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Experimental assessment of copepod survival in response to the harmful dinoflagellate Karenia selliformis from the southeastern coast of Hokkaido, Japan
https://fra.repo.nii.ac.jp/records/2008609
https://fra.repo.nii.ac.jp/records/2008609eb2b1570-c5d9-4364-8611-43d8bf8305e8
| 名前 / ファイル | ライセンス | アクション |
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Ohnishi et al. Experimentalassessment of copepod survival.pdf (688 KB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2024-06-26 | |||||
| タイトル | ||||||
| タイトル | Experimental assessment of copepod survival in response to the harmful dinoflagellate Karenia selliformis from the southeastern coast of Hokkaido, Japan | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | copepod survival; harmful algae; ingestion rate; Karenia selliformis; marine ecosystem | |||||
| 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 |
大西, 拓也
× 大西, 拓也× 谷内, 由貴子× 渡辺, 剛× 紫加田, 知幸× 葛西, 広海 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In the autumn of 2021, a large-scale harmful algal bloom (HAB) emerged along the southeast coast of Hokkaido, Japan, and this was predominantly composed of the dinoflagellate Karenia selliformis. The emergence of K. selliformis-dominated HABs was the first observation in Japan; therefore, no previous reports exist on the impact of HABs on zooplankton in the region. This study investigated the effects of K. selliformis on the survival of copepods—a critical component of the zooplankton community. The results indicated that the survival rates of all six copepod species examined were markedly reduced, particularly at elevated K. selliformis concentrations or during extended exposure. The copepod survival rate decline occurred even in the absence of direct contact or ingestion of K. selliformis, thus implying that K. selliformis may excrete harmful substances extracellularly. Feeding experiments revealed that Neocalanus plumchrus consumes K. selliformis cells; however, the ingestion rate diminished with increased concentrations of K. selliformis cells. The results suggest that larger copepods with smaller surface-to-volume ratios may possess greater resilience to the harmful substances compared to smaller species. Further, the HAB in southeast Hokkaido likely exerted deleterious effects on lower trophic levels within the marine ecosystem by disrupting copepod survival and feeding activity. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : Plankton and Benthos Research 巻 19, 号 2, p. 88-97, ページ数 10, 発行日 2024-05-31 |
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| 出版者 | ||||||
| 出版者 | The Plankton Society of Japan | |||||
| 言語 | en | |||||
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| 出版者 | 日本プランクトン学会 | |||||
| 言語 | ja | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 1880-8247 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 1882-627X | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.3800/pbr.19.88 | |||||
| 情報源 | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | Local | |||||
| 関連識別子 | 23343078 | |||||
| 言語 | ja | |||||
| 関連名称 | 水産技術研究所 環境・応用部門 環境保全部 （五島） | |||||
| 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/pbr/19/2/19_P190202/_article/-char/en | |||||
| 言語 | en | |||||
| 関連名称 | J-STAGE | |||||
| 著者版フラグ | ||||||
| 出版タイプ | SMUR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_71e4c1898caa6e32 | |||||
