WEKO3
アイテム
干潟におけるクルマエビ天然ポストラーバの魚類からの被食状況
https://fra.repo.nii.ac.jp/records/2002131
https://fra.repo.nii.ac.jp/records/200213147c22192-b9fc-4a3d-bdac-ed9d3486c19f
| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-04-11 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | 干潟におけるクルマエビ天然ポストラーバの魚類からの被食状況 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 言語 | ||||||||||||||||||
| 言語 | jpn | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | artificial seeds; daytime; individual density; gobies; gut contents; rake sledge net | |||||||||||||||||
| 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 | journal article | |||||||||||||||||
| 著者 |
阪地, 英男
× 阪地, 英男× 真鍋, 明弘
WEKO
1022
× 澤山, 周平× 西本, 篤史
WEKO
915
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| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | Catch of kuruma prawn Penaeus japonicus in Japan has declined since the mid-1990s. It has been reported that artificial seeds released for stock enhancement are heavily predated by fish in tidal flats, but this has not been reported for natural postlarvae. Therefore, to clarify the predation pressure on natural postlarvae, the postlarvae and surrounding fish were simultaneously collected using a rake sledge net on tidal flats at three sites along the Pacific coast of central Japan during the daytime from July to December 2021. The highest density of natural postlarvae in this study(5.7 individuals/m2)was less than that recorded immediately after the release of artificial seeds, but comparable to that recorded before the mid-1990s when the catch was higher. A total of 888 individuals of 21 fish species were collected with the prawn, with a high abundance of the goby Favonigobius gymnauchen. This goby has been reported as a predator on artificial seeds and occurred during the periods when natural postlarvae were abundant. However, few postlarvae were observed in the stomach contents of these fish, except for a small specimen of crescent sweetlips Plectorhinchus cinctus. These results suggest that natural postlarvae are less vulnerable to predators than artificial seeds potentially due to behavioral difference in addition to the lower density. It is probable that the sinking behavior in the sand during daytime in abundant artificial seeds attracts predators, although natural postlarvae do not perform such behavior because of the lower developmental stage. | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 書誌情報 |
ja : 日本ベントス学会誌 巻 78, 号 1, p. 28-36, ページ数 9, 発行日 2023-12-25 |
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| 出版者 | ||||||||||||||||||
| 出版者 | 日本ベントス学会 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 出版者 | ||||||||||||||||||
| 出版者 | Japanese Association of Benthology | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| ISSN | ||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||
| 収録物識別子 | 1345-112X | |||||||||||||||||
| DOI | ||||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||
| 関連識別子 | 10.5179/benthos.78.28 | |||||||||||||||||
| 情報源 | ||||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | Local | |||||||||||||||||
| 関連識別子 | 23342028 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 関連名称 | 水産技術研究所 環境・応用部門 沿岸生態システム部 （横浜） | |||||||||||||||||
| 関連サイト | ||||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||||
| 関連識別子 | https://www.jstage.jst.go.jp/article/benthos/78/1/78_28/_article/-char/ja | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 関連名称 | J-STAGE | |||||||||||||||||
| 著者版フラグ | ||||||||||||||||||
| 出版タイプ | NA | |||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||||||||||||||
