| 营养限制对三种浮游动物的影响 |
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| 引用本文： | 陈蕾,李超伦,周孔霖,时永强,刘梦坛.营养限制对三种浮游动物的影响[J].海洋学报(英文版),2018,37(4):58-68. |
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| 作者姓名： | 陈蕾 李超伦 周孔霖 时永强 刘梦坛 |
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| 作者单位： | 中国科学院海洋研究所, 海洋生态与环境科学重点实验室, 青岛 266071, 中国;中国科学院大学, 北京 100049, 中国,中国科学院海洋研究所, 海洋生态与环境科学重点实验室, 青岛 266071, 中国;中国科学院大学, 北京 100049, 中国;海洋国家实验室海洋生态与环境科学功能实验室, 青岛 266071, 中国;中国科学院海洋研究所, 深海研究中心, 青岛 266071, 中国,国家海洋局第二海洋研究所, 海洋生态系统与生物地球化学重点实验室, 杭州 310012, 中国,中国水产科学研究院黄海水产研究所, 农业部海洋渔业可持续发展重点实验室, 青岛 266071, 中国,胶州湾海洋生态系统国家野外科学观察研究站, 青岛 266071, 中国 |
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| 基金项目： | The National Key R & D Program of China under contract No. 2017YFC1404401; the National Natural Science Foundation of China under contract No. 41476139; the National Basic Research Program of China under contract No. 2015CB452903. |
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| 摘 要： | Nutrient imbalance—a mismatch in nutrient ratios between the available food supply and the demands of consumers—has the potential to be transported up food chains,exposing zooplankton to nutrient limitations.In this study,the response of Calanus sinicus(copepod),Moina mongolica(cladocera),and Brachionus plicatilis(rotifer) to nutrient-limited(no-limited,P-limited,and N-limited) food were evaluated from the perspective of growth,reproduction,and stoichiometric homoeostasis.The results indicated that the growth of three species was suppressed under nutrient-limited(especially P-limited) conditions.However,the effect of nutrient limitations on their reproduction was species-specific.For C.sinicus,the dietary UFA(unsaturated fatty acid) as a major phospholipid component affected their egg production and total FA supporting energy promoted the hatchability of eggs.Furthermore,excess carbon in the diet promoted egg production but reduced hatching success.For M.mongolica,nutritional(P and UFA) and energy(total FA) support affected their fecundity.B.plicatilis fecundity exhibited the same pattern of growth(no-limitedN-limitedP-limited).In terms of stoichiometric homeostasis,B.plicatilis' s elemental compositions were less likely to be affected by nutrient limitations than M.mongolica.We suggest that the effects of nutrient imbalances could potentially become an evolutionary force affecting ecosystem structure and stability in eutrophic waters.
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| 关 键 词： | 浮游动物 营养元素 生长 繁殖 化学计量学内稳态 |
| 收稿时间： | 2017/5/24 0:00:00 |
Effects of nutrient limitations on three species of zooplankton |
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| CHEN Lei,LI Chaolun,ZHOU Konglin,SHI Yongqiang and LIU Mengtan.Effects of nutrient limitations on three species of zooplankton[J].Acta Oceanologica Sinica,2018,37(4):58-68. |
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| Authors: | CHEN Lei LI Chaolun ZHOU Konglin SHI Yongqiang and LIU Mengtan |
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| Institution: | Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Sciences, Beijing 100049, China,Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Sciences, Beijing 100049, China;Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China;Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China,Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China,Key Laboratory of Sustainable Development of Marine Fisheries of Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China and Jiaozhou Bay Marine Ecosystem Research Station, Chinese Ecosystem Research Network, Qingdao 266071, China |
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| Abstract: | Nutrient imbalance-a mismatch in nutrient ratios between the available food supply and the demands of consumers-has the potential to be transported up food chains, exposing zooplankton to nutrient limitations. In this study, the response of Calanus sinicus (copepod), Moina mongolica (cladocera), and Brachionus plicatilis (rotifer) to nutrient-limited (no-limited, P-limited, and N-limited) food were evaluated from the perspective of growth, reproduction, and stoichiometric homoeostasis. The results indicated that the growth of three species was suppressed under nutrient-limited (especially P-limited) conditions. However, the effect of nutrient limitations on their reproduction was species-specific. For C. sinicus, the dietary UFA (unsaturated fatty acid) as a major phospholipid component affected their egg production and total FA supporting energy promoted the hatchability of eggs. Furthermore, excess carbon in the diet promoted egg production but reduced hatching success. For M. mongolica, nutritional (P and UFA) and energy (total FA) support affected their fecundity. B. plicatilis fecundity exhibited the same pattern of growth (no-limited>N-limited>P-limited). In terms of stoichiometric homeostasis, B. plicatilis''s elemental compositions were less likely to be affected by nutrient limitations than M. mongolica. We suggest that the effects of nutrient imbalances could potentially become an evolutionary force affecting ecosystem structure and stability in eutrophic waters. |
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| Keywords: | zooplankton nutrient growth reproduction stoichiometric homoeostasis |
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