Accelerated recruitment of copepod Calanus hyperboreus in pelagic slope waters of the western Arctic Ocean

IOCAS-IR

	Accelerated recruitment of copepod Calanus hyperboreus in pelagic slope waters of the western Arctic Ocean
	XU Zhiqiang; ZHANG Guangtao; SUN Song
发表期刊	Acta Oceanologica Sinica
ISSN	0253-505X
	2018-05-15
出版年	2018
卷号	v.37 期号:05 页码:91-99
文献类型	CNKI期刊论文
摘要	Shelf-basin advection is essential to subsistence of the Arctic copepod Calanus hyperboreus population in high basin area. Its abundance, population structure and body size in pelagic layer were investigated with samples collected over a large range in the western Arctic Ocean during summer 2003, to evaluate the geographical variation in recruitment pattern. Calanus hyperboreus was absent from the shallow areas of the Chukchi Sea and most abundant in the slope area between the Chukchi Sea and Chukchi Abyssal Plain(CS-slope). Total abundance varied between 1 110.0 and 5 815.0 ind./m2 in the CS-slope area and ranged from 40.0 to 950.0 ind./m2 in the other areas. Early stages(CI–IV) dominated in the CS-slope area, whereas CV and adult females were frequently recorded only in deep basin areas. Geographical difference of prosome length was most evident in CIII,with average ranging from 2.48 to 2.61 mm at the CS-slope stations and 2.16–2.37 mm at the others. Abundance of early developmental stages(CI–CIV) correlated positively with Chl a concentration, but negative correlation was observed in late stages(CV–adult). Our results indicated that C. hyperboreus can benefit from primary production increase through accelerated development in the first growth season and the productive CS-slope area is a potential source for slope-basin replenishment.
关键词	continental slope prosome length population structure food availability life cycle
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A006;
CNKI专题名称	生物学;
分类号	Q958.8
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	The National Natural Science Foundation of China under contract No.40406002 ; the Public Science and Technology Research Funds Projects of Ocean under contract No.201105022
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/188921
专题	中国科学院海洋研究所
作者单位	1.JiaozhouBayMarineEcosystemResearchStation,InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences 3.KeyLaboratoryofMarineEcologyandEnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	XU Zhiqiang,ZHANG Guangtao,SUN Song. Accelerated recruitment of copepod Calanus hyperboreus in pelagic slope waters of the western Arctic Ocean. 2018.