气候变化领域集成服务门户(CCPortal): Vertical eDNA distribution of cold-water fishes in response to environmental variables in stratified lake

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DOI	10.1002/ece3.11091
	Vertical eDNA distribution of cold-water fishes in response to environmental variables in stratified lake
	Fukumori, Kayoko; Kondo, Natsuko I.; Kohzu, Ayato; Tsuchiya, Kenji; Ito, Hiroshi; Kadoya, Taku
发表日期	2024
ISSN	2045-7758
起始页码	14
结束页码	3
卷号	14 期号:3
英文摘要	In summer, the survival zones of cold-water species are predicted to narrow by both increasing water temperatures from the surface and by expanding hypoxic zones from the lake bottom. To examine how the abundance of cold-water fishes changes along environmental gradients, we assessed the vertical environmental DNA (eDNA) distributions of three salmonid species which may have different water temperature tolerances during both stratification and turnover periods using quantitative PCR (qPCR). In addition, we examined on the vertical distribution of diverse fish fauna using an eDNA metabarcoding assay. The results suggested that the kokanee salmon (Oncorhynchus nerka) eDNA were abundant in deep, cold waters. On the other hand, rainbow trout (O. mykiss) eDNA were distributed uniformly throughout the water column, suggesting that they may have high water-temperature tolerance compared with kokanee salmon. The eDNA concentrations of masu salmon (O. masou) were below the detection limit (i.e., <10 copies mu L-1) at all stations and depths and hence could not be quantified during stratification. Together with the finding that the eDNA distributions of other prey fish species were also constrained vertically in species-specific ways, our results suggest that climate change will result in substantial changes in the vertical distributions of lake fish species and thus affect their populations and interactions.
英文关键词	eDNA; metabarcoding; salmon; species detection; stratification
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:001186178800001
来源期刊	ECOLOGY AND EVOLUTION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295490
作者单位	National Institute for Environmental Studies - Japan
推荐引用方式 GB/T 7714	Fukumori, Kayoko,Kondo, Natsuko I.,Kohzu, Ayato,et al. Vertical eDNA distribution of cold-water fishes in response to environmental variables in stratified lake[J],2024,14(3).
APA	Fukumori, Kayoko,Kondo, Natsuko I.,Kohzu, Ayato,Tsuchiya, Kenji,Ito, Hiroshi,&Kadoya, Taku.(2024).Vertical eDNA distribution of cold-water fishes in response to environmental variables in stratified lake.ECOLOGY AND EVOLUTION,14(3).
MLA	Fukumori, Kayoko,et al."Vertical eDNA distribution of cold-water fishes in response to environmental variables in stratified lake".ECOLOGY AND EVOLUTION 14.3(2024).