"The compact, freshwater migrations" for the general mechanisms of the fish migrations

“紧凑的淡水洄游”了解鱼类洄游的一般机制

• 批准号: 19570057
• 负责人: SAKAMOTO Tatsuya
• 金额: $ 2.91万
• 依托单位: Okayama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2008
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19570057/
• 关键词: 回遊; 環境; ホルモン; 適応; 保全; 行動; 国際研究者交流; アメリカ合衆国:デンマーク; アメリカ合衆国; 国際情報交換

We have observed that kissing loach and some other freshwater fishes migrate from the main stream of rivers to spawn in flood areas. These flood areas are unstable and ephemeral, however, they contain few aquatic predators and a large amount of food suitable for the development of embryos/juveniles. The present study provides the first evidence that the spawning migration of kissing loach is stimulated by rainfall and the subsequent rise in water level, as well as the new moon. Since similar observations have been reported for downstream migrations of salmonids, these stimuli may serve as general cues for migrations of fishes in rivers. Furthermore, the spawning of kissing loach is rigidly limited spacio-temporally after the formation of flood areas. Recently we have successfully demonstrated that changes in water quality directly induce migration and spawning behavior, suggesting some particular odoriferous substances may be the environmental proximate factors.

我们观察到接吻泥鳅和其他一些淡水鱼从主要河流迁移到洪水地区产卵。这些洪水区是不稳定和短暂的，但是，它们包含很少的水生捕食者和大量的食物适合胚胎/青少年的发展。本研究提供了第一个证据，接吻泥鳅的产卵迁移是由降雨和随后的水位上升，以及新月刺激。由于类似的观察报告下游洄游的鲑鱼，这些刺激可能作为一般线索的鱼类在河流中的迁移。洪水区形成后，吻吻鳅的产卵在时空上受到严格限制。近年来，我们成功地证明了水质的变化直接诱导洄游和产卵行为，这表明某些特定的气味物质可能是环境的近因。

项目成果

A new approach for classical osmoregulatory hormones in fishies

鱼类经典渗透调节激素的新方法

• 发表时间: 2007
• 作者: Sakamoto;T.
• 通讯作者: T.

Concentration of iodine-131 in brown algae collected in Japanese coastalareas

日本沿海地区采集的褐藻中碘131的浓度

• 发表时间: 2009
• 期刊: KEK Proceedings
• 作者: 兵藤 晋;ゾウギンザメ;Abe T;兵藤晋;Morita T
• 通讯作者: Morita T

The spawning migration of kissing loach between rivers and flood areas : possible general trigger for fish migrations in rivers

接吻泥鳅在河流和洪泛区之间的产卵洄游：河流中鱼类洄游的可能一般触发因素

• 发表时间: 2008
• 作者: Takahashi;H.;兵藤晋;Abe T
• 通讯作者: Abe T

Spawning behavior of kissing loach (Leptobotia curta) in temporary waters.

接吻泥鳅 (Leptobotia curta) 在临时水域中的产卵行为。

• 发表时间: 2007
• 期刊: Zool. Sci 24
• 作者: Abe T.;Kobayashi I.;Kon M.;Sakamoto T
• 通讯作者: Sakamoto T

「成長ホルモン/プロラクチン/ソマトラクチン」新・ホルモンハンドブック

《生长激素/催乳素/索马里乳糖素》新激素手册

• 发表时间: 2007
• 作者: Sakamoto;T.;兵藤 晋;坂本竜哉
• 通讯作者: 坂本竜哉