Kevin J. Hedges

Image Hedges, Kevin
Research Scientist

Arctic marine fish ecology, marine community composition and dynamics, and stock assessments

Current research and/or projects

I am interested in understanding the population and community ecology of aquatic organisms, especially fishes. My research typically explores population and community structure, implementing field surveys, field experiments, lab experiments and computer modeling, as appropriate. General topics of interest include anthropogenic interactions and effects, predator-prey dynamics, and environmental effects on animal behaviour and community composition.

Research and/or project statements

Professional activities / interests

  • International Council for the Exploration of the Sea Working Group on Integrated Ecosystem Assessment for the Central Arctic Ocean
  • Willing to mentor others in DFO

Education and awards

Ph.D. Zoology, University of Manitoba, 2007

M.Sc. Biology, University of Windsor, 2002

B.Sc. Ecology and Evolution, University of Western Ontario, 1999

Key publications

Tallman, R.F., Ferguson, S.H., Harris, L.N., Hedges, K.J., Howland, K.J., Hussey, N.E., Marcoux, M., Matthews, C.J.D., Martin, Z.A. and Moore, J-S. (2019) Migration, Dispersal, and Gene Flow of Harvested Aquatic Species in the Canadian Arctic. In Biological Research in Aquatic Science. IntechOpen. DOI: 10.5772/intechopen.85902


Edwards, J.E., Hiltz, E., Broell, F., Bushnell, P.G., Campana, S.E., Christiansen, J.S., Devine, B.M., Gallant, J.J., Hedges, K.J., MacNeil, M.A., McMeans, B.C., Nielsen, J., Præbel, K., Skomal, G.B., Steffensen, J.F., Walter, R.P., Watanabe, Y.Y., VanderZwaag, D.L., Hussey, N.E. (2019) Advancing Research for the Management of Long-Lived Species: A Case Study on the Greenland Shark. Frontiers in Marine Science. 6. p87. DOI=10.3389/fmars.2019.00087. ISSN=2296-7745


Yurkowski, D.J., Auger‐Méthé, M., Mallory, M.L., Wong, S.N.P., Gilchrist, G., Derocher, A.E., Richardson, E., Lunn, N.J., Hussey, N.E., Marcoux, M., Togunov, R.R., Fisk, A.T., Harwood, L.A., Dietz, R., Rosing‐Asvid, A., Born, E.W., Mosbech, A., Fort, J., Grémillet, D., Loseto, L., Richard, P.R., Iacozza, J., Jean‐Gagnon, F., Brown, T.M., Westdal, K.H., Orr, J., LeBlanc, B., Hedges, K.J., Treble, M.A., Kessel, S.T., Blanchfield, P.J., Davis, S., Maftei, M., Spencer, N., McFarlane‐Tranquilla, L., Montevecchi, W.A., Bartzen, B., Dickson, L., Anderson, C., Ferguson, S.H. (2018) Abundance and species diversity hotspots of tracked marine predators across the North American Arctic. Divers Distrib. 2019; 25: 328– 345.


Wheeland, L., Robert, D., Geoffroy, M., Hedges, K.J., Treble, M.A., Janjua, M.Y., Kennedy, J., Bonnel, C. and Fortier, L. (2018) Chapter 18 - Commercial Fisheries. In Bell, T. and Brown, T.M. 2018. From Science to Policy in the Eastern Canadian Arctic: An Integrated Regional Impact Study (IRIS) of Climate Change and Moderization. ArcticNet, Quebec City, 560 pp.


Brooks, J.L., Chapman, J.M., Barkley, A., Kessel, S.T., Hussey, N.E., Hinch, S.G., Patterson, D.A., Hedges, K.J., Cooke, S., Fisk, A., Gruber, S. and Nguyen, V.M. (2018) Biotelemetry informing management: case studies exploring successful integration of biotelemetry data into fisheries and habitat management. Canadian Journal of Fisheries and Aquatic Sciences. 76(7): 1238-1252,


Grant, S.M., Sullivan, R. and Hedges, K.J. (2018) Greenland shark (Somniosus microcephalus) feeding behavior on static fishing gear, effect of SMART (Selective Magnetic and Repellent-Treated) hook deterrent technology, and factors influencing entanglement in bottom longlines. PeerJ. 6:e4751.


Koen-Alonso, M., Favaro, C., Ollerhead, N., Benoît, H., Bourdages, H., Sainte-Marie, B., Treble, M., Hedges, K., Kenchington, E., Lirette, C., King, M., Coffen-Smout, S., and J. Murillo (2018)Analysis of the overlap between fishing effort and Significant Benthic Areas in Canada's Atlantic and Eastern Arctic marine waters. DFO Can. Sci. Advis. Sec. Res. Doc. 2018/015. xvii + 270 p.


Hussey, N.E., Orr J., Fisk, A.T., Hedges, K.J., Ferguson, S. and Barkley, A.N. (2018) Mark report satellite tags (mrPATs) to detail large-scale horizontal movements of deep water species: First results for the Greenland shark (Somniosus microcephalus). Deep Sea Research: Part 1: Oceanographic Research Papers. 134: 32-40


Barkley, A. N., Fisk, A. T., Hedges, K. J., Treble, M. A. and Hussey, N. E. (2018) Transient movements of a deep-water flatfish in coastal waters: implications of inshore-offshore connectivity for fisheries management. Journal of Applied Ecology. Accepted Author Manuscript. doi:10.1111/1365-2664.13079


Walter, R.P., Roy, D., Hussey, N.E., Stelbrink, B., Kovacs, K.M., Lydersen, C., McMeans, B. C., Svavarsson, J., Kessel, S.T., Porsmoguer, S. B.,  Wildes, S., Tribuzio, C. A., Campana, S.E., Petersen, S.D., Grubbs, R.D., Heath, D.D., Hedges, K.J., Fisk, A.T. (2017) Origins of the Greenland shark (Somniosus microcephalus): Impacts of ice-olation and introgression. Ecology and Evolution. 7(19): 8113-8125. doi: 10.1002/ece3.3325


Hedges, K.J., MacPhee, S., Valtýsson, H.Þ., Johannesen, E., Mecklenburg, C.W. (2017) Marine fishes. In CAFF. State of the Arctic Marine Biodiversity Report. Conservation of Arctic Flora and Fauna International Secretariat, Akureyri, Iceland. 978-9935-431-63-9


Hussey, N.E., Hedges, K.J., Barkley, A.N., Treble, M.A., Peklova, I., Webber, D. M., Ferguson, S.H., Yurkowski, D.J., Kessel, S.T., Bedard, J.M. and Fisk, A.T. (2017) Movements of a deep-water fish: establishing marine fisheries management boundaries in coastal Arctic waters. Ecological Applications, 27(3): 687–704. doi:10.1002/eap.1485


Barkley, A.N., Cooke, S.J., Fisk, A.T. Hedges, K. and Hussey, N.E. (2017) Capture-induced stress in deep-water arctic fish species. Polar Biology. 40(1): 213-220.


2017 Schimnowski, O., Chmelnitsky, E.,  Hedges, K. and Loseto, L. (2017) Potential monitoring indicators, protocols and strategies for the Anguniaqvia Niqiqyuam Area of Interest. DFO Can. Sci. Advis. Sec. Res. Doc. 2017/003. v+23 p.


Simpson, M.R., Gauthier, J., Benoît, H.P., MacDonald, D., Hedges, K., Collins, R., Mello, L., and Miri, C. (2016) A pre-COSEWIC assessment of the Common Lumpfish (Cyclopterus lumpus, Linnaeus 1758) in Canadian Atlantic and Arctic waters. DFO Can. Sci. Advis. Sec. Res. Doc. 2016/068. v + 135 p.


Siferd, T., Martin, K., Hedges, K., Skanes, K. and Stansbury, D. (2016) Update of stock status indicators for northern shrimp, Pandalus borealis, and striped shrimp, Pandalus montagui, in the western and eastern assessment zones for 2016. Sci. Resp. 2016/006. 25 p.


Hedges, K. and Charles, C. (2016) Proceedings for the regional peer review of the Great Slave Lake stock assessment approach for sustainable fisheries development; April 25-26, 2013. DFO Can. Sci. Advis. Sec. Proceed. Ser. 2016/013.


Tallman, R.F., Hedges, K.J., Martin, Z., Janjua, M.Y., VanGerwen-Toyne, M. and Harris, L.N. (2015) Towards determining optimal harvest levels for Arctic Char, Salvelinus alpinus, in Nunavut: Overview and proposed research plans. Can. Manuscr. Rep. Fish. Aquat. Sci. 2085: vi +85 p.


Steiner, N., Azetsu-Scott, K., Hamilton, J., Hedges, K., Hu, X., Janujua, M., Lavoi, D., Loder, J., Melling, H., Merzouk, A., Perrie W., Scarrat, M., Sou, T. and Tallman, R. (2015) Observed trends and climate projections affecting marine ecosystems in the Canadian arctic. Environmental Reviews. 23(2): 191-239


Hedges, K.J. and Abrahams, M.V.  (2015) Hypoxic refuges, predator-prey interactions and habitat selection by fishes. Journal of Fish Biology. 86: 288-303


Hussey, N.E., Cosandey-Godin, A., Walter, R.P., Hedges, K.J., VanGerwen-Toyne, M., Barkley, A.N., Kessel, S.T. and Fisk, A.T. (2015) Juvenile Greenland sharks Somniosus microcephalus (Bloch & Schneider, 1801) in the Canadian Arctic. Polar Biology 38(4): 493-504


Doniol-Valcroze, T., Gosselin, J.-F., Pike, D., Lawson, J., Asselin, N., Hedges, K. and Ferguson, S. (2015) Abundance estimates of narwhal stocks in the Canadian High Arctic in 2013. DFO Can. Sci. Advis. Sec. Res. Doc. 2015/060.


Doniol-Valcroze, T., Gosselin, J.-F., Pike, D., Lawson, J., Asselin, N., Hedges, K. and Ferguson, S. (2015) Abundance estimate of the Eastern Canada - West Greenland bowhead whale population based on the 2013 High Arctic cetacean survey. DFO Can. Sci. Advis. Sec. Res. Doc. 2015/058.


Collins, R.K., Simpson, M.R., Miri, C.M., Mello, L.G.S., Chabot, D., Hedges, K., Benoît, H., and McIntyre, T.M. (2015) Assessment of northern wolffish, spotted wolffish, and Atlantic wolffish in the Atlantic and Arctic Oceans. DFO Can. Sci. Advis. Sec. Res. Doc. 2014/034.


Pomerleau, C., Watkins, J.M., Archambault, P., Conlan, K., Ferguson, S., Gilchrist, G., Hedges, K., Loseto, L., Lovejoy, C., Michel, C., Nelson, R.J., Poulin, M., Richardson, E., Robertson, G., Stow, J. (2014) Canadian Arctic Marine Biodiversity Plan 2014 – 2017. Canadian component of the Conservation of Arctic Flora and Fauna’s Circumpolar Biodiversity Monitoring Program Arctic Marine Biodiversity Monitoring Plan. CAFF Monitoring Report No. 13.


Hedges, K., Paulic, J. and Grandmaison, V. (2014) Proceedings of the regional science advisory process on monitoring protocols and strategies for the Tarium Niryutait Marine Protected Area (MPA) priority indicators. DFO Can. Sci. Advis. Sec. Proceed. Ser. 2014/042.


Hedges, K. and Cobb, D. (2014) Proceedings of the regional peer review for the evaluation of a Fisheries Risk Assessment Tool (FRAT) for the Mackenzie Gas Pipeline. DFO Can. Sci. Advis. Sec. Proceed. Ser. 2014/013.


Adam, J., Cleator, H., Coffin, D., Duplisea, D., Hedges, K., Hiltz, B., Krohn, M., Martin, K., Power, D., Sévigny, J.-M., Siferd, T., Stephenson, S., Tallman, R., Treble, M., Valentin, A. and Young, R. (2014) Deepwater redfish (Sebastes mentella) in NAFO subarea 0: addendum to the recovery potential assessment of redfish in the northwest Atlantic. DFO Can. Sci. Advis. Sec. Sci. Resp. 2013/026


Peklova, I., Hussey, N.E., Hedges, K.J., Treble, M.A. and Fisk, A.T. (2014) Movement, depth and temperature preferences of an important bycatch species, Arctic skate (Amblyraja hyperborea) in Cumberland Sound, Canadian Arctic. Endangered Species Research. 23:229-240


Grant, S.M., Sullivan, R., Devine, B., and Hedges, K.J. (2014) Reducing Greenland shark bycatch and negative interactions with fishing gear through longline modifications and gear substitution. Centre for Sustainable Aquatic Resources, Fisheries and Marine Institute of Memorial University of Newfoundland, Canada. Technical Report P 419:49 p.


Steiner, N., Azetsu-Scott, K., Galbraith, P., Hamilton, J., Hedges, K., Hu, X., Janjua, M.Y., Lambert, N., Larouche, P., Lavoie, D., Loder, J., Melling, H., Merzouk, A., Myers, P., Perrie, W., Peterson, I., Pettipas, R., Scarratt, M., Sou, T., Starr, M., Tallmann, R.F. and van der Baaren, A. (2013). Climate change assessment in the Arctic Basin Part 1: Trends and projections - A contribution to the Aquatic Climate Change Adaptation Services Program. Can. Tech. Rep. Fish. Aquat. Sci. 3042: xv + 163 pp.


Mueter, F.J, Reist, J.D., Majewski, A.R., Sawatzky, C.D., Christiansen, J.S., Hedges, K.J.,  Coad, B.W., Karamushko, O.V., Lauth, R.R., Lynghammar, A., MacPhee, S.A. and Mecklenburg, C.W. (2013) Marine Fishes of the Arctic. In 2013 Arctic Report Card. +16 pp.


Simpson, M.R., Chabot, D., Hedges, K., Simon, J., Miri, C.M., and Mello, L.G.S. (2013) An update on the biology, population status, distribution, and landings of wolffish (Anarhichus denticulatus, A. minor, and A. lupus) in the Canadian Atlantic and Arctic Oceans. DFO Can. Sci. Advis. Sec. Res. Doc. 2013/089. v + 82 p.


Cleator, H., Hamilton, J., Hedges, K., Howland, K., Lawson, J., Lesage, V., Martin, K., Moggy, D., Ross, B., Stewart, R. and Williston, G. (2012) Science review of Baffinland’s Mary River Project final environmental impact statement. DFO Can. Sci. Advis. Sec. Sci. Resp. 2012/016.


Peklova, I., Hussey, N.E., Hedges, K.J., Treble, M.A. and Fisk, A.T. (2012). Depth and temperature preferences of the deepwater flatfish Greenland halibut Reinhardtius hippoglossoides in an Arctic marine ecosystem. Marine Ecology Progress Series 467:193-205


Hedges, K.J., Koops, M.A., Mandrak, N.E. and Johannsson, O.E. (2010). Use of Aquatic Protected Areas in the management of large lakes. Aquatic Ecosystem Health and Management 13(2): 135-142


Abrahams, M.V., Mangel, M. and Hedges, K. (2007).   Predator-prey interactions and changing environments: who benefits? Philosophical Transactions of the Royal Society 362(1487): 2095-2104


Hedges, K.J., Ludsin, S.A. and Fryer, B.J. (2004). Effects of ethanol preservation on otolith microchemistry. Journal of Fish Biology 64(4): 923-937

Research facility

501 University Avenue
Winnipeg, MB R3T 2N6