• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine ecology progress series >Oceanic movements, site fidelity and deep diving in harbour porpoises from Greenland show limited similarities to animals from the North Sea
【24h】

Oceanic movements, site fidelity and deep diving in harbour porpoises from Greenland show limited similarities to animals from the North Sea

机译：格陵兰海港海豚的海洋运动，场地保真度和深度潜水显示出与北海动物的相似性有限

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

Harbour porpoises Phocoena phocoena are common in continental shelf areas of the North Atlantic, but little information is available on their occurrence outside coastal areas. In this study, 30 harbour porpoises were actively caught in West Greenland and instrumented with satellite transmitters to document their seasonal movements and diving behaviour. The porpoises displayed long-range oceanic movements within the North Atlantic, especially during winter/spring where they moved over areas with water depths 2500 m. While offshore, 2 females demonstrated an average maximum dive depth of 248 m, with the deepest dive reaching 410 m. This behaviour is in contrast to 71 porpoises tagged in Danish waters of the North Sea which did not leave the continental shelf but showed a preference for areas with shallow waters year round, even when at the edge of the continental shelf where greater depths were available. Six tags from Greenland transmitted long enough (up to 3 yr) to demonstrate extensive movements and strong site fidelity to the tagging site in West Greenland the following summer. This study documents that harbour porpoises use oceanic habitats and can dive to depths that enable mesopelagic foraging, while repeatedly demonstrating summer site fidelity to coastal areas.
机译：港鼠海豚（Phocoena phocoena）在北大西洋的大陆架地区很常见，但是鲜有关于它们在沿海地区以外发生的信息。在这项研究中，西格陵兰积极捕获了30只海豚，并配备了卫星发射器以记录其季节性运动和潜水行为。海豚在北大西洋内表现出远距离的海洋运动，尤其是在冬季/春季，它们在水深大于2500 m的区域移动。在海上时，有2位女性的平均最大潜水深度为248 m，最深的潜水深度为410 m。这种行为与北海的丹麦海域标有71只海豚相反，该海豚没有离开大陆架，但对全年浅水区域表现出了偏爱，即使在大陆架边缘有较大深度的地区也是如此。来自格陵兰岛的六个标签传输了足够长的时间（长达3年），以证明第二个夏天到西格陵兰岛的标签站点发生了广泛的移动和强大的站点保真度。这项研究表明，海豚栖息在海洋中，可以潜入深海中觅食，同时反复向沿海地区证明了夏季的保真度。

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