Heidi K. Swanson
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View article: Return migration to fresh water and overwintering locations used by sympatric anadromous populations of <scp>Arctic</scp> char ( <i>Salvelinus alpinus</i> ) and <scp>Dolly Varden</scp> ( <i>Salvelinus malma malma</i> )
Return migration to fresh water and overwintering locations used by sympatric anadromous populations of <span>Arctic</span> char ( <i>Salvelinus alpinus</i> ) and <span>Dolly Varden</span> ( <i>Salvelinus malma malma</i> ) Open
Anadromous Arctic char ( Salvelinus alpinus ) and northern form Dolly Varden ( Salvelinus malma malma ) are highly valued by Indigenous communities in northern Canada. Rapid, ongoing environmental changes are affecting populations of both …
View article: Interconnected roles of mitochondrial carrier proteins ANT, PiT, and UCPs in proton transport
Interconnected roles of mitochondrial carrier proteins ANT, PiT, and UCPs in proton transport Open
Introduction Adenine nucleotide translocase (ANT), phosphate translocase (P i T), and uncoupling proteins (UCPs), all integral to oxidative phosphorylation, are among the carrier proteins of the mitochondrial inner membrane (MIM). While tr…
View article: Determinants of human hair mercury, blood mercury, blood selenium, and plasma omega-3 fatty acid levels within northern Canada
Determinants of human hair mercury, blood mercury, blood selenium, and plasma omega-3 fatty acid levels within northern Canada Open
To address community concerns within northern Canada, human biomonitoring projects measured concentrations of environmental contaminants and nutrients in human biological samples from the Dehcho and Sahtú regions of the Northwest Territori…
View article: A Fresh Perspective on Freshwater Data Management and Sharing: Exploring Insights from the Technology Sector
A Fresh Perspective on Freshwater Data Management and Sharing: Exploring Insights from the Technology Sector Open
It is well established that effective management and restoration of freshwater ecosystems is often limited by the availability of reusable data. Although numerous public, private, and nonprofit organizations collect data from freshwater ec…
View article: mort: An R package to conservatively identify mortalities and shed tags in passive telemetry arrays
mort: An R package to conservatively identify mortalities and shed tags in passive telemetry arrays Open
Telemetry is commonly employed to track animals and support ecological inferences, yet the possibility that tagged animals have died or shed their tags is often not fully considered. Neglecting to consider mortality and/or tag shedding can…
View article: Factors and mechanisms driving among-lake variability of mercury concentrations in a benthivorous fish in the canadian subarctic
Factors and mechanisms driving among-lake variability of mercury concentrations in a benthivorous fish in the canadian subarctic Open
Wild-caught fish are an important subsistence food source in remote northern regions, but they can also be a source of exposure to mercury (Hg), which has known health hazards. We investigated factors and mechanisms that control variabilit…
View article: Environment influences migration timing of cold-adapted salmonids ( <i>Salvelinus alpinus</i> and <i>S. malma malma</i> ) in the Canadian Arctic
Environment influences migration timing of cold-adapted salmonids ( <i>Salvelinus alpinus</i> and <i>S. malma malma</i> ) in the Canadian Arctic Open
Shifts in migration timing in response to climate change have implications for fitness and survival of cold-adapted species. We used acoustic telemetry to investigate and compare environmental influences on return to fresh water between sy…
View article: Harvester selection and observed mercury levels in Eastern Beaufort Sea and Western Hudson Bay beluga whales (Delphinapterus leucas)
Harvester selection and observed mercury levels in Eastern Beaufort Sea and Western Hudson Bay beluga whales (Delphinapterus leucas) Open
Mercury in marine biota has been extensively studied across Inuit Nunaat because it bioaccumulates and biomagnifies in high trophic level species, such as the beluga whale (Delphinapterus leucas), or qilalugaq in Inuktut. Qilalugaait (pl) …
View article: Can remotely sensed catchment to lake area ratios predict mercury levels in subarctic fishes?
Can remotely sensed catchment to lake area ratios predict mercury levels in subarctic fishes? Open
Mercury concentrations ([Hg]) in fish reflect a complex array of interacting biogeochemical and ecological variables. In northern regions where fish are a critical subsistence food, understanding and predicting fish [Hg] can be particularl…
View article: Gill raker and pyloric caeca counts differ between Arctic char (<i>Salvelinus alpinus</i>) and Dolly Varden (<i>S. malma</i>) populations across their ranges
Gill raker and pyloric caeca counts differ between Arctic char (<i>Salvelinus alpinus</i>) and Dolly Varden (<i>S. malma</i>) populations across their ranges Open
Meristic characters are often used to differentiate between closely related forms, morphs, and species of fishes, and lend insight into ecology and post‐glacial recolonization in taxa with complicated or contentious phylogenies, including …
View article: Pan-Canadian review of community-based monitoring projects and their capacity to enhance environmental monitoring programs for cumulative effects assessments
Pan-Canadian review of community-based monitoring projects and their capacity to enhance environmental monitoring programs for cumulative effects assessments Open
While community-based monitoring (CBM) can support meaningful participation of the public in environmental decision-making, it remains unclear if and how CBM can support western science approaches to biophysical studies within cumulative e…
View article: Trophic ecology of juvenile lean and siscowet lake charr (<i>Salvelinus namaycush</i>) in Lake Superior: assessing for potential competition
Trophic ecology of juvenile lean and siscowet lake charr (<i>Salvelinus namaycush</i>) in Lake Superior: assessing for potential competition Open
We investigated the spatial overlap, diet, isotopic niche, and growth of juvenile lean and siscowet lake charr ( Salvelinus namaycush) in Lake Superior to address concerns of potential competition with implications to the study of resource…
View article: Investigating effects of climate-induced changes in water temperature and diet on mercury concentrations in an Arctic freshwater forage fish
Investigating effects of climate-induced changes in water temperature and diet on mercury concentrations in an Arctic freshwater forage fish Open
The amount of mercury (Hg) in Arctic lake food webs is, and will continue to be, affected by rapid, ongoing climate change. At warmer temperatures, fish require more energy to sustain growth; changes in their metabolic rates and consuming …
View article: Overwintering ecology and movement of anadromous <scp>Arctic char</scp> (<i><scp>Salvelinus</scp> alpinus</i>) in a large, ice‐covered river in the <scp>Canadian Arctic</scp>
Overwintering ecology and movement of anadromous <span>Arctic char</span> (<i><span>Salvelinus</span> alpinus</i>) in a large, ice‐covered river in the <span>Canadian Arctic</span> Open
Arctic char ( Salvelinus alpinus ) is a facultatively anadromous fish species that is critically important to many Inuit communities in the Canadian Arctic. Plasticity in life history has allowed the species to persist in a diversity of ch…
View article: Isotopic and traits-based trophic diversity of Canadian Beaufort Sea benthic communities in relation to food supply
Isotopic and traits-based trophic diversity of Canadian Beaufort Sea benthic communities in relation to food supply Open
In the Arctic, climate-driven alterations to the quality and quantity of organic matter reaching the seafloor will likely affect benthic food web function. We used biomass-weighted diversity measures based on trophic traits (those related …
View article: Habitat area and environmental filters determine avian richness along an elevation gradient in mountain peatlands
Habitat area and environmental filters determine avian richness along an elevation gradient in mountain peatlands Open
Globally, relationships between avian richness and elevation in mountain ecosystems typically reflect one of four well‐documented patterns, but the mechanisms responsible for these patterns are poorly understood. We investigated which patt…
View article: Occupancy of young-of-year Arctic grayling (Thymallus arcticus) in Barrenland streams
Occupancy of young-of-year Arctic grayling (Thymallus arcticus) in Barrenland streams Open
Arctic grayling ( Thymallus arcticus ) is an iconic fish species that is present across the remote subarctic Barrenlands, yet our lack of understanding of their distributional patterns constrains predictions of anthropogenic effects on Bar…
View article: A meta-collection of nitrogen stable isotope data measured in Arctic marine organisms from the Canadian Beaufort Sea, 1983–2013
A meta-collection of nitrogen stable isotope data measured in Arctic marine organisms from the Canadian Beaufort Sea, 1983–2013 Open
Objectives Existing information on Arctic marine food web structure is fragmented. Integrating data across research programs is an important strategy for building a baseline understanding of food web structure and function in many Arctic r…
View article: The Canadian Beaufort Shelf trophic structure: evaluating an ecosystem modelling approach by comparison with observed stable isotopic structure
The Canadian Beaufort Shelf trophic structure: evaluating an ecosystem modelling approach by comparison with observed stable isotopic structure Open
Climate-driven impacts on marine trophic pathways worldwide are compounded by sea-ice loss at northern latitudes. For the Arctic, current information describing food-web linkages is fragmented, and there is a need for tools that can descri…
View article: A Bayesian mixing model framework for quantifying temporal variation in source of sediment to lakes across broad hydrological gradients of floodplains
A Bayesian mixing model framework for quantifying temporal variation in source of sediment to lakes across broad hydrological gradients of floodplains Open
Paleolimnological reconstructions provide insights into hydrological variability of dynamic floodplain lakes. However, spatial and temporal integration of multiple reconstructions often remains underdeveloped because the efficacy of differ…
View article: David W. Schindler (1940–2021): Trailblazing scientist and advocate for the environment
David W. Schindler (1940–2021): Trailblazing scientist and advocate for the environment Open
On March 4th, 2021, the global aquatic sciences community lost one of its most influential scientists, David W. Schindler. Dave’s landmark research that led to better protection of fresh waters around the world, his uncanny ability to iden…
View article: A Bayesian mixing model framework for quantifying temporal and spatial variation in source of sediment to lakes across hydrological gradients of floodplains
A Bayesian mixing model framework for quantifying temporal and spatial variation in source of sediment to lakes across hydrological gradients of floodplains Open
<p>Episodic flood events are critical for recharging water balance of floodplain lakes and maintaining their ecological integrity, yet are subject to alteration in frequency and magnitude by natural and anthropogenic processes that o…