| 我国瓯江口和珠江口凤鲚洄游模式和生境利用研究 |
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| 引用本文： | 姜涛,刘洪波,黄洪辉,杨健.我国瓯江口和珠江口凤鲚洄游模式和生境利用研究[J].海洋学报(英文版),2019,38(8):35-40. |
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| 作者姓名： | 姜涛 刘洪波 黄洪辉 杨健 |
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| 作者单位： | 中国水产科学研究院淡水渔业研究中心, 院长江中下游渔业生态环境评价与资源养护重点实验室, 无锡 214081,中国水产科学研究院淡水渔业研究中心, 院长江中下游渔业生态环境评价与资源养护重点实验室, 无锡 214081,中国水产科学研究院南海水产研究所, 广州 510300,中国水产科学研究院淡水渔业研究中心, 院长江中下游渔业生态环境评价与资源养护重点实验室, 无锡 214081 |
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| 基金项目： | The China Central Governmental Research Institutional Basic Special Research Project from Public Welfare Fund under contract No. 2016PT01; the Open Project for Key Laboratory of South China Sea Fishery Research Exploitation & Utilization of Ministry of Agriculture under contract No. FREU2015-07; the Central Public-interest Scientific Institution Based Research Fund, Freshwater Fisheries Research Center, CAFS under contract No. 2017JBFR02; the National Natural Science Foundation of China under contract No. 31602159; the Natural Science Foundation of Jiangsu Province, China under contract No. BK20160204. |
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| 摘 要： | Habitat use of the tapertail anchovy(Coilia mystus Linnaeus, 1758) from the Oujiang River Estuary and the Zhujiang(Pearl) River Estuary was studied by examining the environmental signatures of Sr and Ca in otoliths using electron probe microanalysis. Individuals from the Oujiang River had higher and varied Sr:Ca ratios(expressed as(Sr:Ca)×1 000, 3.83–13.0 average) in the otolith core regions, suggesting that they were born in brackish or sea waters, and that a freshwater habitat might not be necessary for egg hatching and larval growth.While, individuals from the Zhujiang River had lower Sr:Ca ratios(0.39–2.51 average) in the core regions,suggesting a freshwater origin. After hatching, anchovies from the Zhujiang River migrate downstream to the river estuary close to brackish water. Our results demonstrated varied habitat use for spawning during stages of early life history between the two populations, and suggested that such variations are promoting diversity of life history strategies of this species.
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| 关 键 词： | 凤鲚 瓯江口 珠江口 生境利用 耳石微化学 |
| 收稿时间： | 2018/3/22 0:00:00 |
Migration patterns and habitat use of the tapertail anchovy Coilia mystus in the Oujiang River Estuary and the Zhujiang River Estuary, China |
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| Jiang Tao,Liu Hongbo,Huang Honghui and Yang Jian.Migration patterns and habitat use of the tapertail anchovy Coilia mystus in the Oujiang River Estuary and the Zhujiang River Estuary, China[J].Acta Oceanologica Sinica,2019,38(8):35-40. |
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| Authors: | Jiang Tao Liu Hongbo Huang Honghui and Yang Jian |
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| Institution: | 1.Key Laboratory of Fishery Ecological Environment Assessment and Research Conservation in Middle and Lower Reaches of the Yangtze River, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China2.South China Sea Fishery Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China |
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| Abstract: | Habitat use of the tapertail anchovy (Coilia mystus Linnaeus, 1758) from the Oujiang River Estuary and the Zhujiang (Pearl) River Estuary was studied by examining the environmental signatures of Sr and Ca in otoliths using electron probe microanalysis. Individuals from the Oujiang River had higher and varied Sr:Ca ratios (expressed as (Sr:Ca)×1 000, 3.83–13.0 average) in the otolith core regions, suggesting that they were born in brackish or sea waters, and that a freshwater habitat might not be necessary for egg hatching and larval growth. While, individuals from the Zhujiang River had lower Sr:Ca ratios (0.39–2.51 average) in the core regions, suggesting a freshwater origin. After hatching, anchovies from the Zhujiang River migrate downstream to the river estuary close to brackish water. Our results demonstrated varied habitat use for spawning during stages of early life history between the two populations, and suggested that such variations are promoting diversity of life history strategies of this species. |
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| Keywords: | Coilia mystus Oujiang River Estuary Zhujiang (Pearl) River Estuary habitat use otolith microchemistry |
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