| 基于HSI 模型的印度洋大眼金枪鱼栖息地研究 |
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| 引用本文： | 王家樵,朱国平,许柳雄.基于HSI 模型的印度洋大眼金枪鱼栖息地研究[J].海洋环境科学,2009,28(6). |
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| 作者姓名： | 王家樵 朱国平 许柳雄 |
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| 作者单位： | 1. 集美大学,水产学院,福建,厦门,361021
2. 上海海洋大学,大洋渔业资源可持续开发省部共建教育部重点实验室,上海,201306;上海海洋大学,海洋科学学院,上海市高校大洋生物资源开发和利用重点实验室,上海,201306 |
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| 基金项目： | 上海市重点学科建设项目，上海市教育委员会科研创新项目，上海高校选拔培养优秀青年教师科研专项基金，上海海洋大学博士启动基金 |
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| 摘 要： | 根据日本商业性金枪鱼延绳钓生产数据,应用栖息地指数模型(HSI)和地理信息系统(GIS)图形显示技术对印度洋大眼金枪鱼的栖息地分布进行研究.研究结果表明:印度洋大眼金枪鱼最适合栖息的海域主要集中在70°E以东,15°S以北印度洋海域,栖息地指数值在0.75～1.00;而20°E～50°E,30°S～40°S海域以及65°E～120°E,20°S～40°S之间大部分海域的大眼金枪鱼HSI指数集中在0.25～0.50之间;其余海域的大眼金枪鱼HSI指数均分布在0.50～0.75之间.
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| 关 键 词： | 大眼金枪鱼 印度洋 栖息地指数模型 |
Using HSI model for analyzing the habitat suitability of bigeye tuna(Thunnus obesus) in the Indian Ocean |
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| WANG Jia-qiao,ZHU Guo-ping,XU Liu-xiong.Using HSI model for analyzing the habitat suitability of bigeye tuna(Thunnus obesus) in the Indian Ocean[J].Marine Environmental Science,2009,28(6). |
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| Authors: | WANG Jia-qiao ZHU Guo-ping XU Liu-xiong |
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| Abstract: | In order to quantify spatial variations in the habitat suitability for the bigeye tuna based on data on CPUE and environmental factors in the Indian Ocean collected during 1975 to 1997, spatial models were developed with a Geographical Information System (GIS) technique. With habitat suitability index (HSI) model used to predict the spatial variation on bigeye tuna's distribution according to fluctuations on physical habitat factors. The result indicates that the higher HSI value concentrated in the region of the east of 70°E, and the north of 15°S with range from 0.75 to 1.0, most of the Indian Ocean were with the HSI value from 0.5 to 0.75. and the HSI value on the east of South Africa and 25°S～40°S, 70°E～120°E was range from 0.25～0.5, there were no region with HSI lower than 0.25. |
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| Keywords: | Bigeye tuna the Indian Ocean habitat suitability index |
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