...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zoological Science >Spreading of River Water Guides Migratory Behavior of Homing Chum Salmon Oncorhynchus keta in Otsuchi Bay, a Narrow Inlet with Multiple River Flows
【24h】

Spreading of River Water Guides Migratory Behavior of Homing Chum Salmon Oncorhynchus keta in Otsuchi Bay, a Narrow Inlet with Multiple River Flows

机译：河水的传播指导俄罗斯湾迁移何种河流湾荷族鲑鱼的迁徙行为，多河流流动的狭窄入口

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

The Sanriku-ria coast of Japan, a homing area for chum salmon, Oncorhynchus keta, is characterized by a large number of small closed bays into which one or multiple short rivers flow. The present behavioral investigation of chum salmon in this region was designed to gain deeper insight into the migration of chum salmon to their natal rivers. Eighty-three fish caught at the middle part of Otsuchi Bay were tracked using an acoustic transmitter in the narrow inlet into which flow three rivers: the Otsuchi, Koduchi, and Unosumai. The majority of 18 fish that entered the Unosumai River, which flows into the southwest side of the bay, directly approached the river along the southern coast. More than half of fish that entered the Otsuchi and Koduchi Rivers, which flow into the northwest side, also migrated into the inner bay via the southerly route, and then entered these rivers frequently after passing the mouth of the Unosumai River. In the inner bay, the salinity of sea surface water suggested that water from the three rivers circulates in a counterclockwise direction at a depth of less than 1.0 m, flowing eastwardly along the southern coast. The observed migratory paths of homing salmon in Otsuchi Bay thus correspond well with the counterflow of surface river water in the bay. The present results suggest that homing migration of salmon in the Sanriku narrow inlet is guided by natal river flows.
机译：日本的Sanriku-Ria海岸，一艘Chum Salmon，Oncorhynchus Keta的归巢区，其特点是大量小封闭式海湾，其中一个或多个短河流流入其中。本区域中鲑鱼的目前的行为调查旨在深入了解鲑鱼对其纳塔瓦河的迁移。在狭窄的入口处的声音发射器跟踪在Otsuchi Bay的中间部分捕获的八十三条鱼在流量三河流中：otsuchi，koduchi和unosumai。大多数进入未遂河的18条鱼流入海湾西南部，直接沿着南部海岸接近河流。进入Otsuchi和Koduchi Rivers的一半以上的鱼类流入西北侧，也通过南部的路线迁移到内部海湾，然后经常在通过奥斯河口的嘴里进入这些河流。在内海湾，海面水的盐度建议，来自三个河流的水在逆时针方向的深处循环，深度小于1.0米，沿着南部海岸向东流动。因此，在大翼氏海湾归盐鲑鱼的观察到的迁徙路径与海湾地表河水的逆流相同。目前的结果表明，在萨里克狭窄入口中鲑鱼的归巢迁移由纳塔尔河流引导。

著录项

  • 来源
    《Zoological Science》 |2019年第6期|共9页
  • 作者

    Nobata Shigenori; Kitagawa Takashi; Tanaka Kiyoshi; Komatsu Kosei; Aoki Yoshinori; Sato Katsufumi; Takei Yoshio; Hyodo Susumu;

  • 作者单位

    Univ Tokyo Atmosphere &

    Ocean Res Inst Int Coastal Res Ctr 1-19-8 Akahama Kamihei Iwate 0281102 Japan;

    Univ Tokyo Atmosphere &

    Ocean Res Inst Int Coastal Res Ctr 1-19-8 Akahama Kamihei Iwate 0281102 Japan;

    Univ Tokyo Atmosphere &

    Ocean Res Inst Int Coastal Res Ctr 1-19-8 Akahama Kamihei Iwate 0281102 Japan;

    Univ Tokyo Atmosphere &

    Ocean Res Inst 5-1-5 Kashiwanoha Kashiwa Chiba 2778564 Japan;

    Univ Tokyo Atmosphere &

    Ocean Res Inst Int Coastal Res Ctr 1-19-8 Akahama Kamihei Iwate 0281102 Japan;

    Univ Tokyo Atmosphere &

    Ocean Res Inst 5-1-5 Kashiwanoha Kashiwa Chiba 2778564 Japan;

    Univ Tokyo Atmosphere &

    Ocean Res Inst 5-1-5 Kashiwanoha Kashiwa Chiba 2778564 Japan;

    Univ Tokyo Atmosphere &

    Ocean Res Inst 5-1-5 Kashiwanoha Kashiwa Chiba 2778564 Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 动物学;
  • 关键词

    chum salmon; homing migration; salinity; river water; multiple rivers;

    机译：鲑鱼;归巢迁移;盐度;河水;多河;

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