Associate Professor Paul Humphries' research interests mostly relate to rivers and their ecology. While he has worked mostly on fish-related topics, he also has an interest in macroinvertebrates and macrophytes. Most of his work in the last 20 years has been on the relationship between riverine biota and flow. Since 1996, he has focussed on aspects of the spawning and early life history of freshwater fishes. He has also carried out and collaborated on several projects on the dispersal of the young stages of fish and shrimp in rivers both in Australia and Europe. He is also passionately interested in historical ecology, especially in the Murray-Darling Basin, and is currently collaborating on several palaeoecological and zooarchaeological projects, which aim to look at past faunas and ecosystems, to aid conservation and management of our rivers. He co-edited with Keith Walker, 'Ecology of Australian Freshwater Fishes', published by CSIRO Publishing in 2013.
Paul is the leader of the Fish Ecology Collaborative Research Unit
Bachelor of Science (Hons), Monash University, Zoology Department, 1983
Master of Science, University of Tasmania, Department of Zoology, 1987
PhD, Murdoch University, School of Biological and Environmental Sciences (Received Murdoch University Postgraduate Research Scholarship), 1991
Peer Reviewed Papers
Humphries, P., McCasker, N., King, A., Kopf, R.K., Price, A., Stoffels, R. & Zampatti B. (2019) Riverscape recruitment: a conceptual synthesis of fish recruitment processes in rivers. Canadian Journal of Fisheries and Aquatic Resources.
Kopf, R. K., Humphries, P., Bond, N. R., Sims, N. C., Watts, R. J., Thompson, R. M., Hladyz, S., Koehn, J.D., King, A.J., McCasker, N., McDonald, S. (2018) Macroecology of fish community biomass-size structure: effects of invasive species and river regulation. Canadian Journal of Fisheries and Aquatic Sciences. doi:10.1139/cjfas-2017-0544
Kopf, R.K., Nimmo, D.G., Humphries, P., Baumgartner, L., Bode, M., Bond, N., Byrom, A.E., Cucherousset, J., Keller, R.P, King, A.J., McGinness, H., Moyle, P.B., & Olden, J.D. (2017) Confronting the risks of large-scale invasive species control. Nature Ecology and Evolution. (1) 0172, 1-4.
Humphries, P., Kumar, S. and Lake, P.S. (2015). Engineered artificial flooding: more questions than answers. Frontiers in Ecology and the Environment, 13: 242-243.
Kopf R.K., Finlayson C.M, Humphries P., Hladyz S. and Sims N. (2015) Anthropocene baselines: assessing change and managing biodiversity in human-dominated aquatic ecosystems. BioScience 8: 798-811
Winemiller, K.O., Humphries, P. and Pusey, B. (2015) Protecting apex predators. In: Conservation of Freshwater Fishes (G. Closs, M. Krkosek and J. Olden, Eds), Cambridge University Press. Pp. 361-398.
McCasker, N., Humphries, P., Meredith, S., Klomp, N. (2014) Contrasting Patterns of Larval Mortality in Two Sympatric Riverine Fish Species: A Test of the Critical Period Hypothesis. PLoS ONE 9(10): e109317. http://www.plosone.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0109317&representation=PDF
Humphries, P., Keckeis, H. and Finlayson, B. (2014). The river wave concept: integrating river ecosystem models. BioScience. doi:10.1093/biosci/biu130
Kopf, S., Humphries, P. and Watts, R (2014). Ontogeny of critical and prolonged swimming performance for the larvae of six species of Australian freshwater fish. Journal of Fish Biology. 84: 1820-1841.
Lechner, A., Keckeis, H., Schludermann, E., Humphries, P., McCasker, N. and Tritthart, M. (2014). Hydraulic forces impact larval fish drift in the free flowing section of a large European river. Ecohydrology 7: 648-658.
Lechner, A., Keckeis, H., Schludermann, E.,Loisl, F., Humphries, P., Glas, M., Tritthart, M. and Habersack, H. (2013). Shoreline configurations affect dispersal patterns of fish larvae in a large river. ICES Journal of Marine Science: Journal du Conseil. doi: 10.1093/icesjms/fst139
Whiterod, N., Meredith, S. and Humphries, P. Refining the activity component of a fish bioenergetics model to account for swimming costs. Marine and Freshwater Behaviour and Physiology, DOI: 10.1080/10236244.2013.819155.
Humphries. P., Richardson, A., Wilson, G., & Ellison, T. (2013) River regulation and recruitment in a protracted-spawning riverine fish. Ecological Applications, 23(1), 2013, pp. 208–225.
Price, A.E., Humphries, P., Gawne, B. & Thoms, M.C. (2013) Effects of discharge regulation on slackwater characteristics at multiple scales in a lowland river. Canadian Journal of Fisheries and Aquatic Sciences, 2013, 70(2): 253-262.
Winemiller, K.O., Humphries, P. and Pusey, B. (2016) Protecting apex predators. In: Conservation of Freshwater Fishes (G. Closs, M. Krkosek and J. Olden, Eds), Cambridge University Press.
King, A.K., Humphries, P. and McCasker, N.G. (2013). Reproduction and Early Life History. In: Humphries, P. and Walker, K. (eds.) The Ecology of Australian Freshwater Fishes. CSIRO Publishing, Melbourne. pp. 159-192.
Humphries, P. and Walker, K. (2013). Looking Ahead. In: Humphries, P. and Walker, K. (eds.) The Ecology of Australian Freshwater Fishes. CSIRO Publishing, Melbourne. pp. 317-325.
Humphries, P & Walker, K. (eds) (2013) Ecology of Australian Freshwater Fishes, CSIRO Publishing. http://www.publish.csiro.au/nid/21/pid/6515.htm
Humphries, P., Kopf, S., Kaminskas,T., Keckeis, H., McCasker, N., Stoffels, R., Bond, N. & Watts, R. (2015) Integrating life history theory and dispersal in riverine fishes. Presented at the 39th Annual Larval Fish Conference, Vienna, July 12-17Humphries, P. and Walker, K. (2013). The Ecology of Australian Freshwater Fishes: An Introduction. In: Humphries, P. and Walker, K. (eds.)
The Ecology of Australian Freshwater Fishes. CSIRO Publishing, Melbourne. pp. 1-23.
Hicks,T., Kopf, R.K. & Humphries, P. (2015) Fecundity and egg quality of dusky flathead (Platycephalus fuscus) in East Gippsland, Victoria, ILWS Report No 94
Humphries, P. & Kopf, R.K. (2019) Memo to the environment minister: a river does need all its water. The Conversation, June 20 https://theconversation.com/memo-to-the-environment-minister-a-river-does-need-all-its-water-119089
Kopf, R.K., Nimmo, D., Humphries, P. (2017) Widespread invasive species control is a risky business. The Conversation https://theconversation.com/widespread-invasive-species-control-is-a-risky-business-77460?
Kopf, R.K., Humphries. P., McCasker, N. (2014) Why are there no (true) freshwater protected areas in Australia?" The Conversation. https://theconversation.com/why-are-there-no-true-freshwater-protected-areas-in-australia-32966
Kingsford, R.T., Mac Nally, R. King, A.J., Walker, K.F., Bino, G., Thompson, R., Wassens, S. & Humphries, P. (2015) A commentary on Long-term ecological trends of flow-dependent ecosystems in a major regulated river basin, by Matthew J. Colloff, Peter Caley, Neil Saintilan, Carmel A. Pollino and Neville D. Crossman. Marine and Freshwater Research, 66:9708-980.
Evaluation of survival behaviour of fish to inform re-stocking programs. Freire, R., Humphries, P., Rogers, L. (PhD student), Westaway, C. (NSW Fisheries) & Kopf, K. (Charles Darwin University). (2020-2021) Department of Primary Industries, Recreational Fishing Trust. $48,880.
Environmental water requirements of freshwater mussels in the northern basin. McCasker, N., Humphries, P. (2020) CEWO, $20,000. Project led by Griffith University.
Stuffed Murray Cod in Pubs. Humphries, P., McCasker, N., Kopf, R. & O'Connell, M. (PhD student), (2017-2020) MDBA Scholarship grant, $45,000
Barmah-Millewa midden fish study Living Murray Program of the Murray- Darling Basin Authority. Humphries, P., and the Yorta Yorta Nation (2010-ongoing) Project details PDF
Research activities for the Fish theme of the Environmental Water Knowledge Research (EWKR) project. Contract variation. Humphries, P. in collaboration with MDRFC (2017-2019) CEWO via MDRFC, $206,587.
Conceptualisation of flow-recruitment relationships for riverine fisheries. Foundation activities for the Fish Theme of Environmental Water Knowledge Research (EWKR). (2016) Humphries, P., Mc Casker, N., & Kopf, R.K. MDFRC, $117,732
Synthesis of flow-recruitment relationships for riverine fishes, Humphries, P., King, A. (CDU), Kopf, K., McCasker, N. & Stoffels, R. (2016) MDRFC, $82,028 Project details
Understanding historic fish populations in the Murray River, Humphries, P. (2015-2016), Murray Darling Basin Authority, $27,273
VEFMAP Fish data analysis-Part B: Analysis on existing fish data (2008-2014). Humphries, P., Kopf, R.K. & McCasker, N. (2015) Goulburn Broken CMA, $9,800
Fecundity and egg quality of dusky flathead in East Gippsland, Kopf, RK & Humphries, P. (2014-2105) Victoria. Department of Environment and Primary Industries. $49,639 Report
Carbon Dating of Core Samples from Aboriginal Middens in the Barmah Region of the Murray River, Humphries, P. (2013) MDBA, $27,300
Where have all the fish gone, and can they come back? Humphries, P., McCasker, N., and Kopf, K. (2012-2014)Australian Centre for Ecological Analysis and Synthesis (ACEAS). Project details
Modelling dispersal patterns of fish larvae in a large river. Project team: Hubert Keckeis (University of Vienna), Michael Tritthart, Hubert Habersack (University of Natural Resources and Life Sciences) and Paul Humphries (2011-13), Austrian Science Fund Project details