Dr James Tweedley
BSc Hons(Portsmouth), MRes (Plymouth), PhD (Murdoch)

Senior lecturer

About me

I am originally from the UK and completed a BSc in Marine Biology from the University of Portsmouth in 2005. During this time I conducted fieldwork in Indonesia for my honours project which involved accessing the influence of mariculture on fish populations in seagrass beds. Having graduated, I was selected to join a multinational survey of the Mediterranean Sea before enrolling in a Masters of Research program in Marine Biology at the University of Plymouth. The focus of my research project was assessing the effect of an invasive alga on seagrass, fish and benthic macroinvertebrate populations in a local estuary.

I came to Murdoch in 2007 to start my PhD, which was funded by the Fisheries Research and Development Corporation and the Department of Environment and Conservation. This project aimed to classify habitat types in the nearshore and offshore waters of Broke Inlet and develop a tool to quantitatively assign any new location within the estuary to a habitat type and predict the fish and benthic macroinvertebrate species likely to inhabit that site.

After graduating I worked as a post-doctoral fellow in the Centre for Sustainable Aquatic Ecosystems before becoming an associate lecturer in 2015. My current roles is as a senior lecture in Animal Biology in the College of Science, Health, Engineering & Education at Murdoch University. I am also leader of the Fish and Fisheries theme in the Centre for Sustainable Aquatic Ecosystems in the Harry Butler Institute at Murdoch University.

Teaching area

I coordinate BIO257: Australian Biodiversity with Dr Barbara Bowen and ENV241: Ecology with A. Prof. Rachel Standish.

BIO257 involves introducing students to taxonomy and systematics and providing them with the skills required to identify local plant and animal species.

ENV241 introduces the key concepts of ecology and the relevance of this field to managing natural resources. The unit also provides the opportunity for students to undertake fieldwork and gain a practical understanding of ecology.

I teach in to a range of other units, including BIO377: Marine Ecology, BIO393: Tropical Marine Biology and VLS683: Advanced Research Methods for Scientists. My involvement focuses on experimental design, fieldwork skills and multivariate statistics.

Research areas

My research focuses on two main areas;(1) the ecology and health of aquatic environments (mainly estuaries) and (2) the management of fisheries and their restoration and enhancement.

  • In community ecology, I aim to understanding linkages between fish and invertebrate communities and complex suites of environmental drivers and develop indices of estuarine health.
  • In fisheries I have been involved in determining the biological characteristics of important species, aquaculture-based enhancement (i.e. the production of fish in aquaculture and release into the environment), restoration of shellfish habitats, the provision and evaluation of artificial reefs and understanding the social and economic dimensions of commercial and recreational fishing.

My vision is the maintenance of healthy and productive aquatic ecosystems for the benefit of biota and society.

My mission is to use collaborative multi-disciplinary research, teaching and community engagement to promote the sustainable use and restoration of aquatic ecosystems.

Current projects

See ‘Awards and grants’ section below for a list of project that I am currently involved with.

Awards and grants

Since 2007, I have been an investigator on 63 grants generating > $4.3 million in research funding, of which more than $900,000 was obtained from category 1 funding bodies.

2020-2021 $52,378 Department of Water and Environmental Regulation. Development of a benthic health index for the Vasse-Wonnerup. Principal investigator.

2020-2021 $60,523 Peel-Harvey Catchment Council. Fish Community Index for monitoring the health of the Peel-Harvey Estuary. Principal investigator.

2020-2021 $24,024 Peel-Harvey Catchment Council. Restoring the Black Pygmy Mussel Xenostrobus securis in the Murray River Estuary. Co-investigator.

2020-2021 $25,854 The Nature Conservancy. Development of a shellfish gardening program for Mandurah high schools. Co-investigator.

2020-2021 $20,119 Recreational Fishing Initiatives Fund. Enhancing habitat in Cockburn Sound to increase production of the squid Sepioteuthis australis. Co-investigator.

2020-2021 $29,701 Department of Biodiversity, Conservation and Attractions. Evaluating fish communities as an indicator of estuarine condition. Principal investigator.

2020-2020 $20,119 BMT Commercial Australia Pty Ltd. Point Grey Channel maintenance dredging environmental monitoring; post-dredge benthic habitat survey. Principal investigator.

2019-2020 $55,038 AECOM. Ashburton Salt Project: Prawn entrainment study part two. Co-investigator.

2019-2021 $334,773 The Nature Conservancy. Shellfish reef restoration in the Swan-Canning Estuary. Co-investigator.

2019-2020 $93,135 Department of Water and Environmental Regulation. Integrated ecological monitoring in the Vasse-Wonnerup Wetlands – July 2019 to March 2020. Principal investigator.

2019-2020 $100,854 Department of Biodiversity, Conservation and Attractions. Investigating and reporting on fish communities as an indicator of estuarine condition. Principal investigator.

2019-2019 $1,000 Conservation Council of Western Australia. Fish survey of Hill Inlet. Principal investigator.

2019-2019 $33,496 Department of Water and Environmental Regulation. Integrated ecological monitoring in the Vasse-Wonnerup Wetlands – January and March 2019. Principal investigator.

2019-2021 $30,000 Murdoch University. Sir Walter Murdoch Distinguished Collaborator Prof. Richard Warwick. Co-investigator.

2019-2019 $40,807 AECOM. Ashburton Salt Project: Prawn entrainment study. Co-investigator.

2018-2019 $7,500 Department of Water and Environmental Regulation. Monitoring Reproductive Success of the Black Bream in the Vasse Wonnerup Wetlands in November 2018 and February 2019. Principal investigator.

2018-2019 $19,101 Department of Water and Environmental Regulation. Integrated ecological monitoring in the Vasse-Wonnerup Wetlands – October 2018. Principal investigator.

2018-2020 $150,000 Peel-Harvey Catchment Council. Stock enhancement of Black Bream in the Peel-Harvey Estuary. Co-investigator.

2018-2029 $70,035 The Nature Conservancy. Revitalizing the Peel-Harvey Estuary through nature-based solutions. Co-investigator.

2018-2019 $11,453 Department of Water and Environmental Regulation. Integrated ecological monitoring in the Vasse-Wonnerup Wetlands – July 2018. Principal investigator.

2018-2019 $99,475 Recreational Fishing Initiatives Fund. Peel Reef Vision: citizen science monitoring of the Mandurah artificial reef. Principal investigator.

2018-2019 $61,148 Recreational Fishing Initiatives Fund. ‘Snag for a snag’. Restoring habitat and prey of recreational fish species in the Swan River Estuary. Co-investigator.

2018-2018 $45,000 Food and Agriculture Organization of the United Nations. Marine stock enhancement review. Co-investigator.

2018-2018 $5,000 City of Busselton. Influence of bar opening on the fish fauna of Toby Inlet. Principal investigator.

2017-2018 $7,500 Department of Water and Environmental Regulation. Continued monitoring of the recovery of the Black Bream population in the Vasse-Wonnerup following a fish kill. Principal investigator.

2017-2018 $30,000 Department of Biodiversity, Conservation and Attractions. Monitoring of the Western School Prawns in the Swan-Canning Estuary following a restocking program. Principal investigator.

2017-2018 $18,627 Coastwest. Science on the Inlet: Determining the fauna composition of Toby Inlet. Principal investigator from Murdoch University, lead applicant City of Busselton.

2017-2018 $70,329 Department of Water and Environmental Regulation. Integrated ecological monitoring in the Vasse-Wonnerup Wetlands. Principal investigator.

2017-2017 $21,919 Department of Water and Environmental Regulation. Benthic macroinvertebrate monitoring in the Vasse-Wonnerup Wetlands. Principal investigator.

2017-2017 $5,500 School of Veterinary and Life Sciences, Murdoch University. Trophic flows on artificial abalone habitat supporting commercial harvesting. Co-investigator.

2017-2017 $3,750 RPS Group Plc. Identification of benthic macroinvertebrates from the Peel-Harvey Estuary. Principal investigator.

2016-2018 $61,326 Department of Water. Monitoring fish passage through the Vasse Surge Gates using Passive Integrated Transponders. Co-investigator.

2016-2017 $7,500 Department of Water. Monitoring the recovery of the Black Bream population in the Vasse-Wonnerup. Principal investigator.

2016-2018 $184,800 State Government of Western Australia. Pink Snapper (Chrysophrys auratus) Stock Enhancement Trial. Principal investigator from Murdoch University, lead applicant Australian Centre for Applied Aquaculture Research.

2016-2017 $80,000 Recreational Fishing Initiatives Fund. Blue Swimmer Crab (Portunus armatus) stocking trial: reducing costs and increasing survival. Principal investigator from Murdoch University, lead applicant Australian Centre for Applied Aquaculture Research.

2016-2019  $398,994 Fisheries Research and Development Cooperation. Golden Fish: evaluating and optimising the biological, social and economic returns of small-scale fisheries. Principal investigator.

2016-2017 $31,000 Department of Parks and Wildlife. Monitoring of the Western School Prawns in the Swan-Canning Estuary following a restocking program. Principal investigator.

2015-2017 $292,488 Recreational Fishing Initiatives Fund. Targeted restocking of Mulloway on the West Australian Coast. Co-investigator.

2015-2017 $96,153 Swan River Trust. Investigating fish community assemblages as an index of estuarine condition in 2016 and 2017. Co-investigator.

2016-2016 $11,784 Milford Haven Waterway Environmental Monitoring Steering Group (UK). Milford Haven Waterway macrobenthos data analysis and review 2008-2015. Co-investigator.

2015-2016 $7,502 Geographe Bay Catchment Council. Monitoring the reproductive success of Black Bream following a large fish kill. Principal investigator.

2015-2016 $52,635 Recreational Fishing Initiatives Fund. Identifying future restocking options for Blue Swimmer Crabs. Principal investigator from Murdoch University, lead applicant Western Australian Fish Foundation.

2015-2016 $152,272 Recreational Fishing Initiatives Fund. Re-establishing recreational prawning in the Swan-Canning Estuary. Principal investigator from Murdoch University, lead applicant Western Australian Fish Foundation.

2015-2015 $2,854 Department of Parks and Wildlife. Are Black Bream from the Swan-Canning Estuary immunocompromised? Principal investigator.

2015-2015 $1,055 Department of Parks and Wildlife. Collection of Black Bream from the Swan-Canning Estuary to investigate whether fish an immunocompromised. Principal investigator.

2014-2017 $330,000 Fisheries Research and Development Corporation. The application, needs, costs and benefits of Habitat Enhancement Structures in Western Australia. Principal investigator from Murdoch University, lead applicant Recfishwest.

2014-2016 $57,200 Recreational Fishing Initiatives Fund. Can recreational fishers provide a cost effective means for monitoring artificial reefs? Principal investigator.

2014-2015 $26,500 Geographe Bay Catchment Council. Snapshot survey of the distribution and abundance of the macrophytes, macroalgae, phytoplankton and macroinvertebrates of the Vasse-Wonnerup Lagoons. Co-investigator.  

2014-2015 $14,345 Geographe Bay Catchment Council. Calculation of key biological information for the management of Black Bream in the Vasse-Wonnerup. Principal investigator.

2014-2017 $136,000 South West Catchments Council. Vasse Wonnerup Wetlands Investigation Node: Stage 1. Co-investigator.

2014-2015 $50,000 State NRM Program Community Grants. Movement and abundance of key fishes in the Vasse-Wonnerup Estuary following a substantial fish kill. Co-investigator.

2013-2013 $15,000 Geographe Bay Catchment Council. Monitoring the fish fauna of the Vasse-Wonnerup wetland system following a substantial fish kill event. Principal investigator.

2013-2015 $200,000 Fisheries Research and Development Cooperation ($100k) and Swan River Trust ($100k). Stock enhancement of the Western School Prawn (Metapenaeus dalli) in the Swan-Canning Estuary; evaluating recruitment limitation, environment and release strategies. Co-investigator.

2013-2015 $19,380 Challenger Institute of Technology. Algal nutrition for larvalWestern School Prawns, Metapenaeus dalli. Co-investigator.

2013-2015 $22,950 Challenger Institute of Technology. Genetic implications of stock enhancement of the Western School Prawn, Metapenaeus dalli, in the Swan River Estuary. Co-investigator.

2013-2015 $121,655 Swan River Trust. Monitoring the ecological condition of the Swan-Canning Estuary using fish community indices. Co-investigator.

2012-2013 $8,007 Coastwest. Increasing community awareness of feral fish in the Vasse-Wonnerup Wetland. Principal investigator.

2012-2013 $14,976 South West Catchments Council: Sediment accumulation and resuspension in the Vasse-Wonnerup Wetlands and its impact on nutrient status and ecological health. Principal investigator.

2011-2013 $215,006 Caring for Our Country: Control of introduced fish and crayfish in the Vasse-Wonnerup Ramsar wetland. Co-investigator.

2010-2012 $73,000 Swan River Trust: Monitoring the effects of artificial oxygenation on biota. Co-investigator.

2011-2011 $14,450 South West Catchments Council: Snapshot survey of the benthic macroinvertebrate fauna of the Vasse-Wonnerup RAMSAR wetlands. Principal investigator.

2007-2008 $2,500 Ernest Hodgkin Trust for Estuary Education and Research: Benthic macroinvertebrate survey of Broke Inlet. Principal investigator.

2007-2010 $70,000 Murdoch University: International PhD scholarship Principal investigator.

Events and speaking engagements

I have been an author on 97 oral presentations and 28 posters at research conferences.

Oral presentations

1. Tweedley, J.R., Krispyn, K.N., Loneragan, N.R. & Whitfield, A. (2021). Protracted occurrence of Sea Mullet in an estuary despite extreme hypersalinity. Australian Marine Science Association (AMSA) Marine Snapchat. Perth, Australia.

2. Krispyn, K.N., Loneragan, N.R. & Tweedley, J.R. (2021). The one that got away: the making of an estuarine fish documentary. Australian Marine Science Association (AMSA) Marine Snapchat. Perth, Australia.

3. Obregón, C., Hughes, M., Loneragan, N.R. & Tweedley, J.R. (20121). Can fisher perceptions be used as information to detect biological change? Australian Marine Science Association (AMSA) Marine Snapchat. Perth, Australia.

4. Obregón, C., Loneragan, N.R., Zeller D., Hughes, M., Gaynor A. & Tweedley, J.R. (2019). Historical fishing perceptions and shifting baselines of a small-scale crab fishery in Western Australia. Applied marine environmental history in the indo-pacific: problems, sources and opportunities. Perth, Australia.

5. Tweedley, J.R., Obregón, C., Poulton, S.J., Abagna, D., Hughes, M., Loneragan, N.R., Tull, M., Garnett A. & Pascoe, S. (2019). The parallel dimensions of fisheries enhancement: evaluating societal support for stocking small-scale recreational estuarine fisheries. 10th Florida State University-Mote International Symposium on Fisheries Ecology and 6th International Symposium on Stock Enhancement and Sea Ranching. Florida, United States of America.

6. Loneragan, N., Obregón, C. Taylor, M., Tweedley, JR., Wu, Z & Ye, Y. (2019). Evaluating trends in research on marine release programs (aquaculture-based enhancement) in western countries compared with China and Japan. 10th Florida State University-Mote International Symposium on Fisheries Ecology and 6th International Symposium on Stock Enhancement and Sea Ranching. Florida, United States of America.

7. Ramm, L.A.W., Florisson, J.H., Watts, S.L. & Tweedley, J.R. (2019). Global trends in artificial reefs: how has design, purpose, location and monitoring method changed over the last 50 years. 10th Florida State University-Mote International Symposium on Fisheries Ecology and 6th International Symposium on Stock Enhancement and Sea Ranching. Florida, United States of America.

8. Abagna, D., Tweedley, J.R. Garnett, A.M. (2019). Small in scale, but not small in value. Economic valuation of recreational crab fishing in south-western Australian estuaries.  West Australian Agricultural and Resource Economics Conference. Perth, Australia.

9. Rose, T., Potter, I.C., Tweedley, J.R. & Warwick, R.M. (2019). Dynamics of mesozooplankton in the Swan-Canning Estuary when it was mesotrophic, including comparisons with the highly-eutrophic Peel-Harvey Estuary. Australian Marine Science Association (AMSA): Marine Science for a Blue Economy Conference. Fremantle, Australia.

10. Florisson, J., Rowland, A., Campbell, L., Tweedley, J.R., Watts, S. & Harvey, E. (2019). Reef Vision: using recreational Fishers to monitor Western Australia’s expanding artificial reef network. Australian Marine Science Association (AMSA): Marine Science for a Blue Economy Conference. Fremantle, Australia.

11. Poh, B., Hodson, K., Tweedley, J.R. & Loneragan, N.R. (2019). Maximising the success of aquaculture-based enhancement programs by being SMART. Australian Marine Science Association (AMSA): Marine Science for a Blue Economy Conference. Fremantle, Australia.

12. Obregón, C., Hughes, M., Tweedley, J.R. & Loneragan, N.R. (2019). Commercial and recreational fishers’ views on the status and management of the blue swimmer crab fisheries in south-western Australia. Australian Marine Science Association (AMSA): Marine Science for a Blue Economy Conference. Fremantle, Australia.

13. Tweedley, J.R., Loneragan, N.R., Poh, B., Crisp, J.A. & Trayler, K. (2019). Restocking and atypical climatic conditions markedly influence the abundance of an obligate estuarine penaeid. Australian Marine Science Association (AMSA): Marine Science for a Blue Economy Conference. Fremantle, Australia.

14. Loneragan, N., Obregón, C. Taylor, M., Tweedley, J.R., Wu, Z & Ye, Y. (2019). The status of marine release programs (aquaculture-based enhancement) in western countries; comparisons with China and Japan. Australian Marine Science Association (AMSA): Marine Science for a Blue Economy Conference. Fremantle, Australia.

15. Poulton, S., Hughes, M., Tweedley, J.R., Obregón, C., & Loneragan, N.R. (2019). Beyond biology: understanding the social dimensions of Blue Swimmer Crab fishing to help inform management. Australian Marine Science Association Western Australia Honours Prize Night. *This talk won the best presentation award at the event.

16. Loneragan, N.R., Obregón, C., Tweedley, J.R., Taylor, M.D. & Ye, Y. (2018). Marine release programs and research in North America, Europe, Oceania and southern Asia. 2nd International Symposium on Modern Marine (Freshwater) Ranching. Chifeng, China. * This presentation was an invited keynote talk.

17. Obregón, C., Poulton, S. Hughes, M., Tweedley, J.R. & Loneragan, N.R. (2018). Social dimensions of a small-scale crab fishery in Western Australia. 3rd World Small-Scale Fisheries Congress. Chiang Mai, Thailand.

18. Poulton, S., Obregón, C., Hughes, M., Loneragan, N.R. & Tweedley, J.R. (2018). Managing recreational crab fisheries; what options are socially acceptable? Australian Marine Science Association (AMSA) Marine Snapchat. Perth, Australia.

19. Obregón, C., Hughes, M., Loneragan, N.R., & Tweedley, J.R. (2018). Size doesn’t matter: Fishers support both limits Australian Marine Science Association (AMSA) Marine Snapchat. Perth, Australia.

20. Poulton, S., Hughes, M., Tweedley, J.R., Obregón, C., & Loneragan, N.R. (2018). Beyond biology: understanding the social dimensions of Blue Swimmer Crab fishing to help inform management. Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

21. Obregón, C., Hughes, M., Tweedley, J.R., & Loneragan, N.R. (2018). Unravelling the importance of social dimensions in a small-scale finfish fishery in Western Australia to help improve management. Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

22. Loneragan, N.R., Tweedley, J.R., Poh, B. & Crisp, J. (2018). Marked changes in the abundance of an obligate estuarine penaeid over five years following restocking and atypical climatic conditions. Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

23. Poh, B., Tweedley, J.R., Chaplin, J.A., Trayler, K.M. & Loneragan, N.R. (2018). Importance of estimating predation rates to increase the success of aquaculture-based enhancements. Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

24. D’Souza, F.M.L., Tweedley, J.R., Loneragan, N.R., Cousins, M., & Robb, M. (2018). Freshwater flow and phytoplankton: is a drying climate good for shallow salt-wedge estuaries? Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

25. Tweedley, J.R., Beatty, S.J. & Cottingham, A. (2018). Estuarine barriers influence the compositions of the fish and invertebrate faunas, but do they alter functional and taxonomic diversity? Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

26. Glazier, S. Valesini, F.J., Tweedley, J.R., Beatty, S., McCallum, R. & Hydnes, G. (2018). A novel multifaceted approach for exploring trophic interactions in an estuarine system. Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

27. Lynch, K. Chambers, J., Hugues-Dit-Ciles, E., Valesini, F.J., Tweedley, J.R., Wilshaw, J., Browne, J., McMahon, K., Kilminster, K., Lane, J., Kalnejais, L., Kelsey, P., Beatty, S. & Williams, K. (2018). Bridging the great divide:  Science integration into management of a Ramsar listed wetland. Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

28. Obregón, C., Hughes, M., Loneragan, N.R. & Tweedley, J.R. (2018). Unravelling the importance of social dimensions in a small-scale finfish fishery in Western Australia to help improve management. Fisheries Society of the British Isles Symposium – The Sustainable Use and Exploitation of Fishes. Norwich, United Kingdom.

29. Peck, L., Cottingham, A. & Tweedley, J.R. (2018). Feasibility of shellfish reef restoration in a south-western Australian estuary. 16th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

30. McCormack, R., Beatty, S.J., Tweedley J.R. & Cottingham, A. (2018). Hydrological and environmental drivers of spatial and temporal patterns of Acanthopagrus butcheri and Mugil cephalus movement through an estuarine barrier. 16th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

31. Obregón, C., Hughes, M., Tweedley, J.R. & Loneragan, N.R. (2018). An elephant in the room: addressing the socialdimensions of a small scale estuarine fishery in Western Australia. 16th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

32. Glazier, S. Valesini, F.J., Tweedley, J.R., Beatty, S., McCallum, R. & Hydnes, G. (2018). A novel multifaceted approach for exploring trophic interactions in an estuarine system. 16th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

33. Poh, B., Tweedley, J.R., Chaplin, J.A., Trayler, K.M. & Loneragan, N.R. (2018). Don’t feed the fish: time-at-release influences predation rates of restocked prawns. 16th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

34. Tweedley, J.R., Warwick, R.M., Hallett, C.S., Potter, I.C. (2017). Fish-based indicators of estuarine condition that do not require reference data. Australian Marine Science Association (AMSA) Marine Snapchat. Perth, Australia.

35. Tweedley, J.R., Loneragan, N.R., Hughes, M., Tull, M., Obregón, C. & Poulton, S.J. (2017). Golden Fish: evaluating and optimising the biological, social and economic returns of small-scale fisheries. Australian Marine Science Association (AMSA) Marine Snapchat. Perth, Australia.

36. Florisson, J., Rowland, A., Campbell, L. & Tweedley, J.R. (2017). Reef Vision: successfully using recreational fishers to monitor artificial reefs using baited remote underwater video systems. 11th International Conference on Artificial Reef and Related Aquatic Habitats. Terengganu, Malaysia.

37. Loneragan, N.R., Taylor, M.D. & Tweedley, J.R. (2017). Aquaculture-based enhancement and habitat enhancement structures: interventions for increasing fisheries production. International Symposium on Modern Marine (Freshwater) Ranching. Chifeng, China. * This presentation was an invited keynote talk.

38. Beatty, S.J., Tweedley, J.R., Williams, J., Keleher, J., Whitty, J., Morgan, D. & Allen, M. (2017). One-way traffic: Black Bream passage through a storm surge barrier. Australian Society for Fish Biology Conference 2017. Albany, Australia.

39. Florisson, J., Rowland, A., Campbell, L. & Tweedley, J.R. (2017). Development of habitat enhancement structures in WA – outcomes for the world. 8th World Recreational Fishing Conference. Victoria, Canada.

40. Florisson, J., Rowland, A., Campbell, L. & Tweedley, J.R. (2017). Reef Vision: successfully using recreational fishers to monitor artificial reefs using baited remote underwater video systems. 8th World Recreational Fishing Conference. Victoria, Canada.

41. Glazier, S., Valesini, F.J., Tweedley, J.R., Beatty, S.J. & Hydnes, G.A. (2017). Constructing a food web for key species in a Ramsar-listed estuarine environment. Australian Marine Science Association Conference 2017. Darwin, Australia.

42. Poh, B., Tweedley, J.R., Trayler, K.M. & Loneragan, N.R. (2017). Calculation of predation rates of restocked individuals: the influence of timing-of-release on survival. 15th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

43. Daviot, J. Fairclough, D.V., Crisafulli, B.M., Tweedley, J.R. & Loneragan, N.R. (2017). Do the abundances of key fish species change in response to natural and human-induced events in Cockburn Sound? 15th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

44. Campbell, T.I., Tweedley, J.R., Johnston, D. & Loneragan, N.R. (2017). Dietary composition of the crab Portunus armatus in two estuaries and a marine embayment in south-west Australia. 15th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

45. Crisp, J.A., D’Souza, F.M. L., Partridge, G.J., Tweedley, J.R. & Moheimani, N.R. (2017). Developing larval aquaculture practices for restocking the Western School Prawn Metapenaeus dalli. 15th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

46. Poulton, S., Hughes, M. & Tweedley, J.R. (2017). Beyond biology: determining the social dimensions of crabbing and support for different management options to sustain crab stocks. 15th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

47. Greenwell, C.N., Coulson, P.G., Tweedley, J.R. & Loneragan, N.R. (2017). Location and ontogentic differences affect the diet of the ambush predator Neosebastes pandus in southern Australia. 15th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

48. Glazier, S., Valesini, F.J., Tweedley, J.R., Beatty, S.J. & Hydnes, G.A. (2017). Constructing a food web for key species in a Ramsar-listed estuarine environment. 15th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2017. Rottnest Island, Australia.

49. Tweedley, J.R. & Calver, M.C. (2016). A technique for expediting comprehensive written feedback on assignments. The Conversation 2016: Learning and Teaching Showcase. Perth, Australia. * This presentation won best rapid fire presentation at the conference.

50. Poh, B., Tweedley, J.R., Loneragan, N.R. (2016). Maximising restocking success by reducing predation. Australian Marine Science Association (AMSA) Marine Snapchat. Perth, Australia.

51. Crisp, J.A., Tweedley, J.R., D’Souza, F.M.L., Partridge, G.J. & Moheimani, N.R. (2016). Reproductive factors affecting the aquaculture of the Western School Prawn. 14th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2016. Rottnest Island, Australia.

52. Glazier, S., Valesini, F.J., Tweedley, J.R., Beatty, S., Hyndes, G. (2016). Constructing a quantitative and predictive food web for the Vasse-Wonnerup Wetland System. 14th Australian Marine Science Association (AMSA) Marine Science Student Workshop 2016. Rottnest Island, Australia.

53. Crisp, J.A., Tweedley, J.R., D’Souza, F.M.L., Partridge, G.J. & Moheimani, N.R. (2016). Reproductive factors influencing the aquaculture of the Western School Prawn Metapenaeus dalli. Asian-Pacific Aquaculture 2016. Surabaya, Indonesia.

54. Beatty. S.J., Allen, M.G., Whitty, J.M., Lymbery, A.J., Keleher, J.J., Tweedley, J.R., Ebner, B.C. & Morgan, D.L. (2015). Movement of introduced goldfish Carassius auratus and the implications for control of a widespread invasive species. Australian Society for Fish Biology Conference 2015. Sydney, Australia.

55. Hallett, C.S. & Tweedley, J.R. (2015). Effects of climate change on estuarine fish communities of south-western Australia. Australian Society for Fish Biology Conference 2015. Sydney, Australia.

56. Tweedley, J.R., Keleher, J.J., Beatty, S.J. & Lymbery, A.J. (2015). The fish faunas of an intermittently-open, seasonally inverse estuary. Australian Society for Fish Biology Conference 2015. Sydney, Australia.

57. Tweedley, J.R., Poh, B., Broadley, A.D., Crisp, J.A. & Loneragan, N.R. (2015). Understanding the ecology of the Western School Prawn to maximize restocking success. 5th International Symposium on Stock Enhancement and Sea Ranching. Sydney, Australia.

58. Broadley, A., Tweedley, J.R. & Loneragan, N.R. (2015). Bioeconomic evaluation of restocking the Western School Prawn (Metapenaeus dalli) in an Australian estuary. 5th International Symposium on Stock Enhancement and Sea Ranching. Sydney, Australia.

59. Trayler, K.M., Tweedley, J.R. & Jenkins, G.I. (2015). Prawn   Watch:   Engaging   fishers   in   science,   restocking   and   sustainable management of an iconic species that has declined in abundance. 2015 Australian Citizen Science Conference. Canberra, Australia.

60. Valesini, F.J., Tweedley, J.R., Beatty,S.J. & Hyndes, G.A. (2015). Who eats what in the Vasse-Wonnerup? Developing a quantitative food web for understanding system function and energy sources. National Estuaries Network (NEN) science symposium. Busselton, Australia.

61. Hugues dit Ciles, E. Chambers, J., Valesini, F., Rodger, K., Moore, S., Tweedley, J., Beatty, S., Ryan, M., Hyndes, G., McMahon, K., Purushothaman, S. & Holgate, K. (2015). Vasse Wonnerup Wetland System investigation node. National Estuaries Network (NEN) science symposium. Busselton, Australia.

62. Tweedley, J.R., Beatty, S.J. Cottingham, A. & Valesini, F.J. (2015). The fish fauna of the Vasse-Wonnerup: life in an extreme estuarine environment. National Estuaries Network (NEN) science symposium. Busselton, Australia.

63. Tweedley, J.R., Beatty, S.J., Keleher, J. & Lynch, K. (2015). Understanding and mitigating the influence of historical managerial decisions on the fauna of the Vasse-Wonnerup. 11th Annual Wetland Management Conference. Cockburn, Australia.

64. Tweedley. J.R., Loneragan, N.R., Jenkins, G., Trayler, K. & Chaplin, J.A. (2014). Assessing the decline in western school prawn (Metapenaeus dalli) abundance in a temperature Australian estuary:  evaluating the effectiveness of prawn releases and the impacts of environmental change. 2014 Annual Symposium of the Fisheries Society of the British Isles. Hull, United Kingdom.

65. Tweedley, J.R. (2014). Life as post-doc. 12thAustralian Marine Science Association (AMSA) Marine Science Student Workshop 2014. Rottnest Island, Australia. * This was an invited presentation to discuss my career thus far.

66. Robinson, S., Valesini, F.J., Hipsey, M. & Tweedley, J.R. (2014). Characterising the shifts in benthic macroinvertebrate assemblages in the Swan-Canning Estuary in relation to changing hydrological and biogeochemical conditions. 12thAustralian Marine Science Association (AMSA) Marine Science Student Workshop 2014. Rottnest Island, Australia.

67. Bennett, A., Tweedley, J.R., Loneragan, N.R. & Poh, B. (2014). Influence of sediment conditions on the decline of the Western School Prawn (Metapenaeus dalli) in a temperate Australian Estuary. 12thAustralian Marine Science Association (AMSA) Marine Science Student Workshop 2014. Rottnest Island, Australia.

68. Crisp, J., Moheimani, N., Tweedley, J.R., D’Souza, F. & Partridge, G. (2014). Larval development and rearing of the Western School Prawn Metapenaeus dalli (Racek) in the laboratory. 12thAustralian Marine Science Association (AMSA) Marine Science Student Workshop 2014. Rottnest Island, Australia.

69. Poh, B, Tweedley, J.R., Chaplin, J.A., Loneragan, N.R. & Trayler, K. (2014). Monitoring the restocking of the Western School Prawn (Metapenaeus dalli) in the Swan-Canning Estuary. 12thAustralian Marine Science Association (AMSA) Marine Science Student Workshop 2014. Rottnest Island, Australia.

70. Tweedley, J.R., Beatty, S.J., Lymbery, A. & Ash, A. (2014). Salty Goldfish: Goldfish can use wetlands as ‘bridges’ to invade new rivers. 10th Annual Wetland Management Conference. Cockburn, Australia.

71. Tweedley, J.R., Keleher, J., Beatty, S.J. & Lymbery, A. (2014). Fishes of the Vasse-Wonnerup: life in an extreme estuarine environment. 10th Annual Wetland Management Conference. Cockburn, Australia.

72. Beatty, S., Morgan, D. & Tweedley, J.R. (2013). Salted fish: a review of fishes in extreme salinity and how anthropogenic changes in salinity have driven community shifts in Western Australia. 9th Indo Pacific Fish Conference. Okinawa, Japan.

73. Loneragan, N.R., Jenkins, G., Stagles, I. & Tweedley, J.R. (2013). An overview of restocking and stock enhancement research and a focus on ecological understanding gained from stocking black bream in the Blackwood River. South West Catchment Council (SWCC) South West Marine Conference 2013. Bunker Bay, Australia.

74. Veale, L.J., Coulson, P., Potter, I.C., Tweedley, J.R., Hallett, C.S. & Hoeksema, S.D. (2013). Shifts in the characteristics of the fish faunas of the Peel-Harvey Estuary in response to anthropogenic and climatic changes. South West Catchment Council (SWCC) South West Marine Conference 2013. Bunker Bay, Australia.

75. Tweedley, J.R., Beatty, S., Lymbery, A., Keleher, J. & Morgan, D. (2013).The fish faunas of the Vasse-Wonnerup: life in an extreme estuarine environment. South West Catchment Council (SWCC) South West Marine Conference 2013. Bunker Bay, Australia.

76. Tweedley, J.R. Valesini, F.J., Warwick, R.M., Wildsmith, M.D. & Potter, I.C. (2013). How healthy are estuaries in south-western Australia? Let’s ask the benthic invertebrates. South West Catchment Council (SWCC) South West Marine Conference 2013. Bunker Bay, Australia.

77. Tweedley, J.R. (2013). My journey: why in my opinion marine biology is one of the best jobs in the world. National Youth Science Forum. Perth, Australia. * This was an invited presentation to discuss my career thus far.

78. Valesini, F.J., Tweedley, J.R., Hallett, C.S., Linke, T.E., Hallett, C.S. & Potter, I.C. (2012). Relationships between ichthyofaunal characteristics and habitats derived using enduring environmental variables 50th Estuarine and Coastal Sciences Association (ECSA) International Conference. Venice, Italy.

79. Veale, L., Coulson, P., Hoeksema, S.D., Tweedley, J.R., Hall, N.G. & Potter, I.C. (2011). The characteristics of the fish assemblages of the Peel-Harvey Estuary: are they linked to eutrophication? Coastal and Estuarine Research Federation Conference 2011. Daytona, USA.

80. Tweedley, J.R., Hallett, C.S. & Hoeksema, S.D. (2011). The impact of artificial oxygenation on the benthic macroinvertebrate fauna of the Swan-Canning Estuary: results after one year of seasonal sampling. Swan River Trust: River Forum 2011. Perth, Australia.

81. Tweedley, J.R., Valesini, F.J. & Potter, I.C. (2011). The biogeography and species composition of the fish faunas of estuaries on the south-western Australian coastline. The Royal Society of Western Australia 13th Annual Postgraduate Symposium. Perth, Australia.

82. Tweedley, J.R. Valesini, F.J., Hoeksema, S.D. & Potter, I.C. (2011). Relationships between fish and benthic macroinvertebrate faunas and habitat types in Broke Inlet, Western Australia. Australian Marine Sciences Association Conference 2011. Fremantle, Australia.

83. Valesini, F.J., Hourston, M., Wildsmith, M.D., Coen, N.J., Tweedley, J.R., Linke, T.E., Hallett, C.S. & Potter, I.C. (2011). Classifying estuarine habitats and predicting their fish faunas – tools for managers and ecologists. Australian Marine Sciences Association Conference 2011. Fremantle, Australia.

84. Veale, L., Coulson, P., Hoeksema, D., Tweedley, J.R., Hall, N.G. & Potter, I.C. (2011). The characteristics of the fish assemblages of the Leschenault Estuary. Inter-period comparisons and their management implications. National Estuaries Network (NEN) science symposium. Perth, Australia.

85. Valesini, F.J., Hourston, M., Wildsmith, M.D., Coen, N.J, Tweedley, J.R., Linke, T.E., Hallett, C.S. & Potter, I.C. (2011). Classifying estuarine habitats and predicting their fish faunas. National Estuaries Network (NEN) science symposium. Perth, Australia.

86. Tweedley, J.R. Valesini, F.J., Hoeksema, S.D. & Potter, I.C. (2011). Relationships between fish and benthic macroinvertebrate faunas and habitat types in Broke Inlet, Western Australia. National Estuaries Network (NEN) science symposium. Perth, Australia.

87. Valesini, F.J., Hourston, M., Wildsmith, M.D., Coen, N.J., Tweedley, J.R., Linke, T.E., Hallett, C.S. & Potter, I.C. (2011). Classifying estuarine habitats and predicting their fish faunas. 14th South African Marine Science Symposium (SAMSS)/ 49th Estuarine and Coastal Sciences Association (ECSA) International Conference. Grahamstown, South Africa.

88. Tweedley, J.R. Valesini, F.J., Hoeksema, S.D. & Potter, I.C. (2011). Relationships between fish and benthic macroinvertebrate faunas and habitat types in a seasonally-open Australian estuary. 14th South African Marine Science Symposium (SAMSS)/ 49th Estuarine and Coastal Sciences Association (ECSA) International Conference. Grahamstown, South Africa. * This presentation won the runner-up prize for best student presentation at this international conference.

89. Tweedley, J.R. (2010). North vs South: comparing the estuarine environment and faunal assemblages of Broke Inlet, south-western Australia to those in the northern hemisphere. The Royal Society of Western Australia 12th Annual Postgraduate Symposium. Perth, Australia.

90. Tweedley, J.R. & Valesini, F.J. (2010). Evaluating the effectiveness of a habitat classification scheme for south-western Australia estuaries in Broke Inlet. 8thAustralian Marine Science Association (AMSA) Marine Science Student Workshop 2010. Rottnest Island, Australia.

91. Tweedley, J.R. (2010). The fauna of Broke Inlet: some comparisons with holarctic estuaries. 8thAustralian Marine Science Association (AMSA) Marine Science Student Workshop 2010. Rottnest Island, Australia.

92. Tweedley, J.R., Valesini, F.J., Hoeksema, S. & Potter, I.C. (2010). Relationships between habitats types and faunas in Broke Inlet (SW Australia). WAMSI and AMSA-WA Marine Science in Western Australia: Show and Tell Symposium. Fremantle, Australia.

93. Tweedley, J.R., Valesini, F.J., Hoeksema, S. & Potter, I.C. (2009). Inter-relations between fish faunas and habitat types in a seasonally-open estuary in south-western Australia. 8th Indo Pacific Fish Conference and 2009 Australian Society of Fish Biology (ASFB) Workshop and Conference. Fremantle, Australia.

94. Tweedley, J.R. (2009). Inter-relationships between habitat types and faunal assemblages in a seasonally-open estuary in south-western Australia. South West Catchment Council (SWCC) South West Marine Conference 2009. Busselton, Australia.

95. Valesini, F.J., Potter, I.C., Wildsmith, M.D., Hourston, M., Coen, N.J. & Tweedley, J.R. (2008) Nearshore habitat classification. The Western Australian Marine Science Institution (WAMSI) Annual Marine Research Presentations 2008. Perth, Australia.

96. Tweedley, J.R. (2008). Habitat and faunal inter-relationships in Broke Inlet. Australian Marine Science Association (AMSA) Marine Science Student Workshop 2008. Rottnest Island, Australia.

97. Tweedley, J.R. (2007). The relationship between habitat types and faunal community structure and trophic interactions in the Broke Inlet, Western Australia. Australian Marine Science Association (AMSA) Marine Science Student Workshop 2007. Rottnest Island, Australia.

Poster presentations

1. Wu, Z., Tweedley, J.R., Loneragan, N.R., Zhang, X. & Tian, T. (2019). Spatial and temporal trends in faunal composition of natural and artificial reefs in the Yellow Sea. 10th Florida State University-Mote International Symposium on Fisheries Ecology and 6th International Symposium on Stock Enhancement and Sea Ranching. Florida, United States of America.

2. Tweedley, J.R., Poh, B., Crisp, J.A., Trayler, K. & Loneragan, N.R. (2019). To stock or not to stock: the estuarine enhancement paradox. 10th Florida State University-Mote International Symposium on Fisheries Ecology and 6th International Symposium on Stock Enhancement and Sea Ranching. Florida, United States of America.

3. Mundy, D.J., Loneragan, N.R, Admiraal, R. Tweedley, J.R. & Wall, M. (2019). Variation in growth of sea-ranched abalone on artificial structures. 10th Florida State University-Mote International Symposium on Fisheries Ecology and 6th International Symposium on Stock Enhancement and Sea Ranching. Florida, United States of America.

4. Ramm, L.A.W., Florisson, J.H., Walker, T.H.E., Watts, S.L. & Tweedley, J.R. (2019). Scientifically robust citizen science monitoring of artificial reefs. 10th Florida State University-Mote International Symposium on Fisheries Ecology and 6th International Symposium on Stock Enhancement and Sea Ranching. Florida, United States of America.

5. Tweedley, J.R., Warwick, R.M., Potter, I.C., Dittmann, S. & Baring, R (2019). Does size matter: the potentially contrasting size-related life-histories of benthic fauna in macro and microtidal estuaries. Australian Marine Science Association (AMSA): Marine Science for a Blue Economy Conference. Fremantle, Australia.

6. Poh, B. Tweedley, JR., Loneragan & Trayler, K. (2019). Could biotic interactions inhibit the recovery of an obligate estuarine penaeid? Australian Marine Science Association (AMSA): Marine Science for a Blue Economy Conference. Fremantle, Australia.

7. Obregón, C., Hughes, M. Loneragan, N., Tweedley, J.R., & van Putten, I. (2019). Network structure and information flow between fishery stakeholders: an interdisciplinary approach towards assessing communication pathways for management. Integrated Marine Biosphere Research (IMBeR) Future Oceans 2 Conference. Brest, France.

8. Obregón, C., Tweedley, J.R., Loneragan, N.R, Hughes, M., & Tull, M. (2018). Golden Fish: evaluating and optimising the biological, social and economic returns of small scale fisheries in Western Australia. 3rd World Small-Scale Fisheries Congress. Chiang Mai, Thailand.

9. Obregón, C., Hughes, M., Tweedley, J.R., & Loneragan, N.R. (2018). Understanding socio-ecological systems: A case study protocol for two small-scale estuarine fisheries in Western Australia. Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

10. Abagna, D., Tweedley, J.R., Tull, M., Garnett, A. & Loneragan, N.R. (2018). Evaluating the costs and benefits of aquaculture-based enhancement in small-scale commercial and recreational fisheries. Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

11. da Silva E.T., Mantovanelli A., Kelsey P., Kalnejais L., Browne J., Charles A., Kilminster K., Lynch K., Tweedley J.R., Chambers J., McMahon K. & Robb M. (2018) Translating outputs from a hydrodynamic model into user-accessible tools to support managers and stakeholders – spotlight on the Vasse and Wonnerup estuaries Estuarine & Coastal Sciences Association (ECSA) 57: Changing estuaries, coasts and shelf systems – Diverse threats and opportunities. Perth, Western Australia.

12. Obregón, C., Tweedley, J.R., Loneragan, N.R, Hughes, M., & Tull, M. (2018). Golden Fish: assessing and increasing the biological, social and economic returns of small scale fisheries in Western Australia. Fisheries Society of the British Isles Symposium – The Sustainable Use and Exploitation of Fishes. Norwich, United Kingdom.

13. Obregón, C., Poulton, S. Hughes, M., Tweedley, J.R. & Loneragan, N.R. (2018). Understanding the social dimensions of a small-scale estuarine crab fishery in Australia. Fisheries Society of the British Isles Symposium – The Sustainable Use and Exploitation of Fishes. Norwich, United Kingdom.

14. Hallett, C.S., Valesini, F.J. & Tweedley, J.R. (2015). The Fish Community Index – a simple and robust tool for monitoring and reporting estuarine health. Australian Society for Fish Biology Conference 2015. Sydney, Australia.

15. Tweedley, J.R., Beatty, S.J., Cottingham, A., Keleher, J.J. & Lynch, K. (2015). Past, present and future: mitigating historical management actions to preserve fish for the future. Australian Society for Fish Biology Conference 2015. Sydney, Australia.

16. Bennett, A.L., Tweedley, J.R., Poh, B. & Loneragan, N.R. (2015). Assessing the sediment preference of a penaeid prawn to inform release strategies. 5th International Symposium on Stock Enhancement and Sea Ranching. Sydney, Australia.

17. Broadley, A., Tweedley, J.R. & Loneragan, N.R. (2015). Estimation of biological parameters for the bioeconomic evaluation of restocking the Western School Prawn (Metapenaeus dalli) in an Australian estuary. 5th International Symposium on Stock Enhancement and Sea Ranching. Sydney, Australia.

18. Tweedley, J.R., Hallett, C.S., Warwick, R.M., Clarke, K.R., Potter, I.C. & Valesini, F.J. (2015). Dramatic impacts of storm-induced hypoxia on the benthos of a microtidal estuary. Estuarine Coastal Science Association Conference 55. London, United Kingdom.

19. Tweedley, J.R., Beatty, S.J., Keleher, J. & Lynch, K. (2015). Understanding and mitigating the influence of historical managerial decisions on the fauna of the Vasse-Wonnerup. 11th Annual Wetland Management Conference. Cockburn, Australia.

20. Bennett, A., Tweedley, J.R., Loneragan, N.R. & Poh, B. (2014). The influence of sediment conditions on the decline of the western school prawn (Metapenaeus dalli) in a temperate Australian estuary. 2014 Annual Symposium of the Fisheries Society of the British Isles. Hull, United Kingdom.

21. Broadley, A., Tweedley, J.R., Poh, B. & Loneragan, N.R. (2014). Estimation of biological parameters for evaluating the success of western school prawn (Metapenaeus dalli) releases in a temperate Australian estuary. 2014 Annual Symposium of the Fisheries Society of the British Isles. Hull, United Kingdom.

22. Tweedley, J.R., Beatty, S.J., Lymbery, A. & Ash, A. (2014). Salty Goldfish: Goldfish can use wetlands as ‘bridges’ to invade new rivers. 10th Annual Wetland Management Conference. Cockburn, Australia.

23. Tweedley, J.R., Keleher, J., Beatty, S.J. & Lymbery, A. (2014). Fishes of the Vasse-Wonnerup: life in an extreme estuarine environment. 10th Annual Wetland Management Conference. Cockburn, Australia.

24. Tweedley, J.R. & Potter, I.C. (2013). The ways in which fish use estuaries: a refinement and expansion of the guild approach. South West Catchment Council (SWCC) South West Marine Conference 2013. Bunker Bay, Australia.

25. Boladeras, V., Tweedley, J.R., Beatty, S.J. & Lymbery, A. (2012). Preliminary investigation into the fish fauna of the Vasse-Wonnerup Wetland System. The Royal Society of Western Australia 14th Annual Postgraduate Symposium. Perth, Australia.

26. Tweedley, J.R., Valesini, F.J., Platell, M.E., Warwick, R.M. & Potter, I.C. (2011). Comparisons of the benthic macroinvertebrate faunas in seasonally-open oligotrophic and eutrophic microtidal estuaries as indicators of environmental degradation. Swan River Trust: River Forum 2011. Perth, Australia.

27. Tweedley, J.R., Valesini, F.J., Platell, M.E., Warwick, R.M. & Potter, I.C. (2011). Comparisons of the benthic macroinvertebrate faunas in seasonally-open oligotrophic and eutrophic microtidal estuaries as indicators of environmental degradation. The Royal Society of Western Australia 13th Annual Postgraduate Symposium. Perth, Australia.

28. Tweedley, J.R., Valesini, F., Hoeksema, S. & Potter, I.C. (2010). Classifying habitats in Broke Inlet using Enduring Environmental Variables. The Royal Society of Western Australia 12th Annual Postgraduate Symposium. Perth. Australia.

Professional and community service

I am an active member of the Australian Marine Sciences Association (www.amsa.asn.au/) and the Estuarine and Coastal Science Association (www.ecsa-news.org/) and have held memberships with the Australian Society for Fish Biology (www.asfb.org.au/), Royal Society of Western Australia (www.royalsocietyofwa.com/), Fisheries Society of the British Isles (www.fsbi.org.uk), Marine Biological Association of the United Kingdom (www.mba.ac.uk/) and World Seagrass Association (www.worldseagrass.org/).

Since 2016 I have sat on the WA and National councils for the Australian Marine Sciences Association (AMSA), the peak national association for marine scientists. In these roles I manage their communications, in particular social media accounts, am Book Review Editor and used to produce the weekly electronic newsletter. I was a scientific committee member for AMSA conference in Fremantle in 2019 (http://amsa19.amsa.asn.au/) and the 10th Florida State University-MOTE International Symposium on Fisheries Ecology and 6th International Symposium on Stock Enhancement and Sea Ranching (https://mote.org/research/program/developing-and-integrating-enhancement-strategies-to-improve-and-restore-fi).

My research has been showcased on news broadcasts for channels Nine, Ten and GWN and on social media by pages like I F*cking Love Science and the LadBible, followed by 25 and 19 million people, respectively. I completed a video shoot with Matthew Evans (aka The Gourmet Farmer) for the SBS documentary ‘What’s the Catch’. Research I have conducted has featured in articles for a range of Australian and international newspapers (e.g. Time Magazine) and by FISH magazine (published by the FRDC). I strongly believe that community engagement is an important component of science and was a WA finalist in the international FameLab competition (www.famelab.org) in 2014. I regularly present, for various organisations at community workshops/presentations and helped establish successful citizen science projects for monitoring estuarine prawn populations (http://www.riverguardians.com/projects/prawn-watch) and artificial reefs (http://recfishwest.org.au/reef-vision-artificial-reef-monitoring/).

Doctoral and masters supervisions

Together with colleagues, I have been involved in the supervision of 8 PhDs (2 completed, 2 under examination and 4 currently enrolled) and 21 Honours (16 completed with 9 awarded 1st class and 5 currently enrolled).

PhD

Yudi Herdiana: part time from Semester 2 2019 (Co-supervisor with B. Wiryawan [Bogor Agricultural University, Indonesia] & N. Loneragan [MU]). Improving the understanding of grouper stocks and fisheries dynamics to enhance their management in Saleh Bay-Sumbawa, Indonesia.

Fauziah Azmi: full time from Semester 1 2019 (Co-supervisor with C. Hewitt [MU], M. Campbell [Deakin] & C. Sherman [Deakin]). Biological interaction of Terpios hoshinota and coral’s microbiome to understand rapid expansion of the sponge within the Pacific and Indian Ocean.

Denis Abagna: full time from Semester 1 2018 (Co-supervisor with M. Tull [MU], A. Garnett [MU] & S. Pascoe [CSIRO]). Economic valuation of small-scale estuarine fisheries in south-western Australia.

Clara Obregón Lafuente: full time from Semester 2 2017 (Co-supervisor with M. Hughes [MU] & N. Loneragan [MU]). The social-ecological dimensions of small-scale crab fisheries in Western Australia. Submitted March 2021.

Sorcha Cronin-O’Reilly: full time from Semester 1 2017 (Co-supervisor with F. Valesini [MU], C. Hallett [MU] & B. Eyre [Southern Cross University]). Benthic community structure, health and function of a microtidal estuary in south-western Australia. Submitted March 2021.

Brian Poh: PhD, full time from semester 2 2013 (Co-supervisor with N. Loneragan [MU], J. Chaplin [MU] & K. Trayler [Swan River Trust]). Evaluating the population genetics, recruitment limitations and release strategies of Western School Prawns (Metapenaeus dalli) during a restocking program in the Swan-Canning Estuary.

Jason Crisp: PhD, full time from semester 2 2013 (Co-supervisor with N. Moheimani [MU], F. D’Souza [Dept. of Water WA] & G. Partridge [Challenger Institute of Technology]). Aspects of reproduction, larval development and rearing for the aquaculture-based enhancement of the Western School Prawn Metapenaeus dalli. PhD conferred 2018.

Lauren Veale: PhD, Full time from semester 2 2008, (Co-supervisor, with I. Potter, P. Coulson & C. Hallett [all MU]). Inter-period comparisons of the ichthyofaunas of two nearby, modified estuaries and the biology of Pelates octolineatus (Terapontidae). PhD conferred 2014.

 

Honours

Dillon Newman: full time from semester 1 2021 (Principal supervisor with M. van Keulen [MU]). Macrophyte communities of southern Western Australian estuaries.

Natalie Travaglione: full time from semester 1 2021 (Principal supervisor with R. Evans [Dept Biodiversity, Conservation and Attractions]). Influence of turbidity on the levels of heterotrophy among Scleractinian corals.

Katelyn Fox: part time from semester 1 2021 (Co-supervisor with A. Cottingham & M. van Keulen [MU]). Influence of temperature on the valve gape behaviour of giant clams on Ningaloo reef.

Caitlan Davis: part time from semester 1 2021 (Principal supervisor with N. Loneragan [MU]). Influence of bar opening regime on invertebrate communities in microtidal estuaries.

Kurt Krispyn: part time from semester 1 2020 (Principal supervisor with N. Loneragan [MU]). Faunas of the micro-estuaries of the Albany region of Western Australia: influence of bar type on composition.

Lachlan Ramm: part time from semester 1 2019 (Principal supervisor with J. Florisson [Recfishwest]). Composition of the fish fauna of the Mandurah artificial reef. 1st class.

Charles Maus: part time from semester 1 2019 (Principal supervisor with A. Cottingham [MU]). Biology and ecology of deployed shellfish habitats in the Swan-Canning Estuary. IIa.

Jesse Newton: part time from semester 1 2019 (Co-supervisor supervisor with Ben Roennfeldt & A. Cottingham [MU]). Optimising brood stock conditioning and methods for breeding Black Bream (Acanthopagrus butcheri) for restocking an important recreational fishery. IIa.

Richelle McCormack: part time from semester 1 2018 (Co-supervisor with Stephen Beatty & A. Cottingham [MU]). Hydrological and environmental drivers of fine-scale spatial and temporal patterns of Acanthopagrus butcheri and Mugil cephalus through fish gates in a south-western Australian estuary. 1st class.

Lauren Peck: part time from semester 1 2018 (Co-supervisor with A. Cottingham [MU]). Restoring Blue Mussel (Mytilus planulatus) reefs to enhance habitat and prey communities for important recreational fish species in the Swan River Estuary. IIa.

Sarah Poulton: part time from semester 1 2017 (Co-supervisor with M. Hughes [MU]). Determining the social dimensions of Blue Swimmer Crab fishing and support for different management options to sustain stocks. 1st class.

Claire Greenwell: full time from semester 1 2017 (Co-supervisor with N. Loneragan [MU]). Octopus as predators of Haliotis laevigata on an abalone sea ranch of south-western Australia. 1st class.

Jake Daviot: full time from Semester 1 2017 (Principal supervisor with D. Fairclough [Dept. of Fisheries WA] and N. Loneragan [MU]). Analysis of fish community data collected in annual surveys of Cockburn Sound using baited remote underwater video. IIa.

Theodore Campbell: part time from semester 1 2016 (Co-supervisor with N. Loneragan [MU] and D. Johnston [Dept. of Fisheries WA]). Dietary composition of the Blue Swimmer Crab, Portunus armatus, and life history characteristics of related species. 1st class.

Tim Walker: full time from semester 1 2016 (Principal supervisor with J. Chaplin [MU]). Characteristics of the fish faunas of artificial reefs in Geographe Bay determined from video footage collected by recreational fishers. 1st class.

Kyle Hodson: full time from semester 1 2016 (Principal supervisor with N. Loneragan [MU]). A methodology to develop aquaculture-based release strategies with an application to Metapenaeus dalli in the Swan-Canning Estuary: the Survival-Maximisation-at-Release Tool (SMART). 1st class.

Keyley Hogan-West: full time from semester 1 2015 (Co-supervisor with N. Loneragan & P. Coulson [MU]). Biology and ecology of the non-indigenous goby Acentrogobius pflaumii (Bleeker 1853) in the Swan-Canning Estuary. 1st class.

Tom Bateman: full time from semester 1 2015 (Principal supervisor with J. Chaplin [MU]). Artificial Reefs: types, applications, trends in deployment and the development of a cost-effective method for monitoring their fish faunas? 1st class.

James Florisson: full time from semester 2 2014 (Principal supervisor with H. Gill & J. Chaplin [MU]). Can recreational fishers provide a cost effective means for monitoring artificial reefs? IIa.

Amber Bennett: full time from semester 1 2014 (Principal supervisor with N. Loneragan [MU]). The influence of sediment compositions on the Western School Prawn Metapenaeus dalli in a temperate Australian estuary. 1st class.

Andrew Broadley: full time from semester 1 2014 (Co-supervisor with N. Loneragan [MU]). Assessing the potential for restocking the Western School Prawn Metapenaeus dalli in a temperate Australian estuary. 1st class.

Publications

I have published 56 journal articles & book chapters and 51 scientific reports for funding bodies. These documents have been cited 1,609 times (h-index 20, i10 36) according to Google Scholar.

Journal articles and book chapters

1. Whitfield, A.K., Elliott, M., Blaber, S.J.M., Harrison, T.D., Tweedley, J.R., Franco, A. & Potter, I.C. (In press) Fish Assemblages and Functional Groups, in: Whitfield, A.K., Elliott, M., Blaber, S.J.M. & Able, K. (Eds.). Estuarine Fish and Fisheries. Wiley.

2. Elliott, M., Houde, E., Lamberth, S. & Tweedley, J.R. (In press) Management of Fishes and Fisheries in Estuaries, in: Whitfield, A.K., Elliott, M., Blaber, S.J.M. & Able, K. (Eds.). Estuarine Fish and Fisheries. Wiley.

3. Cowley, P.D., Tweedley, J.R. & Whitfield, A.K. (In press) Fish Conservation, in: Whitfield, A.K., Elliott, M., Blaber, S.J.M. & Able, K. (Eds.). Estuarine Fish and Fisheries. Wiley.

4. Potter, I.C., Rose, T.H., Huisman, J., Hall, N.G., Denham, A. & Tweedley, J.R. (In press). Large variations in eutrophication among estuaries reflect massive differences in composition and biomass of macroalgal drift. Marine Pollution Bulletin. 

5. Ou, Z., Wu, Z., Zhang, Z., Tweedley, J.R., Dong, S., Wang, Zhaoguo, Gao, D., Liu, M., Xing, B. & Tao, T. (In press). Review of baited remote underwater video (BRUV) technology. Journal of Fishery Sciences of China. https://kns.cnki.net/kcms/detail/11.3446.s.20210323.0952.002.html. 

6. Campbell, T., Tweedley, J.R., Johnston, D. & Loneragan, N.R. (2021). Crab diets differ between adjacent estuaries and habitats within a sheltered marine embayment. Frontiers in Marine Science. 8:564695.

7. Warwick, R.N., Hourston, M., Tweedley, J.R. & Potter, I.C. (2021). The contrasting ecology of free-living nematodes in macrotidal and microtidal estuaries. Estuaries and Coasts 44: 214–228.

8. Obregón, C., Admiraal, R., van Putten, I., Hughes, M., Tweedley, J.R. & Loneragan, N.R. (2020) Who you speak to matters: social network analysis on information sharing to inform the management of a small-scale fishery. Frontiers in Marine Science. October 2020 (7): 578-14.

9. Obregón, C., Tweedley, J.R., Loneragan, N.R., & Hughes, M. (2020). Different but not opposed: perceptions between fishing sectors on the status and management of a crab fishery. ICES Journal of Marine Science 77 (6): 2354–2368.

10. Rose, T.H., Tweedley, J.R., Warwick, R.M. & Potter, I.C. (2020). Influences of microtidal regime and eutrophication on estuarine zooplankton. Estuarine, Coastal and Shelf Science. 238: 106689.

11. Maschette, D., Fromont, J., Platell, M.E., Coulson, P.G., Tweedley, J.R. & Potter I.C. (2020). Characteristics and implications of spongivory in the Knifejaw Oplegnathus woodwardi (Waite) in temperate mesophotic waters. Journal of Sea Research 157: 101847.

12. Obregón, C., Hughes, M., Loneragan, N.R., Poulton, S.J. & Tweedley, J.R. (2020). A two-phase approach to elicit and measure beliefs on management strategies: fishers supportive and aware of trade-offs associated with stock enhancement. Ambio 49(2): 640-649.

13. Hogan-West, K., Coulson, P.G., Tweedley, J.R. & Loneragan, N.R. (2020). Biological characteristics of the non-indigenous Acentrogobius pflaumii (Bleeker 1853) in a warm-temperate estuary, and thus very different from its typical environment. Regional Studies in Marine Science 33: 100942.

14. Greenwell, C.N., Loneragan, N.R., Tweedley, J.R. & Wall, M. (2019). Diet and trophic role of octopus on an abalone sea ranch. Fisheries Management and Ecology 26: 638–649.

15. Wu, W, Tweedley, J.R., Loneragan, N.R. & Zhang, X. (2019). Artificial reefs can mimic natural habitats for fish and macroinvertebrates in temperate coastal waters of the Yellow Sea. Ecological Engineering. 139: 105579.

16. Hogan-West, K., Tweedley, J.R., Coulson, P.G. & Loneragan, N.R. (2019). Abundance and distribution of the non-indigenous Acentrogobius pflaumii and native gobiids in a temperate Western Australian estuary. Estuaries and Coasts. 42(6): 1612-1631.

17. Loneragan, N.R., Taylor, M.D. & Tweedley, J.R. (2019). A drop in the ocean: marine fish releases in Australia. Austral Ecology. 44 (3): 545-551.

18. Rose, T.H., Tweedley, J.R., Warwick, R.M. & Potter, I.C. (2019). Zooplankton dynamics in a highly eutrophic microtidal estuary. Marine Pollution Bulletin. 142: 433-451.

19. Greenwell, C.N., Loneragan, N.R., Admiraal, R., Tweedley, J.R. & Wall, M. (2019). Octopus as predators of abalone on a sea-ranch. Fisheries Management and Ecology. 26(2): 108-118.

20. Poh, B., Tweedley, J.R., Chaplin, J.A., Trayler, K.M., Crisp J.A. & Loneragan, N.R. (2019). Influence of physico-chemical and biotic factors on the distribution of a penaeid in a temperate estuary. Estuarine, Coastal and Shelf Science. 218: 70-85.

21. Wu, Z., Zhang, X., Dromard, C.R., Tweedley, J.R. & Loneragan, N.R. (2019). Partitioning of food resources among three sympatric scorpionfish (Scorpaeniformes) in coastal waters of the northern Yellow Sea. Hydrobiologia. 826: 331-351.

22. Tweedley, J.R., Dittmann, S.R., Whitfield, A.K., Withers, K., Hoeksema, S.D., Potter, I.C. (2019 Hypersalinity: Global Distribution, Causes, and Present and Future Effects on the Biota of Estuaries and Lagoons, in: Wolanski, E., Day, J.H., Elliott, M., Ramachandran, R. (Eds.), Coasts and Estuaries: The Future. Elsevier, Amsterdam, The Netherlands, pp. 523-546.

23. Crisp, J.A., D’Souza, F.M.L., Tweedley, J.R., Partridge, G.J. & Moheimani, N.R. (2018). Performance of mixed species and mono-specific algal diets for culture of larval western school prawns. Metapenaeus dalli. Journal of the World Aquaculture Society. 49: 845-856.

24. Greenwell, C.N., Coulson, P.G., Tweedley, J.R. & Loneragan, N.R. (2018). Regional differences in the feeding of the ambush predator Neosebastes pandus and comparisons of diets in the Scorpaenidae, Triglidae and Platycephalidae. Journal of Fish Biology. 93: 95-109.

25. Valesini, F.J., Wildsmith, M.D. & Tweedley, J.R. (2018). Predicting estuarine faunal assemblages using enduring environmental surrogates, with applications in systematic conservation planning. Ocean & Coastal Management. 165: 80-98.

26. Beatty, S.J., Tweedley, J.R., Cottingham, A., Ryan, T., Williams, J., Lynch, K & Morgan, D.L. (2018). Entrapment of an estuarine fish associated with a coastal surge barrier can increase the risk of mass mortalities. Ecological Engineering. 122: 229-240.

27. Warwick, R.M., Tweedley, J.R. & Potter, I.C. (2018). Microtidal estuaries warrant special management measures that recognise their critical vulnerability to pollution and climate change. Marine Pollution Bulletin. 135: 41-46.

28. Florisson, J.H., Tweedley, J.R., Walker, T.H.E. & Chaplin, J.A. (2018). Reef Vision: a citizen science program 1 for monitoring the fish faunas of artificial reefs. Fisheries Research. 206: 296-308.

29. Hoeksema, S.D., Chuwen, B.M., Tweedley, J.R. & Potter, I.C. (2018). Factors influencing marked variations in the frequency and timing of bar breaching and salinity and oxygen regimes among normally-closed estuaries. Estuarine Coastal and Shelf Science. 208: 205-218. DOI: 10.1016/j.ecss.2018.04.010.

30. Hallett, C.S., Hobday, A.J., Tweedley, J.R. Thompson, P.A., McMahon, K. & Valesini, F.J. (2018). Observed and predicted impacts of climate change on the estuaries of south-western Australia, a Mediterranean climate region. Regional Environmental Change. 18(5): 1357–1373.

31. Crisp, J.A., Tweedley, J.R., D’Souza, F.M.L. Poh, B. & Loneragan, N.R. (2018). Environmental factors influencing the reproduction of an estuarine penaeid population and implications for management. Fisheries Management and Ecology. 25: 203-219.

32Plenty, S.J., Tweedley, J.R., Bird, D., Newton, L., Warwick, R.M., Henderson, P.A., Hall, N.G. & Potter, I.C. (2018). Long-term annual and monthly changes in mysids and caridean decapods in a macrotidal estuarine environment in relation to climate change and pollution. Journal of Sea Research. 137: 35-46.

33. Poh, B., Tweedley, J.R., Chaplin, J.A., Trayler, K.M. & Loneragan, N.R. (2018). Estimating predation rates of restocked individuals: the influence of timing-of-release on metapenaeid survival. Fisheries Research. 198: 165-179.

34. Tweedley, J.R., Hallett, C.S. & Beatty, S.J. (2017). Baseline survey of the fish fauna of a highly eutrophic estuary and evidence for its colonisation by Goldfish (Carassius auratus). International Aquatic Research. 9(3): 259-270.

35. Beatty. S.J., Allen, M.G., Whitty, J.M., Lymbery, A.J., Keleher, J.J., Tweedley, J.R., Ebner, B.C. & Morgan, D.L. (2017). First evidence of spawning migration by goldfish Carassius auratus and the implications for control of a globally invasive species. Ecology of Freshwater Fish. 26(3): 444-455.

36. Tweedley, J.R., Warwick, R.M., Hallett, C.S., Potter, I.C. (2017). Fish-based indicators of estuarine condition that do not require reference data. Estuarine Coastal and Shelf Science. 191: 209-220.

37. Crisp, J.A., D’Souza, F.M.L., Tweedley, J.R., Partridge, G.J. & Moheimani, N.R. (2017). Quantitative determination of ovarian development in penaeid prawns (Decapoda: Penaeidae). Journal of Crustacean Biology. 37(1): 81-89.

38. Crisp, J.A., Partridge, G.J., D’Souza, F.M.L., Tweedley, J.R. & Moheimani, N.R. (2017). Effects of temperature and salinity on larval survival and development of the western school prawn Metapenaeus dalli. International Aquatic Research. 9: 1-10.

39. Broadley, A.D., Tweedley, J.R. & Loneragan, N.R. (2017). Estimating biological parameters for potential penaeid restocking in a temperate estuary. Fisheries Research. 186(2): 488-501.

40. Tweedley, J.R. Warwick, R.M & Potter, I.C. (2016). The contrasting ecology of temperate macrotidal and microtidal estuaries. Oceanography and Marine Biology: An Annual Review. 54: 73-171.

41. Calver, M.C. & Tweedley, J.R. (2016). A technique for expediting comprehensive written feedback on assignments. American Biology Teacher. 78: 684–686.

42. Potter, I.C., Veale, L., Tweedley, J.R. & Clarke, K.R. (2016). Decadal changes in the ichthyofauna of a eutrophic estuary following a remedial engineering modification and subsequent environmental shifts. Estuarine, Coastal and Shelf Science. 181: 345-363.

43. Crisp, J.A., Tweedley, J.R., D’Souza, F.M.L., Partridge, G.J., Moheimani, N.R. (2016). Larval development of Metapenaeus dalli (Racek) (Crustacea: Decapoda: Penaeidae) reared in the laboratory, including comparisons with other metapenaeids. Journal of Natural History. 50(27-28): 1699-1724.

44. Tweedley, J.R., Hallett, C.S., Warwick, R.M., Clarke, K.R. & Potter, I.C. (2016). The hypoxia that developed in a microtidal estuary following an extreme storm produced dramatic changes in the benthos. Marine & Freshwater Research. 67(3): 327-341.

45. Tweedley, J.R. Warwick, R.M & Potter, I.C. (2015). Can biotic indicators distinguish between natural and anthropogenic environmental stress in estuaries? Journal of Sea Research. 102: 10-21.

46. Potter, I.C., Tweedley, J.R., Elliott, M. & Whitfield, A.K. (2015). The ways in which fish use estuaries: a refinement and expansion of the guild approach. Fish and Fisheries. 16(2): 230-239.

47. Potter, I.C., Warwick, R.M., Hall, N.G., & Tweedley, J.R. (2015). The physico-chemical characteristics, biota and fisheries of estuaries, in: Craig, J. (Ed.) Freshwater Fisheries Ecology, Wiley-Blackwell. pp.48-79.

48. Veale, L., Tweedley, J.R., Clarke, K.R., Hallett, C.S. & Potter, I.C. (2014). Characteristics of the ichthyofauna of a temperate microtidal estuary with a reverse salinity gradient, including inter-decadal comparisons. Journal of Fish Biology. 85(5): 1320-1354.

49. Valesini, F.J., Tweedley, J.R., Clarke, K.R. & Potter, I.C. (2014). The importance of local, system-wide and regional spatial scales in structuring temperate estuarine fish communities. Estuaries and Coasts. 37:525–547.

50. Tweedley, J.R., Warwick, R.M., Clarke, K.R. & Potter, I.C. (2014). Family-level AMBI is valid for use in the north-eastern Atlantic but not for assessing the health of microtidal Australian estuaries. Estuarine, Coastal and Shelf Science. 141: 85-96.

51. Clarke, K.R., Tweedley, J.R. & Valesini, F.J. (2014). Simple shade plots aid better long-term choices of data pre-treatment in multivariate assemblage studies. Journal of the Marine Biological Association of the United Kingdom. 94(1): 1-16.

52. Tweedley, J.R., Bird, D.J., Potter, I.C., Gill, H.S., Miller, P.J., O’Donovan, G. & Tjakrawidjaja, A.H. (2013). Species compositions and ecology of the riverine ichthyofaunas on two Sulawesian islands in the biodiversity hotspot of Wallacea. Journal of Fish Biology. 82: 1916-1950.

53. Tweedley, J.R., Warwick, R.M., Valesini, F.J., Platell, M.E. & Potter, I.C. (2012). The use of benthic macroinvertebrates to establish a benchmark for evaluating the environmental quality of southern hemisphere estuaries. Marine Pollution Bulletin. 64: 1210-1221.

54. Tweedley, J.R. & Hallett, C.S. (2012). Fish fauna survey provides new insights into the Vasse-Wonnerup Wetland System. Wetlands Australia 21: 34-35.

55. Lek, E., Fairclough, D.V., Platell, M.E., Clarke, K.R., Tweedley, J.R. & Potter, I.C. (2011). To what extents are the dietary compositions of three abundant, co-occurring labrid species different and related to latitude, habitat, body size and season? Journal of Fish Biology. 78(7): 1913-1943.

56. Tweedley, J.R., Jackson, E.L. & Attrill, M.J. (2008). Zostera marina seagrass beds enhance the attachment of the invasive alga Sargassum muticum in soft sediments. Marine Ecology Progress Series. 354: 305-309.

In review

Ramm, L.A.W., Florisson, J.H., Watts, S.L., Becker, A. & Tweedley, J.R. (In review). Artificial reefs in the anthropocene: a review of spatial and temporal trends in their design, purpose and monitoring. Bulletin of Marine Science.

Tweedley, J.R., Sama, A., Poh, B. & Loneragan, N.R. (In review). Baseline survey of the fish and invertebrate fauna of Hill Inlet, the northernmost estuary in south-western Australia. FiSHMED: Fishes in Mediterranean Environments. Document also uploaded to BioRxiv;https://doi.org/10.1101/2020.06.21.163402.

Obregón, C., Hughes, M., Tweedley, J.R. & Loneragan, N.R. (In review).Feeling the pinch: perceived marginalisation of small-scale commercial crab fishers by an expanding recreational sector, in: Jentoft, S. & Chuenpagdeeb, R. (Eds.). Blue Justice for Small-Scale Fisheries. Elsevier.

Krispyn, K.N., Loneragan, N.R., Whitfield, A.K. & Tweedley, J.R. (In review). Salted mullet: protracted occurrence of Mugil cephalus under extreme hypersaline conditions. Estuarine, Coastal and Shelf Science.

 

Scientific reports

1. Tweedley, J.R., Cottingham, A. & Beatty, S.J. (2021). Vasse-Wonnerup Integrated Monitoring Summary 2017-20: Fish component. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 5 pp.

2. Tweedley, J.R., Cottingham, A. & Beatty, S.J. (2021). Vasse-Wonnerup Integrated Monitoring Summary 2017-20: Benthic macroinvertebrate component. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 12 pp.

3. Tweedley, J.R., Krispyn, K. & Hallett, C.S. (2021). Assessment of the condition of the Swan-Canning Estuary in 2020, based on the Fish Community Index of estuarine Condition. Report for the Department of Biodiversity, Conservation and Attractions, Western Australia. Murdoch University, Perth, Western Australia. 46 pp.

4. Beatty S., Cottingham A., Tweedley J.R, Watsham J., Poh B., Ryan T. & Morgan D. (2020). Fish communities around the Kent Street Weir following the initial period of fishway operation. Report to Department of Biodiversity, Conservation and Attractions, Western Australia. Murdoch University, Perth, Western Australia. 59 pp.

5. Tweedley, J.R., Cronin-O’Reilly, S., Harvey, M. & Valesini, F.J. (2020). Benthic habitat characteristics before and after dredging of the Point Grey Channel in the Peel-Harvey Estuary. Report to BMT Commercial Australia Pty Ltd. Murdoch University, Perth, Western Australia. 44 pp.

6. Tweedley, J.R., Cottingham, A. & Beatty, S.J. (2020). Vasse-Wonnerup Integrated Monitoring 2018-19: Benthic macroinvertebrate component. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 67 pp.

7. Tweedley, J.R., Cottingham, A., Strachan, S. & Beatty, S.J. (2020). Vasse-Wonnerup Integrated Monitoring 2017-18: Benthic macroinvertebrate component. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 61 pp.

8. Tweedley, J.R., Cottingham, A. & Beatty, S.J. (2019). Vasse-Wonnerup Integrated Monitoring 2018-19: Fish component. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 31 pp.

9. Tweedley, J.R., Sama, A., Poh, B & Loneragan, N.R. (2019). Snapshot survey of the fish and invertebrate fauna of Hill Inlet. Report for the Conservation Council of Western Australia. Murdoch University, Perth, Western Australia. 29 pp.

10. Cottingham, A., Tweedley, J.R., Beatty, S.J. & McCormack, R. (2019). Synopsis of Black Bream research in the Vasse-Wonnerup. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 35 pp.

11. Tweedley, J.R., Poh, B., Crisp, J.A. & Loneragan, N.R. (2019). Changes in the abundance of the Western School Prawn (2013 2018) in association with a restocking program. Report for the Department of Biodiversity, Conservation and Attractions. Murdoch University, Perth, Western Australia. 60 pp.

12. Tweedley, J.R., Cottingham, A. & Beatty, S.J. (2019). Vasse-Wonnerup Integrated Monitoring 2017-18: Fish component. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 34 pp.

13. Tweedley, J.R., Cottingham, A. & Beatty, S.J. (2019). Benthic macroinvertebrate monitoring in the Vasse-Wonnerup Wetlands: March 2017. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 47 pp.

14. Chambers, J., McCallum, R., Glazier, S., Purushothaman, G., Hyndes, G.A., Valesini, F.J. Tweedley, J.R., Rodger, K., Kobryn, H., McMahon, K. (2018). Vasse Wonnerup Wetland System Investigation Node: Summary Report. Report for the South West Catchments Council. 59 pp.

15. Florisson, J.H., Rowland, A.J., Matthews, A.C., Tweedley, J.R. & Campbell, L.L. (2018). The application, needs, costs and benefits of Habitat Enhancement Structures in Western Australia and cost effective monitoring methods. Report for the Fisheries Research and Development Corporation. Recfishwest, Perth, Western Australia. 204 pp. http://frdc.com.au/Archived-Reports/FRDC%20Projects/2014-005-DLD.pdf.

16. Cottingham, A., Tweedley, J.R., & Beatty, S.J. (2018). Continued monitoring of the recovery of the Black Bream population in the Vasse-Wonnerup. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 36 pp.

17. Tweedley, J.R., Cottingham, A., Krispyn, K.N. & Beatty S.J. (2018). Influence of bar opening on the fish fauna of Toby Inlet. Report for the City of Busselton and Coastwest, Western Australia. Murdoch University, Perth, Western Australia. 36 pp.

18. Jenkins, G.I., Michael, R., Tweedley, J.R., Oberstein, D., Loneragan, N.R. & Johnston, D.J. (2018) Blue Swimmer Crab (Portunus armatus) stocking trial: reducing costs and increasing survival. Report for the Recreational Fishing Initiatives Fund. Murdoch University, Perth, Western Australia. 60 pp.

19. Tweedley, J.R., Breton, M. & Paice, R. (2018). Science of Toby Inlet. Report for Coastwest. City of Busselton and Murdoch University. 28 pp.

20. Beatty, S., Ryan, T., Tweedley, J.R., Williams, J., Allen, M. & Morgan, D.L. (2018). The movement of fish through the Vasse fish gate: 2017-18. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 47 pp.

21. Tweedley, J.R., Cottingham, A. & Beatty, S.J. (2018). Continuation of the monitoring of the recruitment success of the Black Bream population in the Vasse-Wonnerup. Report for the Department of Water and Environmental Regulation, Western Australia. Murdoch University, Perth, Western Australia. 33 pp. http://researchrepository.murdoch.edu.au/id/eprint/40147/.

22. Tweedley, J.R., Loneragan, N.R., Crisp, J.A., Poh, B. Broadley, A.D., Bennett, A.L., Hodson, K.P., Trayler, K.M., Jenkins, G.I., Chaplin, J.A. (2017). Restocking of the Western School Prawn (Metapenaeus dalli) in the Swan Canning Riverpark. Report for the Department of Parks and Wildlife. Murdoch University, Perth, Western Australia. 537 pp. http://researchrepository.murdoch.edu.au/id/eprint/40114/.

23. Tweedley, J.R., Loneragan, N.R., Crisp, J.A., Poh, B. Broadley, A.D., Bennett, A.L., Hodson, K.P., Trayler, K.M., Jenkins, G.I., Chaplin, J.A. (2017). Stock enhancement of the Western School Prawn (Metapenaeus dalli) in the Swan-Canning Estuary; evaluating recruitment limitation, environment and release strategies. Report for the Fisheries Research and Development Corporation. Murdoch University, Perth, Western Australia. 546 pp. http://researchrepository.murdoch.edu.au/id/eprint/40114/.

24. Tweedley, J.R., Campbell, T.I., Loneragan, N.R. & Johnston, D. (2017). Aspects of the biology and husbandry of portunid crabs relevant to aquaculture-based enhancement and fisheries management. Report for the Recreational Fishing Initiatives Fund. Murdoch University, Perth, Western Australia. 135 pp. http://researchrepository.murdoch.edu.au/id/eprint/40403/.

25. Jenkins, G.I., Michael, R. & Tweedley, J.R. (2017). Identifying future restocking options for Blue Swimmer Crabs (Portunus armatus). Report for the Recreational Fishing Initiatives Fund. South Metropolitan TAFE, Fremantle, Western Australia. 30 pp. http://researchrepository.murdoch.edu.au/id/eprint/40142/.

26. Jenkins, G.I., Tweedley, J.R. & Trayler, K.M. (2017). Re-establishing recreational prawning in the Swan-Canning Estuary. Report for the Recreational Fishing Initiatives Fund. Report for Recfishwest. Western Australian Fish Foundation, Perth, Western Australia. 126 pp. Available from http://researchrepository.murdoch.edu.au/id/eprint/36812/.

27. Beatty, S.J., Whitty, J., Allen, M., Tweedley, J.R. & Morgan, D. (2016). Movement and abundance of key fishes in the Vasse-Wonnerup Estuary following a substantial fish kill. Report for the State Natural Resource Management Program, Western Australia. Murdoch University, Perth, Western Australia. 11 pp. http://researchrepository.murdoch.edu.au/id/eprint/37072/.

28. Tweedley, J.R., Cottingham, A. & Beatty, S.J. (2016). Monitoring the recruitment success of Black Bream in the Vasse-Wonnerup two years after a large fish kill. Report for the Department of Water, Western Australia. Murdoch University, Perth, Western Australia. 23 pp. Available from http://researchrepository.murdoch.edu.au/31196/.

29. Stagles, I., Jenkins, J.I. & Tweedley, J.R. (2016). Restocking Mulloway into the Swan River or Geraldton area. Report for the Recreational Fishing Initiatives Fund. Western Australian Fish Foundation, Perth, Western Australia. 28 pp. http://researchrepository.murdoch.edu.au/id/eprint/39130/.

30. Tweedley, J.R., Florisson, J.H., Bateman, T.A., Chaplin, J.A. & Gill, H.S. (2016). Can recreational fishers provide a cost effective means for monitoring artificial reefs? Report for the Recreational Fishing Initiatives Fund. Murdoch University, Perth, Western Australia. 208 pp. DOI: 10.13140/RG.2.2.22779.92963. Available from http://researchrepository.murdoch.edu.au/34070/.

31. Tweedley, J.R. & Chaplin, J.A. (2015). The application, needs, costs and benefits of habitat enhancement structures in Western Australia. III Bibliographic analysis of scientific literature on habitat enhancement structures. Report for Recfishwest and the Fisheries Research and Development Cooperation. Murdoch University, Perth, Western Australia. 290 pp.

32. Bateman, T.A., Tweedley, J.R. & Chaplin, J.A. (2015). The application, needs, costs and benefits of habitat enhancement structures in Western Australia. II Trends in artificial reef construction, design and management in Australia. Report for Recfishwest and the Fisheries Research and Development Cooperation. Murdoch University, Perth, Western Australia. 24 pp. http://researchrepository.murdoch.edu.au/id/eprint/39129/.

33. Surman, C.A., Bateman, T.A., Tweedley, J.R. & Nicholson, L.W. (2015). The application, needs, costs and benefits of habitat enhancement structures in Western Australia. I Review of design, application and deployment of habitat enhancement structures. Report for Recfishwest and the Fisheries Research and Development Cooperation. Murdoch University, Perth, Western Australia. 131 pp. http://researchrepository.murdoch.edu.au/id/eprint/39128/.

34. Cottingham, A., Tweedley, J.R., Green, A.T., Green, T.A., Beatty, S.J. & Potter, I.C. (2015). Key biological information for the management of Black Bream in the Vasse-Wonnerup. Report for Geographe Bay Catchment Council. Murdoch University, Perth, Western Australia. 40 pp. Available from http://researchrepository.murdoch.edu.au/29346/.

35. Jenkins, G.I., Trayler, K.M., Tweedley, J.R., Stagles, I. & Loneragan, N.R. (2015). Production and release of Western School Prawns into the Swan-Canning River park over a three year period to enhance the community values of the recreational prawn fishery. Report for the Recreational Fishing Initiatives Fund. Western Australian Fish Foundation, Perth, Western Australia. 192 pp. http://researchrepository.murdoch.edu.au/id/eprint/39127/.

36. Valesini, F.J. & Tweedley, J.R. (2015). Effect of the Becher Point boat ramp on the food resources of Little Penguins on Penguin Island. Report for the Department of Parks and Wildlife. Murdoch University, Perth, Western Australia. 121 pp. http://researchrepository.murdoch.edu.au/id/eprint/39126/.

37. Hallett, C.S. & Tweedley, J.R. (2015). Assessment of the condition of the Swan Canning Estuary in 2015, based on the Fish Community Indices of estuarine condition. Report for the Swan River Trust, Murdoch University, Perth, Western Australia. 37 pp. Available from http://researchrepository.murdoch.edu.au/27495/.

38. Tweedley, J.R. & Hallett, C.S. (2014). Monitoring the effects of artificial oxygenation on biota in the Swan-Canning Estuary, Western Australia. Report for the Swan River Trust. Murdoch University, Perth, Western Australia. 72pp. Available from http://www.swanrivertrust.wa.gov.au/the-river-system/tackling-the-issues/addressing-water-quality-and-ecological-health/oxygenation.

39. Beatty, S.J., Tweedley, J.R., Lymbery, A.J., Keleher, J., Allen, M.G. & Morgan, D.L. (2014). Introduced and native fishes in the Vasse‐Wonnerup Ramsar Wetland and its rivers. Report to the Australian Government through its Caring for our Country Program. Report for Project Steering Committee. Murdoch University, Perth, Western Australia. 139 pp. Available from http://www.freshwaterfishgroup.com/resources/Vasse%20Wonnerup%20Fishes%20Scientific%20Report%20FFGFHU%20CFFR%20Final%202014.pdf.

40. Hallett, C.S. & Tweedley, J.R. (2014). Assessment of the condition of the Swan Canning Estuary in 2014, based on the Fish Community Indices of estuarine condition. Report for the Swan River Trust, Murdoch University, Perth, Western Australia. 30 pp. Available from http://researchrepository.murdoch.edu.au/23386/.

41. Tweedley, J.R., Keleher, J., Cottingham, A., Beatty, S.J. & Lymbery, A. (2014). The fish fauna of the Vasse-Wonnerup and the impact of a substantial fish kill event. Report for Geographe Bay Catchment Council. Murdoch University, Perth, Western Australia. 113 pp. Available from http://researchrepository.murdoch.edu.au/28576/.

42. Chambers, J.M., Tweedley, J.R., Clarke, A. & Paice, R. (2013). Snapshot survey of the distribution and abundance of the macrophytes, macroalgae, phytoplankton and macroinvertebrates of the Vasse-Wonnerup Lagoons January, 2012. Report for Geographe Bay Catchment Council. Murdoch University, Perth, Western Australia. 48 pp. http://researchrepository.murdoch.edu.au/id/eprint/39125/.

43. Tweedley, J.R., Beatty, S.J., & Lymbery, A.J. (2013). Control of introduced fish and crayfish in the Vasse-Wonnerup Ramsar Wetland: Final MERI report. Report for Caring for our Country. Murdoch University, Perth, Western Australia. 41 pp. http://researchrepository.murdoch.edu.au/id/eprint/22303/.

44. Tweedley, J.R. Beatty, S.J., Allen, M. & Lymbery, A.J. (2013). Increasing community awareness of feral fish in the Vasse-Wonnerup Wetland. Report for Coastwest. Murdoch University, Perth, Western Australia. 29 pp. http://researchrepository.murdoch.edu.au/id/eprint/23849/.

45. Tweedley, J.R., Chambers, J.M. & Paice, R. (2013). Sediment accumulation and resuspension in the Vasse-Wonnerup Wetlands and its relationship to internal nutrient cycling. Report for the South West Catchments Council. Murdoch University, Perth, Western Australia. 54 pp. Available from http://researchrepository.murdoch.edu.au/23851/.

46. Tweedley, J.R., Hallett, C.S. & Chambers, J.M. (2012). A baseline survey of the fish fauna of the highly eutrophic Vasse and Wonnerup estuaries. Report for the South West Catchments Council. Murdoch University, Perth, Western Australia. 20 pp. Available from http://researchrepository.murdoch.edu.au/23795/1/SWCC_Vasse_Fish_Report.pdf.

47. Hesp, S.A., Tweedley, J.R., McAuley, R., Tink, C.J., Campbell, R.A., Chuwen, B.M. & Hall, N.J. (2012).  Informing risk assessment through estimating interaction rates between Australian sea lions and Western Australia’s temperate demersal gillnet fisheries. Report for Fisheries Research and Development Corporation. Murdoch University, Perth, Western Australia. 82 pp. Available from http://www.frdc.com.au/documentlibrary/finalreports/2009-096-DLD.pdf.

48. Tweedley, J.R., Chambers, J.M. & Potter, I.C. (2011). The benthic macroinvertebrate faunas of the Vasse-Wonnerup Estuary as indicators of environmental degradation. Report for the South West Catchments Council. Murdoch University, Perth, Western Australia. 41pp. Available from http://researchrepository.murdoch.edu.au/23850/.

49. Veale, L., Coulson, P., Hoeksema, S., Tweedley, J., Hall, N. & Potter, I. (2010). The characteristics of the fish and crab assemblages of the Leschenault Estuary. Inter-period comparisons and their management implications. Report for the South West Development Commission. Murdoch University, Perth, Western Australia. 58 pp. Available from http://researchrepository.murdoch.edu.au/9387/.

50. Valesini, F.J., Coen, N.J., Wildsmith, M.D., Hourston, M., Tweedley, J.R., Hallett, C.S., Linke, T.E. & Potter, I.C. (2009) Relationships between fish faunas and habitat type in south-western Australian estuaries. Project 2004/045. Report for Fisheries Research and Development Corporation. Murdoch University, Perth, Western Australia. 486 pp. Available from http://www.frdc.com.au/documentlibrary/finalreports/2004-045-DLD.pdf.

51. Tweedley, J.R. & Valesini, F.J. (2008). Inter-relationships between benthic macroinvertebrates and habitat types in Broke Inlet, south-western Australia. Report to the Ernest Hodgkin Trust for Estuary Education and Research. Murdoch University, Perth, Western Australia. 34 pp. Available from http://researchrepository.murdoch.edu.au/9386/.