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Interannual variations in diet of Japanese jack mackerel (Trachurus japonicus) juveniles in the southwestern Sea of Japan in relation to recent growth rate
https://fra.repo.nii.ac.jp/records/94
https://fra.repo.nii.ac.jp/records/94ec1c6f79-53cd-42b6-ad39-918486a7c2bf
| 名前 / ファイル | ライセンス | アクション |
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10055810_post-print (3.4 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||
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| 公開日 | 2022-10-03 | |||||||||||||||||
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| タイトル | Interannual variations in diet of Japanese jack mackerel (Trachurus japonicus) juveniles in the southwestern Sea of Japan in relation to recent growth rate | |||||||||||||||||
| 言語 | en | |||||||||||||||||
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| 言語 | eng | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | Calanus sinicus; diet composition; habitat temperature; instantaneous growth rate; Paracalanusparvuss.l.; prey selection; Trachurus japonicusjuvenile | |||||||||||||||||
| 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 |
佐々, 千由紀
× 佐々, 千由紀× 北島, 聡
WEKO
371
× 髙橋, 素光
WEKO
774
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| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | We examined interannual variations in the diet of Trachurus japonicus juveniles in relation to prey density and recent 5-day instantaneous growth rate (IGR) in the southwestern part of the Sea of Japan (SJ) in late spring during 2011–2013. Habitat temperature of juveniles in 2011 was lower than the other 2 years. In all 3 years, more than 97% of juveniles had food in the stomach. Small juveniles <35-mm standard length (SL) fed mainly on adult female Paracalanus parvus s.l., the most dominant calanoid copepod in the water column, without a significant interannual difference. In 2011 and 2012, large juveniles ≥35-mm SL predated heavily upon adult female Calanus sinicus which form a high-energy food for the juveniles. In contrast, in 2013, the large juveniles preyed on a large number of a variety of small-sized prey items, such as P. parvus s.l., euchaetid copepods, and ostracods. In 2011 when the feeding condition was considered to be favorable, but the habitat temperature was lowest, the IGR of large juveniles was markedly lower than in the other 2 years. Meanwhile, there was no significant difference in the IGR between 2012 and 2013 when the diet composition was markedly different, but habitat temperature was comparable. The present observations indicate that the between-year difference in juvenile IGR was not explained well by variations in the diet composition. Instead, habitat temperature was concluded to be the more dominant factor causing the observed between-year differences in the IGR in the southwestern SJ. | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 書誌情報 |
en : Fisheries Oceanography 巻 30, 号 6, p. 772-786, ページ数 15, 発行日 2021-08-02 |
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| 出版者 | ||||||||||||||||||
| 出版者 | Wiley | |||||||||||||||||
| 言語 | en | |||||||||||||||||
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| 出版者 | The Japanese Society of Fisheries Oceanography | |||||||||||||||||
| 言語 | en | |||||||||||||||||
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| 出版者 | 水産海洋学会 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| ISSN | ||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||
| 収録物識別子 | 1054-6006 | |||||||||||||||||
| DOI | ||||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||
| 関連識別子 | 10.1111/fog.12558 | |||||||||||||||||
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| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | Local | |||||||||||||||||
| 関連識別子 | 10055810 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 関連名称 | Fraism | |||||||||||||||||
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| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||||
| 関連識別子 | https://onlinelibrary.wiley.com/doi/10.1111/fog.12558 | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 関連名称 | Fisheries Oceanography | |||||||||||||||||
| 著者版フラグ | ||||||||||||||||||
| 出版タイプ | AM | |||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||
