Feeding and egg production of the planktonic copepod Calanus sinicus in spring and autumn in the Yellow Sea, China

doi:10.1093/plankt/fbn034

	Feeding and egg production of the planktonic copepod Calanus sinicus in spring and autumn in the Yellow Sea, China
	Huo, Yuan-Zi 1,2; Wang, Shi-Wei 1,2; Sun, Song1 ; Li, Chao-Lun1 ; Liu, Meng-Tan 1,2; Sun, S, Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
	2008-06-01
发表期刊	JOURNAL OF PLANKTON RESEARCH
ISSN	0142-7873
卷号	30 期号:6 页码:723-734
文章类型	Article
摘要	Shipboard incubations were conducted in spring (April) and autumn (October/November) 2006 to measure the feeding and egg production rates (EPR) of Calanus sinicus in the Yellow Sea, China. The ingestion rate (2.08-11.46 and 0.26-3.70 mu g C female(-1) day(-1) in spring and autumn, respectively) was positively correlated with microplankton carbon concentrations. In the northern part of the Yellow Sea, feeding on microplankton easily covers the respiratory and production requirements, whereas in the southern part in spring and in the frontal zone in autumn, C. sinicus must ingest alternative food sources. Low ingestion rates, no egg production and the dominance of the fifth copepodite (CV) stage indicated that C. sinicus was in quiescence inside the Yellow Sea Cold Bottom Water (YSCBW) area in autumn. Calanus sinicus ingested ciliates preferentially over other components of the microplankton. The EPR (0.16-12.6 eggs female(-1) day(-1) in spring and 11.4 eggs female(-1) day(-1) at only one station in autumn) increased with ciliate standing stock. Gross growth efficiency (GGE) was 13.4% (3-39%) in spring, which was correlated with the proportion of ciliates in the diet. These results indicate that ciliates have higher nutrient quality than other food items, but the low GGE indicates that the diet of C. sinicus is nutritionally incomplete.; Shipboard incubations were conducted in spring (April) and autumn (October/November) 2006 to measure the feeding and egg production rates (EPR) of Calanus sinicus in the Yellow Sea, China. The ingestion rate (2.08-11.46 and 0.26-3.70 mu g C female(-1) day(-1) in spring and autumn, respectively) was positively correlated with microplankton carbon concentrations. In the northern part of the Yellow Sea, feeding on microplankton easily covers the respiratory and production requirements, whereas in the southern part in spring and in the frontal zone in autumn, C. sinicus must ingest alternative food sources. Low ingestion rates, no egg production and the dominance of the fifth copepodite (CV) stage indicated that C. sinicus was in quiescence inside the Yellow Sea Cold Bottom Water (YSCBW) area in autumn. Calanus sinicus ingested ciliates preferentially over other components of the microplankton. The EPR (0.16-12.6 eggs female(-1) day(-1) in spring and 11.4 eggs female(-1) day(-1) at only one station in autumn) increased with ciliate standing stock. Gross growth efficiency (GGE) was 13.4% (3-39%) in spring, which was correlated with the proportion of ciliates in the diet. These results indicate that ciliates have higher nutrient quality than other food items, but the low GGE indicates that the diet of C. sinicus is nutritionally incomplete.
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1093/plankt/fbn034
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000256285000008
引用统计	被引频次：46[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/1792
专题	海洋生态与环境科学重点实验室
通讯作者	Sun, S, Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Huo, Yuan-Zi,Wang, Shi-Wei,Sun, Song,et al. Feeding and egg production of the planktonic copepod Calanus sinicus in spring and autumn in the Yellow Sea, China[J]. JOURNAL OF PLANKTON RESEARCH,2008,30(6):723-734.
APA	Huo, Yuan-Zi,Wang, Shi-Wei,Sun, Song,Li, Chao-Lun,Liu, Meng-Tan,&Sun, S, Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China.(2008).Feeding and egg production of the planktonic copepod Calanus sinicus in spring and autumn in the Yellow Sea, China.JOURNAL OF PLANKTON RESEARCH,30(6),723-734.
MLA	Huo, Yuan-Zi,et al."Feeding and egg production of the planktonic copepod Calanus sinicus in spring and autumn in the Yellow Sea, China".JOURNAL OF PLANKTON RESEARCH 30.6(2008):723-734.

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