Swim behavior and temperature selection of homing chum salomon

归巢密友所罗门的游泳行为和温度选择

• 批准号: 08459029
• 负责人: NAITOU Yasuhiko
• 金额: $ 4.93万
• 依托单位: National Institute of Polar Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08459029/
• 关键词: chum salomn; migration; environment; swim behavior; swim velocity; ambient temperature; vertical migration; マイクロデータロガー; 行動; 遊泳水深

Aquatic animals often show migration behavior and strong homing behavior. The salmons are well known for their strong homing behavior. Chum salmon return to their natal river after spending for a few years for feeding in the North Pacific. Thus many scientists are interested min such behavior and studied on their mechanisms of homing behavior and mechanisms of osmo regulation system from point view of physiology and behavior. However nothing is known how salmon swim in the ocean. We conducted the experiments of measurement of their swim behavior and ambient temperature by attaching the micro data loggers during their homing migration to the natal river and examined how temperature environment affect their migration behavior. The results showed that fish avoid high temperature water mass of the surface layr and sank to the bottom. This was understood that fish saved their energy loss by swimming cooler water and then they detected the bottom topography for their geolocation to compensate the odor homing mechanism which only function in the surface layr.

水生动物常表现出迁徙行为和强烈的归巢行为。鲑鱼以其强烈的归巢行为而闻名。大马哈鱼在北太平洋觅食几年后回到它们纳塔尔的河流。因此，许多科学家对这种归巢行为产生了浓厚的兴趣，并从生理学和行为学的角度对归巢行为的机制和奥斯莫调节系统的机制进行了研究。然而，我们不知道鲑鱼是如何在海洋中游泳的。在它们归巢的过程中，我们通过安装微型数据记录仪，对它们的游泳行为和环境温度进行了测量，并研究了温度环境对它们迁移行为的影响。结果表明，鱼类避开表层的高温水团，沉到底层。据了解，鱼类通过在较冷的水中游泳来节省能量损失，然后它们检测底部地形以进行地理定位，以补偿仅在表层起作用的气味归巢机制。

项目成果

"Development of micro data logger and study of marine animals." Bulletin of Japanese society for comparative endocrinology. 83. 21-25 (1996)

“微型数据记录仪的开发和海洋动物的研究。”

内藤 靖彦: "マイクロデータロガーと海洋生物研究" 比較内分泌学会ニュース. 83. 21-25 (1996)

Yasuhiko Naito：“微数据记录器和海洋生物学研究”比较内分泌学会新闻 83. 21-25 (1996)。

内藤 靖彦: "海の中動物はなにしてる" 岩波出版, 44 (1997)

内藤康彦：“动物在海里做什么？”岩波出版社，44 (1997)

内藤靖彦: "海の中動物はなにしてる" 岩波出版, 1-44 (1997)

内藤康彦：“动物在海里做什么？”岩波出版社，1-44 (1997)

Naito Yasuhiko: "Development of a microdata tag for study of free ranging marine animals." Memoir of the Faculty of Fisheries,Hokkaido Unv.44・1(special edittion). 31-34 (1997)

内藤康彦：“用于研究自由放养海洋动物的微数据标签的开发”，北海道水产学院回忆录 Unv.44·1（特别版）（1997 年）。