Search
Skip to Search Results- 6Earth and Atmospheric Sciences, Department of
- 6Earth and Atmospheric Sciences, Department of/Journal Articles (Earth and Atmospheric Sciences)
- 6Graduate and Postdoctoral Studies (GPS), Faculty of
- 6Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 1Biological Sciences, Department of
- 1Biological Sciences, Department of/Journal Articles (Biological Sciences)
-
A baseline evaluation of oceanographic and sea ice conditions in the Hudson Bay Complex during 2016-2018
Download2021-01-01
Lukovich, Jennifer V., Jafarikhasragh, Shabnam, Tefs, A., Myers, Paul G., Sydor, K., Wong, K., Stroeve, Julienne C., Stadnyk, T. A., Babb, D., Barber, D. G.
In this paper, we examine sea surface temperatures (SSTs) and sea ice conditions in the Hudson Bay Complex as a baseline evaluation for the BaySys 2016-2018 field program time frame. Investigated in particular are spatiotemporal patterns in SST and sea ice state and dynamics, with rankings of the...
-
Arctic cod (Boreogadus saida) hatching in the Hudson Bay system: Testing of the freshwater winter refuge hypothesis
Download2022-01-01
Schembri, Sarah, Deschepper, Inge, Myers, Paul G., Sirois, Pascal, Fortier, Louis, Bouchard, Caroline, Maps, Frederic
Buoyant Arctic cod (Boreogadus saida) eggs are found at the surface or at the ice-water interface in winter. While winter temperatures in saline waters fall below 0 degrees C, the temperature in areas affected by under-ice river plumes is slightly higher. Under-ice river plumes may therefore...
-
Assessing stress in western Hudson Bay polar bears using hair cortisol concentration as a biomarker
DownloadFall 2015
The development of novel biomarkers to help assess whether polar bear (Ursus maritimus) health is impacted by long-term physiological stress associated with climate change represents an emerging area of research. With progressively greater reductions in sea ice cover and a corresponding decrease...
-
2022-01-01
Barbedo, Lucas, Belanger, Simon, Lukovich, Jennifer V., Myers, Paul G., Tremblay, Jean-Eric
Pulses of ocean primary productivity during the fall season are frequent in the mid-latitudes when ocean cooling and wind-driven turbulence erode the surface stratification and allow the injection of nutrients into the euphotic zone. This phenomenon is often referred to as a phytoplankton fall...
-
2020-01-01
Dmitrenko, Igor A., Myers, Paul G., Kirillov, Sergei A., Babb, David G., Volkov, Denis L., Lukovich, Jennifer V., Tao, Ran, Ehn, Jens K., Sydor, Kevin, Barber, David G.
Hudson Bay of northern Canada receives upward of 700 km3 of river discharge annually. Cyclonic water circulation in Hudson Bay transports this massive volume of riverine water along the coast toward Hudson Strait and into the Labrador Sea. However, synoptic, seasonal and interannual variability...
-
Individual variation in on-ice movement dynamics and site fidelity of western Hudson Bay polar bears
DownloadFall 2023
Individual variation affects fundamental aspects of ecology and behaviour in many species. Individuals vary in sex, age, reproductive status, and personality, which can be compared between individuals (inter-individual) or within individuals (intra-individual). In this dissertation, I tested...
-
Fall 2012
Sea ice concentration (SIC), the length of the ice-free period, and the break-up date are correlated with the survival and reproduction success of polar bears (Ursus maritimus) in Western Hudson Bay (WH). I use a high-resolution sea ice-ocean model to predict these parameters through the 21st...
-
Spring 2020
Polynyas and leads are recurrent areas of open water within sea ice that are important to many Arctic species, including marine mammals; however, the importance to polar bears (Ursus maritimus) has not been examined. The western Hudson Bay flaw lead (hereafter lead) is a major, predictable...
-
Fall 2015
Traditionally, population delineation has been determined using mark-recapture, band returns, and more recently, telemetry, geologgers and genetics. But telemetric and genetic population structure data have rarely been examined concurrently to explore differences and similarities. I define a...