| 鱼耳石碳氧同位素在黄、渤海小黄鱼种群识别中的应用 |
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| 引用本文： | 王玉堃,黄建生,唐学玺,金显仕,孙耀.鱼耳石碳氧同位素在黄、渤海小黄鱼种群识别中的应用[J].海洋学报(英文版),2016,35(6):29-33. |
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| 作者姓名： | 王玉堃 黄建生 唐学玺 金显仕 孙耀 |
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| 作者单位： | 中国水产科学院黄海水产研究所, 青岛 266071;中国海洋大学海洋生命学院生态学实验室, 青岛 266003,中国水产科学院黄海水产研究所, 青岛 266071,中国海洋大学海洋生命学院生态学实验室, 青岛 266003,中国水产科学院黄海水产研究所, 青岛 266071,中国水产科学院黄海水产研究所, 青岛 266071 |
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| 摘 要： | Oxygen and carbon isotope ratios(δ~(18)O and δ~(13)C) in otoliths were used to identify the stock structure of small yellow croaker,Larimichthys polyactis.Otoliths were collected from fish at five locations across the Yellow Sea and the Bohai Sea representing most of their distributional range and fisheries areas.The significant differences in the isotopic signatures showed that the five locations could be chemically distinguished and clearly separated,indicating stock subdivision.Correlation of δ~(18)O and δ~(13)C values suggested that population of L.polyactis could be divided into the Bohai Sea group,the southern Yellow Sea group and the central Yellow Sea group.Discriminant analysis of δ~(18)O and δ~(13)C values demonstrated a high significant difference with 85.7% classification accuracy.The spatial separation of L.polyactis indicated a complex stock structure across the Yellow Sea and the Bohai Sea.These results indicate that optimal fisheries management may require a comprehensive consideration on the current spatial arrangements.This study has provided further evidence that measurement of the stable isotopes ratios in otolith can be a valuable tool in the delineation of fishery management units.
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| 关 键 词： | 小黄鱼 耳石 稳定同位素 种群识别 |
| 收稿时间： | 2015/1/25 0:00:00 |
| 修稿时间： | 2015/7/31 0:00:00 |
Stable isotopic composition of otoliths in identification of stock structure of small yellow croaker (Larimichthys polyactis) in China |
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| WANG Yukun,HUANG Jiansheng,TANG Xuexi,JIN Xianshi and SUN Yao.Stable isotopic composition of otoliths in identification of stock structure of small yellow croaker (Larimichthys polyactis) in China[J].Acta Oceanologica Sinica,2016,35(6):29-33. |
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| Authors: | WANG Yukun HUANG Jiansheng TANG Xuexi JIN Xianshi and SUN Yao |
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| Institution: | 1.Laboratory of Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China;Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China2.Laboratory of Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China3.Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China |
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| Abstract: | Oxygen and carbon isotope ratios (δ 18O and δ 13C) in otoliths were used to identify the stock structure of small yellow croaker, Larimichthys polyactis. Otoliths were collected from fish at five locations across the Yellow Sea and the Bohai Sea representing most of their distributional range and fisheries areas. The significant differences in the isotopic signatures showed that the five locations could be chemically distinguished and clearly separated, indicating stock subdivision. Correlation of δ 18O and δ 13C values suggested that population of L. polyactis could be divided into the Bohai Sea group, the southern Yellow Sea group and the central Yellow Sea group. Discriminant analysis of δ 18O and δ 13C values demonstrated a high significant difference with 85.7% classification accuracy. The spatial separation of L. polyactis indicated a complex stock structure across the Yellow Sea and the Bohai Sea. These results indicate that optimal fisheries management may require a comprehensive consideration on the current spatial arrangements. This study has provided further evidence that measurement of the stable isotopes ratios in otolith can be a valuable tool in the delineation of fishery management units. |
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| Keywords: | small yellow croaker otolith stable isotope chemistry stock structure |
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