Skip to main content
Charles Sturt University
Charles Sturt University

Dr R. Keller Kopf

Photo of Dr R. Keller Kopf

Dr Keller Kopf has research interests in freshwater and marine fish ecology, fisheries science and organismal biology. He is currently undertaking a postdoctoral research fellowship helping to establish a Fish Ecology Collaborative Research Unit at Charles Sturt University.  He has worked on ecological responses to altered river flow regimes in the Murray-Darling Basin and maintains active research on life-history and population biology of open ocean fishes. 

His research integrates fundamental biology and ecology with applied aquatic biodiversity conservation and natural resource management.  Keller is interested in how environmental and anthropogenic factors shape aquatic organisms, populations and ecosystems.  This work has stimulated a recent interest in other research areas including macroecology, invasive species, body size scaling relationships and human-induced changes to biodiversity reference points.

Prospective Honours, Masters, or PhD students interested in any of the above topics are welcome to contact him.

Keller is a member of the  Fish Ecology Collaborative Research Unit (FECRU)


BSc University of Nebraska-Lincoln, USA

MSc Massey University, New Zealand

PhD Charles Sturt University, Australia


Strategic Research Areas

  • Sustainable Water

Selected Publications

Peer Reviewed Publications

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 ecosystemsBioScience 8: 798-811

Small, K., Kopf, R.K., Watts, R.J., Howitt, J. (2014) Hypoxia, blackwater and fish kills: experimental lethal oxygen thresholds in juvenile predatory lowland river fishes. PLOS ONE 9(4), e94524 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0094524

Kopf, R.K., Davie, P.S., Bromhead D.B. and Young, J. (2012) Reproductive biology and spatiotemporal dynamics of spawning in southwest Pacific striped marlin Kajikia audax. Journal of Fish Biology 81: 1834-1858.

McKenzie, J., B. Parsons, A.C. Seitz, R.K. Kopf, M. Mesa, and Q. Phelps. Editors. (2012) Advances in fish tagging and marking technology. American Fisheries Society Book. Symposium 76, Bethesda, Maryland. Pp 1-560.

Kopf R.K. (2012) Forward to Chemical and Biological Markers Section. Pages 387 – 388 in McKenzie, J., B. Parsons, A.C. Seitz, R.K. Kopf, M. Mesa, and Q. Phelps. Editors. (2012) Advances in fish Tagging and marking technology. American Fisheries Society Book. Symposium 76, Bethesda, Maryland. Pp 1-560.

Kopf  R.K.,  Davie P.S.; Pepperell J., Bromhead D. (2011) Age and growth of striped marlin (Kajikia audax) in the southwest Pacific Ocean.  ICES Journal of Marine Science.

Kopf  R.K. and Davie P.S.  (2011) Fin-spine selection and section level influence potential age estimates of striped marlin, Kajikia audax. Copeia, 1: 153-260.

Pepperell, J.G., R.K. Kopf and B.E. Malseed (2011). Use of historic fisheries data to determine trends in relative abundance and body size of sailfish, Istiophorus platypterus, off northwestern Australia. Journal of the Royal Society of Western Australia, 94(2): 333-344.

Technical Reports

Watts, R.J., Thiem, J., Howitt, J., McCasker, N., Kopf, R., Healy S and Abell, J. (2016). Long term intervention monitoring project, Edward-Wakool River System Selected Area, Progress Report number 7, March 2016. Prepared for the Commonwealth Environmental Water Office.

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

Watts, R.J., McCasker, N., Thiem, J., Howitt, J.A., Grace, M., Kopf, R.K., Healy, S., Bond, N. (2015). Commonwealth Environmental Water Office Long Term Intervention Monitoring Project: Edward-Wakool Selected Area Synthesis Report, 2014-15.  Prepared for Commonwealth Environmental Water.

 Watts, RJ, Kopf, R.K., Hladyz, S., Grace, M., Thompson, R., McCasker, N., Wassens, S., Howitt, J.A., and Conallin, J. (2012). Monitoring of ecosystem responses to the delivery of environmental water in the Edward-Wakool river system, 2011-2012.Report 1. Prepared for Commonwealth Environmental Water Office

 Watts, RJ., McCasker, N., Grace, M., Howitt, JA., Kopf, R.K., Dyer, J., Conallin, A.(2013). Monitoring of ecosystem responses to the delivery of environmental water in the Edward-Wakool system, 2012/2013. Commonwealth Environmental Water Holder.

Watts, RJ., Kopf, R.K., Hladyz, S., Grace, M., Thompson, R., McCasker, N., Wassens, S., Howitt, J.A., and Conallin, J.(2012). Monitoring of ecosystem responses to the delivery of environmental water in the Edward-Wakool system, 2011/2012. Commonwealth Environmental Water Holder.

Holdsworth J. and Kopf R.(2011) Characterisation of striped marlin fisheries and biology in New Zealand and wider southwest Pacific Ocean. Ministry of Fisheries, Fisheries Assessment Report (2011/22).

Insert New Container


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

Long Term Intervention Monitoring project - Edward Wakool Selected Area. Stage 2. Watts,R., McCasker,N., Howitt,J., Kopf,K with NSW Department of Primary Industries (Fisheries), Monash University (Water Studies Centre), Griffith University, NSW OEH, and Murray LLS. (2014-2019) CEWO, $3.36M Project Webpage

Monitoring the ecological response of Commonwealth environmental water delivered in 2013-14 to the Edward-Wakool river system. SEWPAC, Watts, R., McCasker, N., Kopf, K., & Howitt, J. (2013-2014) Partners Department of Primary Industries – NSW Fisheries, Murray Catchment Management Authority, Monash University, and NSW Office of Environment and Heritage. $753,656 Project details

Where have all the fish gone, and can they come back? Australian Centre for Ecological Analysis and Synthesis (ACEAS). Humphries,P., McCasker,N., and Kopf,K. (2012-2014) in collaboration with researchers from Griffith University, CSIRO, Vic Department of Sustainability and Environment,  NSW Department of Primary Industries, Monash University, Charles Darwin University, Murray Darling Basin Authority  Project details 

https://theconversation.com/why-are-there-no-true-freshwater-protected-areas-in-australia-32966" to Why are there no (true) freshwater protected areas in Australia?" The Conversation. Kopf, RK, Humphries P, McCasker N"

Invasive species and river regulation turn fish community food webs upside down. ILWS Research Centre Fellowship.  Kopf RK, Humphries P, McCasker N et al.