David Depew
Recherche sur la dynamique des nutriments dans les systèmes aquatiques
Recherche et / ou projets en cours
Contribuer au mandat d’Environnement et Changement climatique Canada consistant à veiller à la conservation et à la protection des écosystèmes aquatique
· Effets de la charge en nutriments et des espèces envahissantes sur l’écologie des zones littorales de grands lacs
· Rôle des facteurs physiques, chimiques et biologiques dans le contrôle de la biomasse des algues dans les lacs
· Effet des stratégies de gestion des nutriments sur la remise en état des systèmes aquatiques perturbés
· Utilisation d’isotopes stables pour établir le flux des cycles des nutriments dans les lacs et les rivières
Activités professionnelles / intérêts
-Conseils scientifiques et stratégiques en ce qui concerne la dynamique des nutriments dans les écosystèmes aquatiques
- Supervision d’étudiants diplômés et de boursiers de recherches postdoctorales et comités
- Membre d’un comité de lecture et examinateur de demandes de subventions
Prix et études
Etudes
Doctorat en biologie, Université de Waterloo, 2009
Maîtrise ès sciences (biologie), Université de Waterloo, 2003
Baccalauréat ès sciences (environnement), Université de Guelph, 2001
Prix
Prix du meilleur examinateur (Journal of Great Lakes Research, 2016)
Citation d'excellence pour le travaille d'equipe (Environnement et Changement climatique Canada, 2015)
Prix du jeune scientifique Elsevier (Journal of Great Lakes Research, 2012)
Prix du doyen en sciences (Université de Waterloo, 2003)
Principales publications
Depew, D.C., Krutzelmann,E., Watchorn, K.E., Caskenette, A., Enders, E.C. 2021. The distribution, density, and biomass of the zebra mussel (Dreissena polymorpha) on natural substrates in Lake Winnipeg 2017-2019. Journal of Great Lakes Research. 47:556-566.
Visha, A., Lau, A., Yang, C., Bhavsar, S.P., Depew, D.C., Matos, L., Ni, F., Arhonditsis, G.B. 2021. A probabilistic assessment of the impairment status of Areas of Concern in the Laurentian Great Lakes: How far are we from delisting the Hamilton Harbour, Lake Ontario, Canada? Ecological Informatics 62:101271
Xia, Z., MacIsaac, H,.J., Hecky, R.E., Depew, D.C., Haffner, G.D., Weidman, R.P. 2021. Multiple factors regulate filtration by invasive mussels: Implications for whole lake ecosystems. Science of the Total Environment. 765: 144435.
Ozersky, T., Bramburger, A.J., Elgin, A.K., Vanderploeg, H.A., Wang, J., Austin, J.A., Carrick, H.J., Chavarie, L., Depew, D.C., Fisk, A.T., Hampton, S.E., Hinchey, E.K., North, R.L., Wells, M.G., Xenopolous, M.A., Coleman, M.L., Duhaime, M.B., Fujisaki-Manome,A., McKay, R.M., Meadows, G.A., Rowe, M.D., Sharma, S., Twiss, M.R., Zastepa, A. 2021. The changing face of winter: Lessons and Questions from the Laurentian Great Lakes. Journal of Geophysical Research: Biogeosciences. 126, e2021JG006247
Markovic, S., Liang,A., Watson, S.B., Depew, D.C., Zastepa, A., Surana, P., Vanden Byllaardt, J., Arhonditsis, G., Dittrich, M. 2019. Reduction of industrial iron pollution promotes phosphorus internal loading in eutrophic Hamilton Harbour, Lake Ontario, Canada. Environmental Pollution 252:697-705.
Smith, R.B., Bass, B., Sawyer, D., Depew, D.C., Watson, S.B. 2019. Estimating the economic costs of algal blooms in the Canadian Lake Erie Basin. Harmful Algae. 87:101624.
Valipour, R., Rao, Y.R., Leon,L.F., Depew, D. 2019. Nearshore-offshore exchanges in multi-basin coastal waters: Observations and three - dimensional modeling in Lake Erie. Journal of Great Lakes Research 45:50-60.
Depew, D.C., Koehler, G., Hiriart-Baer, V.P. 2018.Phosphorus dynamics and availability in the nearshore of eastern Lake Erie: Insights from oxygen isotope ratios of phosphate. Frontiers in Marine Science.
Valipour, R., Leon, L.F., Depew, D.C., Dove, A., Rao, Y.R. 2016. High resolution modeling for development of nearshore ecosystem objectives in eastern Lake Erie. Journal of Great Lakes Research.42:1241-1251.
Watson, S.B., Miller, C., Arhonditsis, G., Boyer, G.L., Carmichael, W., Charlton, M.N., Confesor, R., Depew, D.C., Hook T., Ludsin, S.A., Matisoff, G., McElmurry, S.P., Murray, M.W., Richards, R.P., Rao, Y.R., Steffen, M.M., Wilhelm, S.W. 2016. The re-eutrophication of Lake Erie: Harmful algal blooms and hypoxia. Harmful Algae. 56: 44 - 66.
Chetelat, J., Amyot, M., Arp, P., Blais, J.M., Depew, D.C., Emmerton, C.A., Evans, M., Gamber, M., Gantner, N., Girard, C., Graydon, J., Kirk, J., Lean, D., Lehnherr, I., Muir, D., Nasr, M., Poulain, A.J., Power, M., Roach, P., Stern, G., Swanson, H., van der Velden, S. 2015. Mercury in freshwater ecosystems of the Canadian Arctic: Recent advances on its cycling and fate. Science of the Total Environment.
Depew, D.C., Burgess, N.M., Campbell, L.M. 2013. Spatial patterns of methylmercury risk to common loons and piscivorous fish in Canada. Environmental Science and Technology 47: 13093 – 13103.
Depew, D.C., Burgess, N.M., Campbell, L.M. 2013. Modeling mercury concentrations in prey fish: Derivation of a common indicator of dietary exposure to piscivorous fish and wildlife. Environmental Pollution. 176: 234 – 243.
Depew, D.C., Burgess, N.M., Anderson, R.M., Baker, R., Bhavsar, S.P., Bodaly, R.A.,Eckley, C.S., Evans, M.S., Gantner, N., Graydon, J.A., Jacobs, K., LeBlanc, J.E., St.Louis, V.L., Campbell, L.M. 2013. An overview of mercury concentrations in freshwater fish species: A national fish mercury dataset for Canada: Canadian Journal of Fisheries and Aquatic Sciences. 70: 436 – 451.
North, R.L., R.E.H. Smith, Hecky, R.E., Depew, D.C., León, L.F., Charlton, M.N. and Guildford, S.J. 2012. Distribution of seston and nutrient concentrations in the eastern basin of Lake Erie pre- and post-dreissenid mussel introduction. Journal of Great Lakes Research. 38: 463 – 476.
Depew, D.C., Basu, N., Burgess, N.M., Campbell, L.M., Evers, D.C., Grasman, K.A.,Scheuhammer, A.M. 2012. Derivation of benchmark thresholds for dietary methylmercury in the common loon (Gavia immer): Justification for use in ecological risk assessment. Environmental Toxicology and Chemistry 31: 2399 – 2407.
Depew, D.C., Basu, N., Burgess, N.M., Campbell, L.M., Devlin, E.W., Drevnick, P.E., Hammerschmidt, C.R., Murphy, C.A., Sandheinrich, M.B. and Weiner, J.G. 2012. Toxicity of dietary methylmercury to fish: Derivation of ecologically meaningful thresholds. Environmental Toxicology and Chemistry 31: 1536 – 1547.
Léon, L.F., Smith, R.E.H., Malkin, S.Y., Depew, D.C., Hipsey, M.R., Antenucci, J.P., Higgins, S.N., Hecky, R.E., and Rao, Y.R. 2012. Nested 3D modeling of the spatial dynamics of nutrients and phytoplankton in a Lake Ontario near-shore zone. Journal of Great Lakes Research. 38: 171 – 183.
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