Flexible feeding patterns of copepod Centropages tenuiremis in fluctuating conditions: a possible survival strategy to cope with disturbance
文献类型：期刊论文
| 作者 | Xu, Cuilian; Hu, Simin; Guo, Zhiling; Li, Tao ; Huang, Hui; Chan, Leo Lai; Liu, Sheng
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| 刊名 | ACTA OCEANOLOGICA SINICA
 |
| 出版日期 | 2020-02 |
| 卷号 | 39期号:2页码:59-68 |
| 关键词 | Centropages feeding response feeding strategy coastal ecosystem Daya Bay |
| ISSN号 | 0253-505X |
| 英文摘要 | Centropages tenuiremis is a species with a wide distribution range in disturbed coastal waters. However, due to a lack of dietary information, it remains unclear as to how they maintain such dominance in fluctuating conditions. In this study, C. tenuiremis was collected from the Daya Bay Nuclear Power Plant both in inlet and outfall regions at 06:00, 12:00 and 18:00 on April 27, 2011 and their in situ diet was analyzed using a PCR protocol targeting 18S ribosomal genes. Thirty-four species of prey organisms were identified totally, including Dinophyta, Baciliariophyta, Viridiplantae, Rhizaria, Apicomplexa, Chordata, Mollusca, Arthropoda and Fungi, indicating an obvious omnivorous feeding habit of C. tenuiremis. Centropages tenuiremis obviously exhibited spatial and temporal variations in diet composition. More plant prey (land plants and phytoplankton) were consumed in the morning (similar to 50%), while more animal prey (metazoans and protozoans) were ingested at midday and night (60%-70%). Furthermore, a more diverse diet was detected in the outfall region (10-11 taxa), where the temperatures were relatively higher and more fluctuating, than in the control region (5-10 taxa). This finding indicated that C. tenuiremis could potentially expand its food spectrum under stressful condition. Specifically, C. tenuiremis exhibited phytoplankton preference (58.62%-67.64%) in the outfall region with a lower omnivory index (0.27-0.35) than in the control region (0.51-0.95). However, phytoplankton density was lower than that in the control region, suggesting a possible herbivorous tendency of C. tenuiremis under elevated temperatures to balance the energy acquirement and feeding effort. The flexible food choices of C. tenuiremis observed here could effectively buffer environmental fluctuations and might be an important survival strategy in coastal ecosystems. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44692]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xu, Cuilian,Hu, Simin,Guo, Zhiling,et al. Flexible feeding patterns of copepod Centropages tenuiremis in fluctuating conditions: a possible survival strategy to cope with disturbance[J]. ACTA OCEANOLOGICA SINICA,2020,39(2):59-68. |
| APA | Xu, Cuilian.,Hu, Simin.,Guo, Zhiling.,Li, Tao.,Huang, Hui.,...&Liu, Sheng.(2020).Flexible feeding patterns of copepod Centropages tenuiremis in fluctuating conditions: a possible survival strategy to cope with disturbance.ACTA OCEANOLOGICA SINICA,39(2),59-68. |
| MLA | Xu, Cuilian,et al."Flexible feeding patterns of copepod Centropages tenuiremis in fluctuating conditions: a possible survival strategy to cope with disturbance".ACTA OCEANOLOGICA SINICA 39.2(2020):59-68. |
入库方式： OAI收割
来源：生态环境研究中心
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