Spring and autumn reproduction of Calanus sinicus in the Yellow Sea

	Spring and autumn reproduction of Calanus sinicus in the Yellow Sea
	Wang, Shiwei 1,2; Li, Chaolun 1; Sun, Song 1,3; Ning, Xiuren 4; Zhang, Wuchang 1
刊名	MARINE ECOLOGY PROGRESS SERIES
	2009
卷号	379 页码:123-133
关键词	Calanus Sinicus Reproduction Gonad Maturity Food Limitation Yellow Sea
文献子类	Article
英文摘要	The fecundity, hatching success and naupliar survival of Calanus sinicus were studied in the Yellow Sea during research cruises in April and October 2006, with emphasis on the regulation of reproduction. During both cruises, the egg production rate (EPR) showed large spatial variations (0 to 25.4 eggs female(-1) d(-1)), generally coinciding with the food availability. In April, the abundant phytoplankton and ciliates in the study area supported active reproduction, which would probably initiate the annual population development. In October, females remained immature in the Yellow Sea Cold Water Mass, likely due to the unfavorable environment (poor food and low temperature). However, reproduction and recruitment were high in the neritic region, which may explain the local population recovery in late autumn. Hatching success varied markedly among stations in April (4 to 85%), whereas it was high overall in the neritic region during October (> 90%). Based on the potential recruitment rates, the spring recruitment would be more important for the annual population dynamics, Female gonad maturity, body size and lipid reserve were examined in relation to fecundity. Regression analyses suggested that the reproductive index (defined as the proportion of females with mature gonads) could be an indicator for the EPR of C. sinicus. Among the regulating factors, external food (ciliates and phytoplankton) seems essential for reproduction, whereas inner lipid reserve may mainly serve metabolic needs. Moreover, fecundity is positively related to body size but independent of temperature, which might exert indirect influences on reproduction.
WOS关键词	LIFE-HISTORY STRATEGIES ; EGG-PRODUCTION RATES ; COLD BOTTOM WATER ; PLANKTONIC COPEPOD ; CALANOIDES-CARINATUS ; PRESERVED SAMPLES ; LIPID STORAGE ; FINMARCHICUS ; TEMPERATURE ; HELGOLANDICUS
语种	英语
出版者	INTER-RESEARCH
WOS记录号	WOS:000265625200010
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/67955]
专题	中国科学院地理科学与资源研究所
通讯作者	Sun, Song
作者单位	1.Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Ecosyst Res Network, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao 266071, Peoples R China 4.State Ocean Adm, Key Lab Marine Biol & Biogeochem, Inst Oceanog 2, Hangzhou 310012, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shiwei,Li, Chaolun,Sun, Song,et al. Spring and autumn reproduction of Calanus sinicus in the Yellow Sea[J]. MARINE ECOLOGY PROGRESS SERIES,2009,379:123-133.
APA	Wang, Shiwei,Li, Chaolun,Sun, Song,Ning, Xiuren,&Zhang, Wuchang.(2009).Spring and autumn reproduction of Calanus sinicus in the Yellow Sea.MARINE ECOLOGY PROGRESS SERIES,379,123-133.
MLA	Wang, Shiwei,et al."Spring and autumn reproduction of Calanus sinicus in the Yellow Sea".MARINE ECOLOGY PROGRESS SERIES 379(2009):123-133.