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| Copepod feeding strategies in the epipelagic to bathypelagic zone of Prydz Bay, Antarctica: an assessment through fatty acids and stable isotopes | |
Yang, Guang1; Li, Chaolun1,2 ; Wang, Yanqing; Peng, Quancai2,3
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| 2018-07-01 | |
| 发表期刊 | POLAR BIOLOGY
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| ISSN | 0722-4060 |
| 卷号 | 41期号:7页码:1307-1317 |
| 文章类型 | Article |
| 摘要 | Information on the feeding strategies and dietary preferences of copepods from epipelagic to bathypelagic zones of the Southern Ocean are important for understanding the role of zooplankton in carbon and energy transfers through the food web. Using fatty acids (FA) and stable isotopic biomarkers, the present study investigated the feeding strategies and trophic niches of seven dominant copepod species (Calanoides acutus, Calanus propinquus, Metridia gerlachei, Rhincalanus gigas, Paraeuchaeta antarctica, Aetideopsis minor and Bathycalanus richardi) collected from various water strata of Prydz Bay, Antarctica during the austral summer of 2013. Copepods showed species-specific and depth-related differences in FA biomarkers and stable isotopic values. C. acutus and C. propinquus had the largest content of long-chain monounsaturated FA, while M. gerlachei had the smallest FA content (approximately 40 mg g(-1) dry weight) and the highest 18:1n-9. FA of R. gigas were dominated by short- and medium-length carbon chains. The species P. antarctica and meso- and bathypelagic species A. minor and B. richardi showed relatively higher levels of carnivorous FA ratios and delta N-15 values. Higher delta N-15 values in M. gerlachei and P. antarctica dwelled in the mesopelagic and bathypelagic zone indicated the high diversity of feeding strategies of these copepods responding to the changing food availability. The flexible feeding strategies of copepods could enable them to utilise different ecological niches and minimise inter- and intra-specific competition in the Prydz Bay. |
| 关键词 | Copepods Prydz Bay Southern Ocean Trophic biomarker Dietary composition Fatty acids Stable isotopes |
| 学科领域 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| DOI | 10.1007/s00300-018-2286-5 |
| 收录类别 | SCIE |
| 语种 | 英语 |
| WOS研究方向 | Biodiversity Conservation ; Ecology |
| WOS记录号 | WOS:000437102400001 |
| 出版者 | SPRINGER |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/157560 |
| 专题 | 海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Res Ctr Anal & Measurement, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, 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 | Yang, Guang,Li, Chaolun,Wang, Yanqing,et al. Copepod feeding strategies in the epipelagic to bathypelagic zone of Prydz Bay, Antarctica: an assessment through fatty acids and stable isotopes[J]. POLAR BIOLOGY,2018,41(7):1307-1317. |
| APA | Yang, Guang,Li, Chaolun,Wang, Yanqing,&Peng, Quancai.(2018).Copepod feeding strategies in the epipelagic to bathypelagic zone of Prydz Bay, Antarctica: an assessment through fatty acids and stable isotopes.POLAR BIOLOGY,41(7),1307-1317. |
| MLA | Yang, Guang,et al."Copepod feeding strategies in the epipelagic to bathypelagic zone of Prydz Bay, Antarctica: an assessment through fatty acids and stable isotopes".POLAR BIOLOGY 41.7(2018):1307-1317. |
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| Copepod feeding stra（1773KB） | 期刊论文 | 作者接受稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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