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Does construction in the spawning ground improve the riverbed conditions making it suitable for spawning of the Ryukyu-ayu Plecoglossus altivelis ryukyuensis?
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- Awata, Satoshi
- Osaka City University, Niigata University, National Research Institute of Fisheries Science
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- Tsuruta, Tetsuya
- National Research Institute of Fisheries Science, Osaka Sangyo University
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- Abe, Shin-ichiro
- National Research Institute of Fisheries Science, Ibaraki University
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- Yonezawa, Toshihiko
- Kagoshima Environmental Research and Service
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- Iguchi, Kei'ichiro
- National Research Institute of Fisheries Science, Nagasaki University
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Description
Maintaining a certain number of spawning grounds for endangered fish is particularly important in rivers and streams where the environment changes drastically through floods and exploitations. Ryukyu-ayu Plecoglossus altivelis ryukyuensis is an endangered annual fish inhabiting the few streams and rivers flowing through the Amami-Oshima Island, southern Japan, and spawns in the lower reaches at sites with the specific riverbed conditions. In the island, resident volunteers along with researchers modify riverbed manually to provide conditions suitable for the natural spawning of the fish every year....
Journal
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- Ichthyological Research
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Ichthyological Research 67 (4), 493-501, 2020-11
Springer
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Details 詳細情報について
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- CRID
- 1050022476722639616
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- NII Article ID
- 120007036307
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- NII Book ID
- AA11077079
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- ISSN
- 16163915
- 13418998
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- NDL BIB ID
- 030724607
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE