• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ICES Journal of Marine Science >Movements and geographic distribution of juvenile bluefin tuna in the Northeast Atlantic, described through internal and satellite archival tags
【24h】

Movements and geographic distribution of juvenile bluefin tuna in the Northeast Atlantic, described through internal and satellite archival tags

机译：通过内部和卫星档案标签描述了东北大西洋少年蓝鳍金枪鱼的活动和地理分布

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

From 2005 to 2010, 136 internal archival tags and 29 pop-up satellite archival tags were used to track juvenile Atlantic bluefin tuna in the Bay of Biscay. Information from 15 pop-up and 5 internal archival tags was recovered. The analysis was adapted for a common treatment of both types of tag data, allowing classification of overwintering distribution patterns, fidelity to the Bay of Biscay feeding area, as well as of horizontal and vertical habitat utilization. Results show substantial geographic dispersion from autumn to spring, with high habitat concentration in the Bay of Biscay during summer, when bluefin tuna inhabit in the mixed layer. Of the individuals that left the Bay of Biscay towards the end of the year, a high percentage returned the next year, suggesting a strong fidelity to the area. Thirty-three percent of records during the overwintering periods revealed residency in the Bay of Biscay and surrounding areas. Half of the fish overwintered in the mid-Atlantic, near the Azores or Madeira Islands, while three (17%) made trans-Atlantic round trips, and one individual travelled to and remained off the eastern coast of the United States. These findings challenge previous assumptions regarding the seasonality and annual movements of bluefin tuna from the Bay of Biscay, while demonstrating extensive spatio-temporal dispersion.
机译：从2005年到2010年，使用了136个内部归档标签和29个弹出式卫星归档标签来跟踪比斯开湾的大西洋大西洋蓝鳍金枪鱼。从15个弹出窗口和5个内部归档标签中恢复了信息。该分析适用于两种类型的标签数据的通用处理，从而可以对越冬分布模式进行分类，对Biscay湾觅食区的保真度以及水平和垂直栖息地的利用。结果表明，从秋季到春季，地理分布较为分散，夏季比斯开湾的栖息地集中度很高，当时蓝鳍金枪鱼栖息在混合层中。在年底之前离开比斯开湾的个人中，第二年返回的比例很高，这表明该地区忠诚度很高。在越冬期间，有33％的记录显示在比斯开湾及其周边地区居住。一半的鱼类在大西洋中部，亚速尔群岛或马德拉群岛附近越冬，而三名（17％）越过大西洋往返，其中一个人去了美国东部海岸并离开了美国东部海岸。这些发现挑战了先前关于比斯开湾蓝鳍金枪鱼的季节性和年度移动的假设，同时证明了时空分布广泛。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号