Corinne Pomerleau

Corinne Pomerleau
Fisheries and Oceans Canada | DFO · Demersal and Benthic Science Branch

Ph.D. Biological Oceanography

About

23
Publications
34,335
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405
Citations
Introduction
My expertise is in marine food web ecology and dynamics, especially the trophic pathways in ocean ecosystems using biochemical proxies with a focus on marine mammals and zooplankton in sub-arctic and arctic seas.

Publications

Publications (23)
Article
Full-text available
Compound‐specific stable isotope analysis (CSIA) of amino acids (AAs) has been rapidly incorporated in ecological studies to resolve consumer trophic position (TP). Differential 15N fractionation of “trophic” AAs, which undergo trophic 15N enrichment, and “source” AAs, which undergo minimal trophic 15N enrichment and serve as a proxy for primary pr...
Article
Full-text available
Climate change is causing physical and biological changes in the polar marine environment, which may impact higher trophic level predators such as the bowhead whale (Balaena mysticetus) and the structure of their food webs. We used bulk stable isotope analysis and compound-specific isotope analysis (CSIA) of individual amino acids (AA) to examine b...
Article
Full-text available
Previous studies have demonstrated that the analysis of biogeochemical tracers along baleen can provide seasonal, annual, and longer term insights into whale movements, habitat use, diet, and ecosystem processes. We measured the mercury (Hg) concentration and stable carbon (δ¹³C) and nitrogen (δ¹⁵N) isotope compositions along baleen plates of bowhe...
Article
Full-text available
Functional trait diversity relates variation in the structure of biological communities to function and ecosystem processes. Zooplankton occupy a central position in marine food webs, modulating energy availability to higher trophic levels, while themselves affected by environmental variation. The use of traits with functional diversity potentially...
Technical Report
Full-text available
Climate change, pollution and resource development in the Canadian Arctic are affecting marine biodiversity. Healthy arctic ecosystems are fundamental to the economy and the cultural and spiritual dimensions of arctic residents. Diversity of marine biota throughout this region is significant, poorly known, and potentially at risk from the unprecede...
Article
Full-text available
Stable isotope ratios of carbon (d13C) in zooplankton are widely applied in ecosystem-level studies of energy flux and trophic interactions. Carbonate (CaCO3) and lipid content are highly variable both among and within zooplankton species. Such variability can arise from the d13C-depleted nature of lipids as well as differences in carbon incorporat...
Article
Full-text available
We define the biogeographic status quo of zooplankton communities sampled during the summer of 2008 in the sub-Arctic Pacific and western Arctic regions and examine spatial patterns of stable isotopes in the context of regional oceanography. Eight zooplankton assemblages were identified and corresponded to these regions: Gulf of Alaska, Bering Sea...
Article
Full-text available
The diet and feeding ecology of Eastern Canada–West Greenland bowhead whales were examined using fatty acid composition of the outer blubber layer of 50 individuals sampled during the summers of 2008 and 2009. Bowhead blubber was rich in the following fatty acids (FA): 14:0, 16:0, 16:1n–7, 18:0, 18:1n–11, 18:1n–9, 18:1n–7, 20:1n–11, 20:1n–9, 20:1n–...
Data
Our understanding of the significance of sound production to the ecology of deep-sea fish communities has improved little since anatomical surveys in the 1950s first suggested that sound production is widespread among slope-water fishes. The recent implementation of cabled ocean observatory networks around the world that include passive acoustic re...
Article
Full-text available
Our understanding of the significance of sound production to the ecology of deep-sea fish communities has improved little since anatomical surveys in the 1950’s first suggested that sound production is widespread among slope-water fishes. The recent implementation of cabled ocean observatory networks around the world that include passive acoustic r...
Article
Full-text available
The eastern Canada-West Greenland (EC-WG) bowhead whale Balaena mysticetus population is slowly recovering from the intensive commercial whaling of the 18th and 20th centuries. However, climate change, through effects on ice conditions and prey availability, is one of several threats that might affect bowhead whale recovery. In this study, we explo...
Article
Full-text available
As part of the Canadian contribution to the International Polar Year (IPY), several major international research programs have focused on offshore arctic marine ecosystems. The general goal of these projects was to improve our understanding of how the response of arctic marine ecosystems to climate warming will alter food web structure and ecosyste...
Article
Full-text available
The bowhead whale Balaena mysticetus is the only mysticete species endemic to the Arctic. The Eastern Arctic-West Greenland (EA-WG) population is considered of special concern in Canada as these whales remain at risk of becoming threatened or endangered due to their slow rate of growth and low fecundity, and ongoing environmental changes in the Arc...
Article
Full-text available
This study defined the status quo of biogeographic domains and examined spatial patterns of stable isotopes (SIs) of carbon and nitrogen in relation to biophysical groupings to gain greater insight into how mesozooplankton may respond to continuous environmental change in the Canadian Arctic and sub-Arctic regions. Mesozooplankton communities were...
Article
Full-text available
The stomach contents of four bowhead whales (Balaena mysticetus) harvested between 1994 and 2008 from the Canadian Arctic were examined to assess diet composition. Three samples were collected from bowhead whales of the Eastern Canada–West Greenland (EC–WG) population and represent, according to our knowledge, the first diet analysis from this bowh...
Article
Full-text available
Accurately predicting errors related to preservation, lipid extraction, and lipid normalization on chemical tracers would enable the use of archived samples in long-term studies of trophic ecology and habitat use of aquatic species. We determined whether stable carbon and nitrogen isotope ratios and concentrations of 14 trace elements can be accura...

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Projects

Project (1)
Project
Insight into the trophic structure and biogeochemistry of Disko Bay, West Greenland