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斯里兰卡海域马林鱼(Makira sp.)的丰度与海表温度之间的关系
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国家自然科学基金（41430968）；广东国际战略研究院重大课题（17ZDA24）；中国政府奖学金（20162570）


Abundance of Marlins in relation to sea surface temperature in Sri Lankan ocean
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    摘要:

    马林鱼（Makira sp.）是斯里兰卡一种有名的海洋鱼类.为了降低在近海区域捕获马林鱼的成本，研究马林鱼的丰度是否受温度的影响十分重要.因此，对2~13.5°N，76.5~88°E区域内2006年的Aqua/MODIS海表温度数据和从斯里兰卡国家水产资源研究和发展机构获取的2006年的马林鱼捕获数据进行了分析.通过对东北、东南、西北和西南海域的数据分别绘图，分析海表温度和鱼类供应的时空变化以及它们之间的关系.研究结果显示：马林鱼最大的鱼获产量区域位于斯里兰卡海域的西部海域；渔业单位捕捞量随着海表温度变化而变化；捕获马林鱼最大频率的海域海表温度为27~28℃.根据经验累积分布频率（ECDF）分析的结果，渔获率与22~31℃海表温度之间有着显著的关系，尤其与26~31℃海表温度的关系最为显著.对于不同的区域，捕捞马林鱼最合适的时间也不同，东北海域的3—5月和7—10月、西北海域的2—6月和8—9月、东南海域的2—7月和9—12月以及西南海域的3月—次年1月均适合马林鱼的捕捞.

    Abstract:

    Marlin (Makira sp.) is one of the famous oceanic fish species in Sri Lankan fisheries.To reduce the risk of redistribution of Marlins in the future with the temperature change,it is important to find out the relationship of Marlins with sea surface temperature.Moreover,by identifying this relationship the cost to find the Marlin abundant places in order to catch them can be reduced.In this study,SST values of the year 2006 from Aqua/MODIS images within the region of latitudes 2.0-13.5°N and longitudes 76.5-88.0°E and the simultaneous Marlin catch data obtained from National Aquatic Resources Research & Development Agency were obtained for the analysis.To describe the relationship between SST and Marlins catch per unit effort (CPUE),the Empirical Cumulative Distribution Frequency (ECDF) analysis was used.The temporal variations of SST and fish availability and the relationship between them were analyzed by plotting the data separately for Northeastern,Southeastern,Northwestern and Southwestern areas.Most of the catches could be seen in the western area off the Sri Lankan waters.The fish CPUE changes could be observed with the changes of the SST.Highest frequency of Marlin catches were within the areas with SST of 27-28℃.According to the ECDF analysis,there was a significant relationship between the changes of CPUE and SST values of 22-31℃.The maximum abundance could be seen within 26-31℃.According to the SST changing pattern and the suitable SST values obtained from ECDF analysis,periods of March to May and July to October in Northeastern area,February to June and August to September in Northwestern area,February to July and September to December in Southeastern area,and March to January in Southwestern area are suitable for Marlin fishery.

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Thushani Suleka Madhubhashini ELEPATHAGE,唐丹玲,王素芬.斯里兰卡海域马林鱼(Makira sp.)的丰度与海表温度之间的关系[J].南京信息工程大学学报(自然科学版),2018,10(3):353-360
Thushani Suleka Madhubhashini ELEPATHAGE, TANG Danling, WANG Sufen. Abundance of Marlins in relation to sea surface temperature in Sri Lankan ocean[J]. Journal of Nanjing University of Information Science & Technology, 2018,10(3):353-360

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  • 收稿日期:2018-04-11
  • 在线发布日期: 2018-07-25

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