Summer feeding activities of zooplankton in Prydz Bay, Antarctica
文献类型：期刊论文
| 作者 | Li, CL ; Sun, S; Zhang, GT; Ji, P
|
| 刊名 | POLAR BIOLOGY
 |
| 出版日期 | 2001-12-01 |
| 卷号 | 24期号:12页码:892-900 |
| 关键词 | Marginal Ice-zone Krill Euphausia-superba Gut Evacuation Rates Midwater Food Web Weddell Sea Southern-ocean Grazing Rates Ross Sea Phytoplankton Copepods |
| ISSN号 | 0722-4060 |
| 文献子类 | Article |
| 英文摘要 | Grazing of dominant zooplankton copepods (Calanoides acutus. and Metridia gerlachei), salps (Salpa thompsoni) and microzooplankton was determined during the austral summer of 1998/1999 at the seasonal ice zone of the Prydz Bay region. The objective was to measure the ingestion rates of zooplankton at the seasonal ice zone, so as to evaluate the importance of different groups of zooplankton in their grazing impact on phytoplankton standing stock and primary production. Grazing by copepods was low, and accounted for less than or equal to 1% of phytoplankton standing stocks and 3.8-12.5% of primary production for both species during this study, even the ingestion rates of individuals were at a high level compared with previous reports. S. thompsoni exhibited a relatively high grazing impact on primary production (72%) in the north of our investigation area. The highest grazing impact on phytoplankton was exerted by microzooplankton during this investigation, and accounted for 10-65% of the standing stock of phytoplankton and 34-100% of potential daily primary production. We concluded that microzooplankton was the dominant phytoplankton consumer in this study area. Salps also played an important role in control of phytoplankton where swarming occurred. The grazing of copepods had a relatively small effect on phytoplankton biomass development.; Grazing of dominant zooplankton copepods (Calanoides acutus. and Metridia gerlachei), salps (Salpa thompsoni) and microzooplankton was determined during the austral summer of 1998/1999 at the seasonal ice zone of the Prydz Bay region. The objective was to measure the ingestion rates of zooplankton at the seasonal ice zone, so as to evaluate the importance of different groups of zooplankton in their grazing impact on phytoplankton standing stock and primary production. Grazing by copepods was low, and accounted for less than or equal to 1% of phytoplankton standing stocks and 3.8-12.5% of primary production for both species during this study, even the ingestion rates of individuals were at a high level compared with previous reports. S. thompsoni exhibited a relatively high grazing impact on primary production (72%) in the north of our investigation area. The highest grazing impact on phytoplankton was exerted by microzooplankton during this investigation, and accounted for 10-65% of the standing stock of phytoplankton and 34-100% of potential daily primary production. We concluded that microzooplankton was the dominant phytoplankton consumer in this study area. Salps also played an important role in control of phytoplankton where swarming occurred. The grazing of copepods had a relatively small effect on phytoplankton biomass development. |
| 学科主题 | Biodiversity Conservation ; Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000172557500003 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/2833]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 海洋研究所_胶州湾海洋生态系统国家野外研究站 |
| 作者单位 | Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, CL,Sun, S,Zhang, GT,et al. Summer feeding activities of zooplankton in Prydz Bay, Antarctica[J]. POLAR BIOLOGY,2001,24(12):892-900. |
| APA | Li, CL,Sun, S,Zhang, GT,&Ji, P.(2001).Summer feeding activities of zooplankton in Prydz Bay, Antarctica.POLAR BIOLOGY,24(12),892-900. |
| MLA | Li, CL,et al."Summer feeding activities of zooplankton in Prydz Bay, Antarctica".POLAR BIOLOGY 24.12(2001):892-900. |
入库方式： OAI收割
来源：海洋研究所
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