QQ客服 官方微博 反馈留言

	Grazing impact of copepods on phytoplankton in the Bohai Sea
	Li, CL; Wang, R; Sun, S
刊名	ESTUARINE COASTAL AND SHELF SCIENCE
	2003-11-01
卷号	58期号:3页码:487-498
关键词	Copepod Feeding Bohai Sea
ISSN号	0272-7714
DOI	10.1016/S0272-7714(03)00129-X
文献子类	Article
英文摘要	During spring (April/May 1999) and autumn (September/October 1998) cruises in the Bohai Sea, China, copepods were the dominant components of mesozooplankton, the most abundant species being Calanus sinicus, Centropages mcmurrichi, Paracalanus parvus, Acartia bifilosa and Oithona similis. Pigment ingestion rates by three size classes of copepods (200-500, 500-1000 and > 1000 mum) were measured. In the south of the investigation area, gut pigment content (GPC), individual pigment-specific ingestion rates and grazing impacts on phytoplankton were lower in spring than in autumn. In the central area, GPC and individual pigment-specific ingestion rates were higher in spring than in autumn. The grazing impact on phytoplankton by the copepod assemblages was lower in spring than in autumn, however, because of the relatively smaller biomass in spring. In the western area where the Bohai Sea joins the Yellow Sea, GPC, individual pigment-specific ingestion rates and grazing impacts on phytoplankton were higher in spring than in autumn.; During spring (April/May 1999) and autumn (September/October 1998) cruises in the Bohai Sea, China, copepods were the dominant components of mesozooplankton, the most abundant species being Calanus sinicus, Centropages mcmurrichi, Paracalanus parvus, Acartia bifilosa and Oithona similis. Pigment ingestion rates by three size classes of copepods (200-500, 500-1000 and > 1000 mum) were measured. In the south of the investigation area, gut pigment content (GPC), individual pigment-specific ingestion rates and grazing impacts on phytoplankton were lower in spring than in autumn. In the central area, GPC and individual pigment-specific ingestion rates were higher in spring than in autumn. The grazing impact on phytoplankton by the copepod assemblages was lower in spring than in autumn, however, because of the relatively smaller biomass in spring. In the western area where the Bohai Sea joins the Yellow Sea, GPC, individual pigment-specific ingestion rates and grazing impacts on phytoplankton were higher in spring than in autumn. Among the three size groups, the small-sized animals (200-500 mum) contributed more than 50% (range 38-98%) of the total copepod grazing during both cruises. The grazing impact on phytoplankton by copepods was equivalent to 11.9% (range 3.0-37.1%) of the chlorophyll-a standing stock and 53.3% (range 21.4-91.4%) of the primary production during the spring cruise. Grazing impact was equivalent to 6.3% (range 2.0-11.6%) of the chlorophyll-a standing stock and >100% (range 25.7-141.6%) of the primary production during the autumn cruise. The copepod community apparently consumed only a modest proportion of the standing stock of phytoplankton during spring and autumn blooms. They did, however, sometimes graze a significant proportion of daily primary production and hence were presumably able to limit the rate of further accumulation of phytoplankton, or even to prevent it. (C) 2003 Elsevier Ltd. All rights reserved.
学科主题	Marine & Freshwater Biology ; Oceanography
URL标识	查看原文
语种	英语
WOS记录号	WOS:000186857200008
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/2783]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	Acad Sinica, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Li, CL,Wang, R,Sun, S. Grazing impact of copepods on phytoplankton in the Bohai Sea[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2003,58(3):487-498.
APA	Li, CL,Wang, R,&Sun, S.(2003).Grazing impact of copepods on phytoplankton in the Bohai Sea.ESTUARINE COASTAL AND SHELF SCIENCE,58(3),487-498.
MLA	Li, CL,et al."Grazing impact of copepods on phytoplankton in the Bohai Sea".ESTUARINE COASTAL AND SHELF SCIENCE 58.3(2003):487-498.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。