Justine HudsonUniversity of Manitoba | UMN · Department of Biological Sciences
Justine Hudson
Master of Science
About
8
Publications
1,365
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45
Citations
Citations since 2017
Introduction
I'm currently working on developing methods to 1) extract and isolate DNA from blow samples collected from beluga whales in the Canadian Arctic and 2) determine baseline stress levels of beluga whales non-invasive sampling techniques.
Additional affiliations
April 2016 - present
Position
- Research Assistant
Description
- I am responsible for developing protocols and conducting experiments to determine the foraging ecology of Arctic marine mammals. I am also responsible for identifying zooplankton and fish species.
April 2014 - April 2017
Position
- Laboratory Assistant
Description
- Responsible for conducting eco-toxicity experiments on Daphnia magna.
Education
June 2017 - October 2019
September 2008 - April 2016
Publications
Publications (8)
Identification of phenotypic characteristics in reproductively successful individuals provides important insights into the evolutionary processes that cause range shifts due to environmental change. Female beluga whales (Delphinapterus leucas) from the Baffin Bay region (BB) of the Canadian Arctic in the core area of the species’ geographic range h...
Identification of phenotypic characteristics in reproductively successful individuals provides important insights into the evolutionary processes that cause range shifts due to environmental change. Female beluga whales (Delphinapterus leucas) from the Baffin Bay region (BB) of the Canadian Arctic in the core area of the species’ geographic range h...
Identification of phenotypic characteristics in reproductively successful individuals provides important insights into the evolutionary processes that cause range shifts due to environmental change. Female beluga whales (Delphinapterus leucas) from the Baffin Bay region (BB) of the Canadian Arctic in the core area of the species’ geographic range h...
Blow or respiratory vapor collection is a noninvasive technique for monitoring the physiology of cetaceans and although this technique shows promise, a major challenge of blow collection is difficulty quantifying samples due to variable amounts of seawater contamination. Here, we aimed to (1) determine whether blow samples could be collected from f...
Endocrine tools can provide an avenue to better understand mammalian life histories and predict how individuals and populations may respond to environmental stressors; however, few options exist for studying long-term endocrine patterns in individual marine mammals. Here, we (i) determined whether hormones could be measured in teeth from four marin...
Identifying phenotypic characteristics of evolutionarily fit individuals provides important insight into the evolutionary processes that cause range shifts with climate warming. Female beluga whales (Delphinapterus leucas) from the Canadian high Arctic (BB) residing in the core region of the species’ geographic range are 14% larger than their consp...
As zooplanktivorous predators, bowhead whales (Balaena mysticetus) must routinely locate patches of prey that are energy-rich enough to meet their metabolic needs. However, little is known about how the quality and quantity of prey might influence their feeding behaviours. We addressed this question using a new approach that included: (1) multi-sca...
Climate change may affect the foraging success of bowhead whales Balaena mysti -cetusby altering the diversity and abundance of zooplankton species available as food. However,assessing climate-induced impacts first requires documenting feeding conditions under currentenvironmental conditions. We collected seasonal movement and dive-behaviour data f...
Questions
Questions (2)
Hello,
I'm trying to identify ovarian structures and this one has me stumped. Can anyone tell me whether this is a corpus albicans or luteum?
Thanks!
I'm working on developing a method to extract and isolate DNA from respiratory condensate or "blow" samples collected from beluga whales. In the field, we tried 2 different collection devices, a swab and nitex membrane. The nitex membrane was secured over a petri dish using a rubber band and the sample was collected on to the membrane. It was then placed inside of a 50 ml tube with desiccant to dry. The membrane is about 15 cm across, making it too large to use the suggested amount of ATL and Proteinase K for extractions. My question is, what's a good way to remove the dried cells/DNA from the nitex membrane so that I can continue to use a DNeasy kit? Any suggestions would be greatly appreciated!!
Projects
Project (1)
To collect blow samples from free-ranging beluga in Western Hudson Bay and to determine cortisol levels.
