Assistant Professor
Rieucau lab website

Education · Research Interests · Current Projects · Selected Publications


  • Ph.D., 2010, Biology
    Université du Québec à Montréal
  • M.S., 2005, Biology
    Université du Québec à Montréal
  • M.S., 2002, Populations and Ecosystems Biology
    Université Paul Sabatier
  • B.A., 2001, Organisms and Populations Biology
    Université Paul Sabatier


  • Behavioral ecology in marine and estuarine environments
  • Fish collective behavior
  • Ecology, evolution, and mechanisms of gregarious behavior
  • Predator-prey interactions
  • Ecology of fear
  • Behavioral responses to environmental and anthropogenic perturbations
  • Marine acoustics
  • Use of computer-generated animations and video playback in the study of behavior


  • Functions and mechanisms of fish collective behavior in dynamic environments
  • Information transfer in fish schools
  • Role of behavior in structuring nektonic communities and trophic interactions
  • Mapping the “Landscape of Fear” in marine and coastal ecosystems
  • Use of behavioral responses of aquatic organisms as bioindicators in impact studies
  • Forecasting aggregative dynamics of ecologically and economically important species using behavior-based models


  • Johnsen E., Rieucau G., Ona E. & Skaret G. Collective structures anchor massive lesser sandeel schools to the seabed increasing vulnerability to fishery. Marine Ecology Progress Series. 573: 229-236.
  • Handegard N.O., Holmin A.J. & Rieucau G. 2017. Method to observe large scale behavioural waves spanning entire fish schools using 4D sonar. ICES Journal of Marine Science. 4: 804-812.
  • Rieucau G., Holmin A.J. *, Castillo J.C., Couzin, I.D. & Handegard N.O. 2016. School-level structural and dynamic adjustements to risk promote information transfer and collective evasion in herring. Animal Behaviour. 117: 69-78.
  • Rieucau G., Doksæter Sivle L. & Handegard N.O. 2016. Schooling herring perform stronger collective anti-predator reactions when previously exposed to killer whales calls. Behavioral Ecology. 27: 538-544.
  • Rieucau G., Boswell K.M, Kimball M.E, Diaz G. **& Allen D.M. 2015. Tidal and diel variations in abundance and schooling behavior of estuarine fish within an intertidal salt marsh creek. Hydrobiologia. 753: 149-162.
  • Rieucau G., Fernö A., Ioannou C.C. & Handegard N.O. 2015. Towards a firmer explanation of large shoal formation, maintenance and collective reactions in marine fish. Reviews in Fish Biology and Fisheries. 25:25-37.
  • Rieucau G., De Robertis A., Boswell K.M. & Handegard N.O. 2014. School density affects the strength of collective antipredatory responses in wild-caught herring (Clupea harengus): A simulated predator encounter experiment. Journal of Fish Biology. 85: 1650-1664.
  • Rieucau G., Boswell K.M., De Robertis A., Macaulay G.J. & Handegard N.O. 2014. Experimental evidence of threat-sensitive collective avoidance responses in a large wild-caught herring school. PLoS ONE. 9: e86726.
  • Rieucau G. & Giraldeau L.A. 2011. Exploring the costs and benefits of social information use: an appraisal of current experimental evidence. Philosophical Transactions of the Royal Society B: Biological Sciences. 366: 949-957.