气候变化领域集成服务门户(CCPortal): Biophysical indicators and Indigenous and Local Knowledge reveal climatic and ecological shifts with implications for Arctic Char fisheries

CCPortal

DOI	10.1016/j.gloenvcha.2022.102469
	Biophysical indicators and Indigenous and Local Knowledge reveal climatic and ecological shifts with implications for Arctic Char fisheries
	Falardeau M.; Bennett E.M.; Else B.; Fisk A.; Mundy C.J.; Choy E.S.; Ahmed M.M.M.; Harris L.N.; Moore J.-S.
发表日期	2022
ISSN	0959-3780
卷号	74
英文摘要	Managing Arctic marine resources to be resilient to environmental changes requires knowledge of how climate change is affecting marine food webs and fisheries. Changes to fishery resources will have major implications for coastal Indigenous communities whose livelihoods, health, and cultures are strongly connected to fisheries. Understanding these broad social-ecological changes requires a transdisciplinary approach bringing together contrasting and complementary disciplines and ways of knowing. Here, we examine climatic proxies, ecological, and fishery indicators (stable isotopes, fish condition, and lipid content), and interviews with Inuit fishers to assess how marine ecosystem changes have influenced Arctic Char (Salvelinus alpinus) ecology and fisheries over a 30-year time period (1987–2016) in the Kitikmeot region of the Canadian Arctic. Inuit fishers reported several observations of environmental changes, including longer ice-free seasons, warmer ocean temperatures, and the arrival of new marine species. Biophysical data revealed important changes toward earlier dates of ice breakup (>12 days in some areas) and a shift in isotopic niche reflecting a changing Arctic Char diet, with increased contribution of pelagic carbon and higher trophic level prey. Fish condition was improved in years with earlier ice breakup, as observed by both Inuit fishers and biophysical indicators, while lipid content increased through time, suggesting that longer ice-free seasons may have a positive effect on Arctic Char quality as reflected by both fish condition and lipid content. Long-term impacts of continuing climate change, however, such as the northward expansion of boreal species and increasing ocean temperatures, could have negative effects on fisheries (e.g., physiological impairment in fish if temperatures exceed their thermal range). Continuous community-based monitoring that directly informs fisheries management could help communities and managers adaptively, and sustainably, manage in the face of multiple interacting changes in Arctic marine systems. © 2022 The Authors
英文关键词	Arctic Char fisheries; Arctic Ocean; Climate change; Ecosystem services; Food web; Transdisciplinary research
语种	英语
scopus关键词	biophysics; climate change; fishery; fishery management; ice breakup; marine ecosystem; traditional knowledge; trophic level; Canada; Canadian Arctic
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/256638
作者单位	Department of Natural Resource Sciences, McGill University, Macdonald Campus, 21,111 Lakeshore Road, Ste. Anne de Bellevue, H9X 3V9, Canada; Bieler School of Environment, McGill University, 3534 University, Montreal, H3A 2A7, Canada; Department of Geography, University of Calgary, 2500 University Drive NW, Calgary, T2N 1N4, Canada; School of the Environment, University of Windsor, 401 Sunset Avenue, Windsor, N9B 3P4, Canada; Centre for Earth Observation Science, University of Manitoba, 125 Dysart Road, Winnipeg, R3T 2N2, Canada; Geology Department, Beni-Suef University, 101 Salah Salem St., Bani Sweif 62511, Egypt; Arctic and Aquatic Research Division, Fisheries and Oceans Canada, 501 University Crescent, Winnipeg, R3T 2N6, Canada; Department of Biology, Université Laval, 1045 Avenue de la Médecine, Quebec City, G1V 0A6, Canada
推荐引用方式 GB/T 7714	Falardeau M.,Bennett E.M.,Else B.,et al. Biophysical indicators and Indigenous and Local Knowledge reveal climatic and ecological shifts with implications for Arctic Char fisheries[J],2022,74.
APA	Falardeau M..,Bennett E.M..,Else B..,Fisk A..,Mundy C.J..,...&Moore J.-S..(2022).Biophysical indicators and Indigenous and Local Knowledge reveal climatic and ecological shifts with implications for Arctic Char fisheries.Global Environmental Change,74.
MLA	Falardeau M.,et al."Biophysical indicators and Indigenous and Local Knowledge reveal climatic and ecological shifts with implications for Arctic Char fisheries".Global Environmental Change 74(2022).