Karen Dunmall

Karen Dunmall
Fisheries and Oceans Canada, Winnipeg, Canada · Arctic Aquatic Research Division

PhD

About

51
Publications
20,129
Reads
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701
Citations
Citations since 2016
29 Research Items
317 Citations
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Introduction
Salmon are being caught in the Canadian Arctic, and they seem to be increasing in numbers. Follow the research at www.arcticsalmon.ca or www.facebook.com/arcticsalmon

Publications

Publications (51)
Conference Paper
Full-text available
Pacific salmon appear to be expanding their range into Arctic ecosystems and may be acting as effective sentinels of climate change. Salmon harvests voluntarily reported through the Pacific Salmon Collection Program (PSCP) suggest recent increases in both the abundance and distribution of Pacific salmon in the Arctic over the past decade. In the Ca...
Article
Full-text available
Distributional shifts of biota to higher latitudes and elevations are presumably influenced by species-specific physiological tolerances related to warming temperatures. However, it is establishment rather than dispersal that may be limiting colonizations in these cold frontier areas. In freshwater ecosystems, perennial groundwater springs provide...
Article
Full-text available
As the Arctic rapidly warms, sub-Arctic species such as the Atlantic salmon (Salmo salar) are expected to shift their distributions into the Arctic, potentially facilitating interaction with native Arctic species. Here, the possible dispersal and establishment of Atlantic salmon are considered in Canadian Arctic fresh waters containing Arctic char...
Book
Full-text available
While salmon have been harvested for generations in some areas of the Canadian Arctic, salmon harvests are generally increasing across northern Canada. More species of salmon are being harvested in more places and in higher abundances in recent years. Accordingly, more northerners are eating more salmon. People new to salmon as food are now learnin...
Book
Full-text available
The purposes of this guide are to assist in: 1. Differentiating among Pacific salmon, Atlantic Salmon, and char; 2. Identifying among the different kinds of Pacific salmon; 3. Identifying among the different kinds of char; 4. Identifying among the different kinds of juvenile Pacific salmon.
Article
Full-text available
In Canada, the participation of Indigenous communities in research and monitoring is growing in response to calls for partnerships and heightened interest in bridging Indigenous and Western science-based knowledge. Yet, as settler scholars, we have noted inconsistencies in the articulation and operationalization of community participation in peer-r...
Article
Full-text available
Climate change and biodiversity loss are twin crises that are driving global marine conservation efforts. However, if unaccounted for, climate change can undermine the efficacy of such efforts. Despite this, integration of climate change adaptation and resilience into spatial marine conservation and management has been limited in Canada and elsewhe...
Article
The distributional extent of Pacific salmon Oncorhynchus spp. in the North American Arctic is unresolved. While adult Pacific salmon have a recurring presence across the Alaskan North Slope and into the Canadian Arctic, it is uncertain if these fish are part of established Arctic populations, vagrants from outside sources reproducing unsuccessfully...
Article
Rapid climate change is altering Arctic ecosystems and significantly affecting the livelihoods and cultural traditions of Arctic Indigenous peoples. In the Inuvialuit Settlement Region (ISR), an increase in the harvest of Pacific salmon indicates largescale changes influencing Inuvialuit fisheries. In this project we recorded and synthesized Inuvia...
Article
Arctic marine ecosystems are changing, one aspect of which appears to be distributional expansions of sub-arctic species. For Arctic marine systems, there is limited occurrence information for many species, especially those found in restricted habitats (e.g., ice-covered, far north, or deep-water). Increasing observations through on-going Fisheries...
Article
Full-text available
In conclusion, over the past 20 years, and particularly since 2011, almost all Pacific salmon species found in North America, with the exception of coho salmon, have increased in occurrence and geographic distribution in the Canadian Arctic. These species are also experiencing more extreme variations in harvests, with an increased frequency of exc...
Article
Broad-scale changes in sea ice have been documented across the Arctic; however, less is known about sea ice decline at smaller scales, focused at high priority areas such as marine protected areas (MPAs) or places identified as important by Indigenous Peoples. Here we develop a small-scale application of assessing sea ice change using weekly sea ic...
Article
Full-text available
Effective management of freshwater fish habitat is essential to supporting healthy aquatic ecosystems and sustainable fisheries. In Canada, recent changes to the Fisheries Act enhanced the protection of fish habitat, but application of those provisions relies on sound scientific evidence. We employed collaborative research prioritization methods to...
Article
Full-text available
Establishing a baseline of Arctic marine biodiversity is necessary for monitoring impacts of climate change in the vulnerable Canadian Arctic and protecting sensitive regions that are of significant importance to Inuit cultural and socio-economics. Under the goals of improving documentation of Arctic marine communities and creating a tool for asses...
Article
Full-text available
Life-history and life-cycle models of Pink salmon (Oncorhynchus gorbuscha) are developed to provide insight into production dynamics of northern Bering Sea Pink salmon. Arctic ecosystems, including freshwater and marine ecosystems in the northern Bering Sea, are warming at a rapid rate. Due to their short, two-year life cycle, Pink salmon are well...
Article
Full-text available
Having the longest coastlines in the world and some of the largest freshwater ecosystems, Canada has a rich history of exploitation and stewardship of its marine and freshwater fisheries resources. For thousands of years prior to European settlement, Indigenous peoples across what is now Canada utilized and managed marine and freshwater fisheries t...
Technical Report
Full-text available
Overview and synthesis of the present state of the Arctic Seas of Canada
Technical Report
Full-text available
Specific case studies in support of the main technical report 3344
Technical Report
Full-text available
A survey of coastal fishes was conducted in western Coronation Gulf in the fall of 2017 in order to assess community composition of nearshore fishes and identify their habitat associations. Fishes were collected at coastal sites in close proximity to the Rae (67°55' N and 115°20' W), and Coppermine (67°49' N and 115°05' W) rivers, near the communit...
Conference Paper
Full-text available
Here the objective is to summarize changes in salmon abundance, distribution and species composition in subsistence harvests in Canadian Arctic since previous reviews (Stephenson 2006; Nielson et al. 2013; Dunmall et al. 2013). This information also contributes to the establishment of community-based monitoring as an effective method to detect rare...
Book
Full-text available
There are many different kinds of salmon and char and many different local names for the same fish. Salmon and char species breed in fresh water but migrate to the sea to feed and grow. The external appearance of the same fish can look different depending on where and when they are harvested. In the sea, maturing salmon and char exhibit a ‘Silver P...
Book
Full-text available
The Northwest Territories (NWT) is home to a diverse group of plants and animals. About 30,000 species are estimated to occur here. An important first step in safeguarding biodiversity is to increase our knowledge of each species and to provide a mechanism to monitor the conservation status of each species regularly. Monitoring the status ranks of...
Book
Full-text available
The purposes of this guide are to assist in: 1. Differentiating among Pacific salmon, Atlantic Salmon, and char; 2. Identifying among the different kinds of Pacific salmon; 3. Identifying among the different kinds of char.
Conference Paper
Warming temperatures may be influencing distributional shifts in the Arctic, yet understanding regarding the ecological implications of these shifts is limited. Vagrant Chum and Pink Salmon appear to be increasing in abundance and distribution in the Canadian Arctic, and could colonize new habitats. Substrate-spawning salmonids in the Arctic share...
Article
Full-text available
We examined the assumption that landscape heterogeneity similarly influences the spatial distribution of genetic diversity in closely related and geographically overlapping species. Accordingly, we evaluated the influence of watershed affiliation and nine habitat variables from four categories (spatial isolation, habitat size, climate, and ecology)...
Article
Full-text available
We used 20 microsatellite loci to compare genetic diversity and patterns of isolation-by-distance among three groups of chum salmon (Oncorhynchus keta) from two physically distinct watersheds in western Alaska, USA. The results were consistent with the hypothesis that gene flow decreases as the complexity of the hydrographic system increases. Speci...
Article
Farmed Atlantic salmon, Salmo salar, frequently escape from the aquaculture industry and interact with wild populations. The impact of these interactions on the wild populations will depend, in part, on differences in their performances. This study compared the swimming and cardiac performance of farmed salmon (Aquagen) with their founder populatio...
Article
On wave-sheltered shores of the northeastern Pacific, the population size structure of Littorina sitkana varies with intertidal height, as larger snails are mostly found only in the upper intertidal. This pattern has been attributed to high predation rates by crabs (and perhaps fish) on large snails inhabiting low-intertidal areas; i.e., large snai...
Article
Full-text available
Traditional approaches for assessing the effects of catch-and-release angling have focused either on hooking injury, mortality associated with different handling and environmental conditions, or biochemical indicators of short-term stress response and recovery. These methodologies do not permit the collection of real-time data on the sub-lethal eff...
Article
Full-text available
We studied the effects of catch-and-release angling on rock bass Ambloplites rupestris, a small but common centrarchid species in North America. A field study of hooking injury and mortality was conducted in Lake Erie at a water temperature of 168C. We captured fish using one of four terminal tackle types: barbless worm, barbed worm, barbless jig,...
Article
Full-text available
Although regulations prohibiting the use of natural baits are relatively common, new regulations specifically targeting the use of chemical attractants have recently been implemented. While no citeable evidence for these new regulations exists, they may have been promulgated due to a perceived increase in the risk of fish mortality from scented lur...
Article
We studied the effects of catch-and-release angling on rock bass Ambloplites rupestris a small but common centrarchid species in North America. A field study of hooking injury and mortality was conducted in Lake Erie at a water temperature of 16°C. We captured fish using one of four terminal tackle types: barbless worm, barbed worm, barbless jig, a...

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Projects

Projects (2)
Project
Research on salmon colonization in the Canadian Arctic
Project
A transferrable framework for monitoring coastal fishes and their habitat associations using community-based approaches