| 瘦尾胸刺水蚤适应近岸多变环境的灵活摄食策略 |
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| 引用本文： | 徐翠莲,胡思敏,郭志灵,李涛,黄晖,陈荔,刘胜.瘦尾胸刺水蚤适应近岸多变环境的灵活摄食策略[J].海洋学报(英文版),2020,39(2):59-68. |
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| 作者姓名： | 徐翠莲 胡思敏 郭志灵 李涛 黄晖 陈荔 刘胜 |
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| 作者单位： | 中国科学院南海海洋研究所, 中国科学院热带海洋生物资源与生态重点实验室; 广东省应用海洋生物学重点实验室, 广东 广州 510301;中国科学院大学, 北京 100049,中国科学院南海海洋研究所, 中国科学院热带海洋生物资源与生态重点实验室; 广东省应用海洋生物学重点实验室, 广东 广州 510301,中国科学院南海海洋研究所, 中国科学院热带海洋生物资源与生态重点实验室; 广东省应用海洋生物学重点实验室, 广东 广州 510301;中国科学院大学, 北京 100049;中国科学院生态环境研究中心, 环境化学与生态毒理学国家重点实验室, 北京 100049,中国科学院南海海洋研究所, 中国科学院热带海洋生物资源与生态重点实验室; 广东省应用海洋生物学重点实验室, 广东 广州 510301;中国科学院海南热带海洋生物实验站, 海南 三亚 572000,中国科学院南海海洋研究所, 中国科学院热带海洋生物资源与生态重点实验室; 广东省应用海洋生物学重点实验室, 广东 广州 510301;中国科学院海南热带海洋生物实验站, 海南 三亚 572000,深圳市海洋生物多样性可持续利用重点实验室, 香港城市大学深圳研究院海洋与人类健康研究中心, 深圳 518057;香港城市大学海洋污染国家重点实验室, 香港 999077,中国科学院南海海洋研究所, 中国科学院热带海洋生物资源与生态重点实验室; 广东省应用海洋生物学重点实验室, 广东 广州 510301 |
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| 基金项目： | The Strategic Priority Research Program of the Chinese Academy of Sciences under contract No. XDA13020100; the National Key Research and Development Project of China under contract No. 2016YFC0502800; the Science and Technology Planning Projects of Guangdong Province, China under contract Nos 2015A020216013 and 2017B030314052. |
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| 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(~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.
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| 关 键 词： | Centropages FEEDING response FEEDING strategy COASTAL ECOSYSTEM DAYA BAY |
| 收稿时间： | 2018/8/23 0:00:00 |
Flexible feeding patterns of copepod Centropages tenuiremis in fluctuating conditions: a possible survival strategy to cope with disturbance |
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| Xu Cuilian,Hu Simin,Guo Zhiling,Li Tao,Huang Hui,Chan Leo Lai and Liu Sheng.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. |
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| Authors: | Xu Cuilian Hu Simin Guo Zhiling Li Tao Huang Hui Chan Leo Lai and Liu Sheng |
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| Affiliation: | Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;University of Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;University of Chinese Academy of Sciences, Beijing 100049, China;State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya 572000, China;Shenzhen Key Laboratory for the Sustainable Use of Marine Biodiversity, Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China;State Key Laboratory in Marine Pollution, City University of Hong Kong, Hong Kong 999077, China |
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| Abstract: | 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 (~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. |
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| Keywords: | Centropages feeding response feeding strategy coastal ecosystem Daya Bay |
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