气候变化领域集成服务门户(CCPortal): Assessment of inter-regional dietary differences in anadromous Arctic char (Salvelinus alpinus) in Nunavik, Canada, and links with flesh quality indicators

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DOI	10.1139/as-2023-00181
	Assessment of inter-regional dietary differences in anadromous Arctic char (Salvelinus alpinus) in Nunavik, Canada, and links with flesh quality indicators
	Bolduc, Sara; Lemire, Melanie; Tremblay, Jean-Eric; Falardeau, Marianne; Dallaire, Xavier; Brochu, Mylene; Legros, Justine; Moore, Jean-Sebastien
发表日期	2024
EISSN	2368-7460
英文摘要	Arctic char (Salvelinus alpinus) is a salmonid fish that is the second-most consumed country food species by Nunavimmiut. Its nutritional quality is determined by omega-3 fatty acids and carotenoid pigments. Those molecules cannot be synthetized by fish and must be acquired through diet. We sampled Arctic char in 10 rivers from the three marine coastal regions of Nunavik (Hudson Bay, Hudson Strait, and Ungava Bay), described diet (stable isotopes delta C-13 and delta N-15) and flesh quality (fatty acids and carotenoids, measured by chromatography) and assessed associations between both diet and flesh quality (including also bio-impedance and colorimetry). Our results suggested inter-regional differences in the diet and nutritional quality of Arctic char in Nunavik, where delta C-13 values indicated that the diet of Arctic char in Hudson Bay was more pelagic, while in Ungava Bay it was more coastal. We also observed inter-regional differences in omega-3 fatty acids and astaxanthin, the pigment responsible for the redness of the flesh color, where concentrations were highest in Ungava Bay Arctic char. In all sampling locations, Arctic char were an exceptional source of omega-3 fatty acids and astaxanthin, confirming its importance as a high-quality wild food. Our models suggest that astaxanthin, canthaxanthin, and water content influence flesh redness. Our data highlight inter-regional differences that could be taken in consideration to better predict the impact of climate change on fish quality and, ultimately, on Inuit diet and health.
英文关键词	Stable isotopes; omega-3 fatty acids; astaxanthin; bio-impedance; colorimetry
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Science & Technology - Other Topics
WOS类目	Ecology ; Environmental Sciences ; Multidisciplinary Sciences
WOS记录号	WOS:001224167900001
来源期刊	ARCTIC SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301587
作者单位	Laval University; Laval University; Laval University; Laval University; Laval University; Laval University
推荐引用方式 GB/T 7714	Bolduc, Sara,Lemire, Melanie,Tremblay, Jean-Eric,et al. Assessment of inter-regional dietary differences in anadromous Arctic char (Salvelinus alpinus) in Nunavik, Canada, and links with flesh quality indicators[J],2024.
APA	Bolduc, Sara.,Lemire, Melanie.,Tremblay, Jean-Eric.,Falardeau, Marianne.,Dallaire, Xavier.,...&Moore, Jean-Sebastien.(2024).Assessment of inter-regional dietary differences in anadromous Arctic char (Salvelinus alpinus) in Nunavik, Canada, and links with flesh quality indicators.ARCTIC SCIENCE.
MLA	Bolduc, Sara,et al."Assessment of inter-regional dietary differences in anadromous Arctic char (Salvelinus alpinus) in Nunavik, Canada, and links with flesh quality indicators".ARCTIC SCIENCE (2024).