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アジメドジョウの生息地保全に関する生態学的研究
https://kindai.repo.nii.ac.jp/records/5282
https://kindai.repo.nii.ac.jp/records/528258a72cf0-76ef-4b58-b511-72b127212ece
名前 / ファイル | ライセンス | アクション |
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AN00064044-20100331-0111.pdf (6.5 MB)
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Item type | ☆紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2010-06-10 | |||||
タイトル | ||||||
タイトル | アジメドジョウの生息地保全に関する生態学的研究 | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | Ecological study of habitat conservation for the endangered freshwater loach,Niwaella delicata | |||||
著者 |
平松, 和也
× 平松, 和也 |
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言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | stream, loach, conservation, groundwater, river management | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者(英) | ||||||
en | ||||||
Hiramatsu, Kazuya | ||||||
著者 所属 | ||||||
近畿大学大学院農学研究科環境管理学専攻 | ||||||
著者所属(翻訳) | ||||||
Program in Environmental Management, Graduate School of Agriculture, Kinki University | ||||||
版 | ||||||
出版タイプ | NA | |||||
出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||
出版者 名前 | ||||||
出版者 | 近畿大学農学部 | |||||
書誌情報 |
近畿大学農学部紀要 en : Memoirs of the Faculty of Agriculture of Kinki University 号 43, p. 111-157, 発行日 2010-03-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 04538889 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The Ajime loach, Niwaella delicata, is endangered and categorized as a vulnerable species in the latest Red List of Threatened Animals in Japan (2007). In the present study, field investigations and aquarium-based experiments were conducted to reveal the suitable habitat for this fish. The outcome of field investigations indicated that major variables influencing distribution of the fish are low summer water temperatures, variable channel units, an abundance of loose stones and abundant groundwater discharge and also that, in autumn, the hiding of the fish under substrates is followed bymigration to groundwater seepages in order to overwinter. Meanwhile, aquarium-based experiments showed that the Ajimeloach prefer a large substrate about 40 cm in diameter, and multi-layered loose stones for the hiding. Furthermore, the fish proved to have positive rheotaxis and thermotaxis, indicated by sensitivity to differences in water flow of 0.5 cms^<-1> and water temperature of 1.3 ℃ ± 0.1 SD, respectively. The rheotaxis and thermotaxis of the fish probably play an important role in the finding of groundwater seepage. In the last chapter of this paper, based on the results of these investigations and experiments, I discuss the river management needed to conserve the suitable habitat for the Ajime-loach. | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf |