全球智库信息集成服务系统(G2TT): Trophic ecology of blue whiting in the Barents Sea.

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来源类型	Article
规范类型	其他
DOI	10.1093/icesjms/fsp254
	Trophic ecology of blue whiting in the Barents Sea.
	Dolgov AV; Johannesen E; Heino M; Olsen E
发表日期	2010
出处	ICES Journal of Marine Science 67 (3): 483-493
出版年	2010
语种	英语
摘要	Blue whiting (Micromesistius poutassou) are distributed throughout the North Atlantic, including the Norwegian and Barents Seas. In recent years, both abundance and distribution of blue whiting in the Barents Sea have increased dramatically. Therefore, to evaluate the trophic impact of this increase, we analysed the diet of the species. In all, 54 prey species or taxa were identified, the main prey being krill. However, the diet varied geographically and ontogenetically: the proportion of fish in the diet was higher in large blue whiting and in the north of the range. Blue whiting overlap geographically with other pelagic species at the edge of their distribution in the Barents Sea, with juvenile herring in the south, with polar cod in the north, and with capelin in the northeast. The overlap in diet between blue whiting and these other pelagic species ranged from 6 to 86% and was greatest with capelin in areas where both species feed on hyperiids and krill. The importance of blue whiting as prey for predatory fish was highest in the areas of greatest abundance, but overall, blue whiting were seemingly unimportant as prey of piscivorous fish in the Barents Sea.
主题	Evolution and Ecology (EEP)
关键词	blue whiting competition diet ecosystem survey predation trophic interaction
URL	http://pure.iiasa.ac.at/id/eprint/9154/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/129061
推荐引用方式 GB/T 7714	Dolgov AV,Johannesen E,Heino M,et al. Trophic ecology of blue whiting in the Barents Sea.. 2010.