Contribution of Sepioteuthis sp. 1 and Sepioteuthis sp. 2 to oval squid fishery stocks in western Japan.
Contribution of Sepioteuthis sp. 1 and Sepioteuthis sp. 2 to oval squid fishery stocks in western Japan.
复制标题
Sepioteuthis sp 的贡献。
DOI：
10.1007/s12562-016-0988-6
复制
发表时间：
2016
影响因子：
1.9
通讯作者：
Tetsuya Umino
中科院分区：
文献类型：
--
作者：
Satoshi Tomano;Gustavo Sanchez;Kentaro Kawai;Noriyasu Kasaoka;Yukio Ueta;Tetsuya Umino
Sepioteuthissp. 1和Sepioteuthissp.利用微卫星DNA和线粒体细胞色素氧化酶亚基I的部分序列，对日本西部2-卵圆乌贼渔业资源进行了研究。共采集到乌贼属1718种。对19个种群的个体进行了鉴定，以确定每个物种在渔业种群中的比例。还对日本西南部种子岛和屋久岛的样品进行了检查，以确定深度分布。用DNA鉴定233例（17.3%）为Sepioteuthissp. 1和1421只（82.7%）。2.Sepioteuthissp. 1在日本大陆太平洋一侧发现，但主要分布在种子岛（77. 1%）和屋久岛群岛（100%），表明其分布受到较暖的黑潮沃茨的限制。与此相反，Sepioteuthissp. 2是最常见的在日本大陆。在10 ~ 53 m的水深范围内，Sepioteuthissp. 2只在2 ~ 30 m深处被捕获。这两个物种的空间和水深分布的差异可能反映了温度偏好，产卵深度和迁移模式的差异。我们的研究结果将是有用的管理渔业资源和产卵场的两个物种。
The relative contribution ofSepioteuthissp. 1 andSepioteuthissp. 2 to oval squid fishery stocks in western Japan was examined using microsatellite DNA and partial sequences of mitochondrial cytochrome oxidase subunit I. A total of 1718Sepioteuthisspp. individuals from 19 populations were identified to determine the proportion of each species in fishery stocks. Samples from Tanegashima and Yakushima Islands in southwestern Japan were also examined to determine depth distributions. DNA was used to refer 233 (17.3 %) individuals toSepioteuthissp. 1 and 1421 (82.7 %) individuals toSepioteuthissp. 2.Sepioteuthissp. 1 was found on the Pacific side of mainland Japan, but was predominant in Tanegashima (77.1 %) and Yakushima Islands (100 %), suggesting its distribution was limited by the warmer waters of the Kuroshio Current. In contrast,Sepioteuthissp. 2 was most commonly found around mainland Japan. WhereasSepioteuthissp.1 was caught in 10 to 53 m depth,Sepioteuthissp. 2 was caught in 2 to 30 m depth. Differences in the spatial and bathymetric distributions of these two species might reflect differences in temperature preference, spawning depth, and migration patterns. Our results would be useful for managing the fishery stocks and spawning grounds of both species.