A5016019861- Marine animal studies overview
- Indigenous Studies and Ecology
- Mercury impact and mitigation studies
- Toxic Organic Pollutants Impact
- Arctic and Russian Policy Studies
- Per- and polyfluoroalkyl substances research
- Heavy Metal Exposure and Toxicity
- Hearing, Cochlea, Tinnitus, Genetics
- Noise Effects and Management
- Arctic and Antarctic ice dynamics
- Bat Biology and Ecology Studies
- Fluoride Effects and Removal
- Marine Bivalve and Aquaculture Studies
- Ichthyology and Marine Biology
- Food Security and Health in Diverse Populations
- Indigenous Health, Education, and Rights
- Culinary Culture and Tourism
- Underwater Acoustics Research
University of Waterloo
2021-2024
Fisheries and Oceans Canada
2017-2023
University of Ottawa
2023
University of Manitoba
2023
Yukon University
2023
University of Rostock
2022
John Wiley & Sons (United States)
2022
Hudson Institute
2022
University of Northern British Columbia
2011-2018
University of Winnipeg
2017
Belugas (Delphinapterus leucas) from the Eastern Beaufort Sea (EBS) population are harvested annually in Inuvialuit Settlement Region (ISR) during their seasonal migration past coastal communities and harvest camps. The beluga monitoring program is a flagship of ISR's Fish Marine Mammal Community Monitoring Program, it has provided critical information about health observed changes EBS population. This study aimed to develop suite local indicators that bridged traditional ecological...
Perfluorinated compounds (PFCs) have been detected in humans worldwide and are of health concern. This study measured the concentration PFCs composite samples collected for 1998 Health Canada Total Diet Study estimated dietary exposure Canadian population (older than 12 years age) using previously data (n = 1721). were 8 including processed meats, preprepared foods, peppers with a range concentrations from 0.48 to 5.01 ng g(-1) (wet weight). 6:2 fluorotelomer unsaturated carboxylate (FTUCA)...
Monitoring data have shown that the total monomethylmercury (CH(3) Hg(+) and its complexes; collectively referred as MeHg hereafter) concentrations in Arctic marine mammals remained very high recent decades. Toward a better understanding of metabolic toxicological implications these levels MeHg, we report here on molecular forms muscle, brain, liver, kidneys 10 beluga whales from western Canadian Arctic. In all tissues analyzed, was found to be dominated by methylmercuric cysteinate,...
This paper documents Inuvialuit traditional ecological knowledge of beluga, including ecology and behavior, hunting techniques, food preparation under changing climatic conditions in Tuktoyaktuk, NT. Beluga whale (Delphinapterus leucas) is an important source for the western Canadian Arctic, a region that experiencing dramatic climate change. Data were collected using semi-directed interviews with 17 beluga harvesters participant observation. The research found possess detailed rational...
The Eastern Beaufort Sea (EBS) beluga (Delphinapterus leucas) population are an important traditional food for the Inuit of Inuvialuit Settlement Region, Northwest Territories (NT) Canada. In 2014, over 30 whales were harvested at Ulukhaktok, NT, first occurrence a large harvest in area on record. Unlike observations from established monitoring program Mackenzie Estuary, these belugas had numerous prey and items their stomachs. Our study objectives to combine local knowledge (TLK) hunters...
Mercury (Hg) concentrations have increased in western Arctic beluga whales (Delphinapterus leucas) since the industrial revolution. Methylmercruy (MeHg) is a known neurotoxicant, yet little about risk of exposure for whales. Selenium (Se) has been linked to demethylation MeHg cetaceans, but its role attenuating Hg toxicity poorly understood. The objective this study explore relationships between and Se neurochemical biomarkers different brain regions order assess potential neurotoxicological...
Prestin is an integral membrane motor protein located in outer hair cells of the mammalian cochlea. It responsible for electromotility and required cochlear amplification. Although prestin works a cycle-by-cycle mode up to frequencies at least 79 kHz, it not known whether or extreme high used by echolocating species. Cetaceans are possess coding gene. However, expression distribution pattern cetacean cochlea has been determined, contribution echolocation yet resolved. Here we report five...
Abstract The apex or apical region of the cochlear spiral within inner ear encodes for low‐frequency sounds. disposition sensory hair cells on organ Corti is largely variable in mammals, and it does not necessarily follow typical three‐row pattern outer (OHCs). As most underwater noise sources contain components, we expect to find lesions cochlea toothed whales, cases permanent noise‐induced hearing loss. To further understand how man‐made might affect cetacean hearing, there a need describe...
For Canadian Arctic indigenous populations, marine mammal (MM) traditional foods (TFs) represent sources of both important nutrients and hazardous environmental contaminants. Food preparation is known to impact the nutrient contaminant content processed items, yet impacts on MM TFs remain poorly characterized. In order determine how various processes involved in preparing beluga blubber affect their levels contaminants, we collected samples from 2 male whales, aged 24 37 years, captured...
In recent years, the protozoan parasite Toxoplasma gondii has increasingly been recognized in Arctic fauna, including beluga whales (Delphinapterus leucas) Eastern Beaufort Sea (EBS), Northwest Territories. We qualitatively assessed risks of T. to health EBS because their importance livelihood communities as well potential role sentinels. This risk assessment used a standard framework hazard identification, characterization, exposure assessment, and characterization. conclude that currently,...
Public health communication about diet in Inuit communities must balance the benefits and risks associated with both country store-bought food choices processes to support well-being. An understanding of how dietary messages—public addressing safety food—are developed disseminated Arctic is currently lacking. As part Country Foods for Good Health study, this participatory research sought characterize messaging Inuvialuit Settlement Region (ISR), Northwest Territories (NWT), from perspective...
Environmental change and decreased ice cover in the Arctic make new areas accessible to humans animals. It is important understand how these changes impact marine mammals, such as beluga whales (Delphinapterus leucas Pallas, 1776). Hearing crucial daily lives of cetaceans. Consequently, we need normal baselines further anthropogenic noise affects Relatively little known about inner ear morphology belugas, particularly organ Corti, or hearing organ, found within cochlea. The base cochlea...
Northern Indigenous communities require collaborative approaches to health communication about food that are grounded in knowledges and cultures; however, preferences best methods for this process remain understudied. This participatory study discusses how Inuvialuit (Inuit from the Western Arctic) knowledge perspectives of territorial, regional, local dietary message stakeholders can inform co-development culture-centered messaging support healthy, safe, culturally appropriate diets...