シシャモの産卵行動および産着卵の生残に及ぼす河川流速の影響
書誌事項
- タイトル別名
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- Influence of Water Velocity on Spawning Behavior and Egg Survival of Shishamo Smelt
- シシャモ ノ サンラン コウドウ オヨビ サンチャクラン ノ セイザン ニ オヨボス カセン リュウソク ノ エイキョウ
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説明
Our previous work has shown the density of spawned eggs of shishamo smelt, Spirinchus lanceolatus, to be influenced by the water velocity of the river. The purpose of the present study is to investigate the influence of water velocity on spawning behavior and egg survival of shishamo smelt in a water tank. Three different experiments were carried out on the influence of water velocity on the mating behavior, the influence of water velocity on the exfoliation of eggs, and the influence of a mud covering on the survival of eggs. When the water velocity exceeded 0.6 m/sec, the adult smelt were not able to display spawning behavior, and any eggs became easy to exfoliate. Egg survival rate decreased with covering depth of mud over 4 mm. These data may be useful for the conservation and restoration of spawning habitats of Shishamo smelt in their native rivers.
収録刊行物
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- 水産増殖
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水産増殖 54 (4), 437-447, 2006
日本水産増殖学会
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詳細情報 詳細情報について
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- CRID
- 1390001204718242944
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- NII論文ID
- 10018710459
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- NII書誌ID
- AN00124667
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- ISSN
- 21850194
- 03714217
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- NDL書誌ID
- 8653298
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
- Crossref
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- 抄録ライセンスフラグ
- 使用不可