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Bathymetric segregation among demersal benthos and its contributions to the differences in the bycatches on bottom fisheries in the Emperor Seamounts area, Northwestern Pacific Ocean
https://fra.repo.nii.ac.jp/records/2000204
https://fra.repo.nii.ac.jp/records/20002041c3b6d1b-4ef1-4c23-a491-8ba2a36b7445
| 名前 / ファイル | ライセンス | アクション |
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Osawa et al. Bathymetric segregation among demersal benthos.pdf (3.3 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||
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| 公開日 | 2024-02-21 | |||||||||||||||||
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| タイトル | Bathymetric segregation among demersal benthos and its contributions to the differences in the bycatches on bottom fisheries in the Emperor Seamounts area, Northwestern Pacific Ocean | |||||||||||||||||
| 言語 | en | |||||||||||||||||
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| 言語 | eng | |||||||||||||||||
| 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 |
大澤, 祐美子
× 大澤, 祐美子× 奥田, 武弘
WEKO
348
× 宮本, 麻衣
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| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | The need for the management of commercially targeted species and surrounding ecosystems has become more apparent in conjunction with the thriving commercial exploration of open seas. Despite the growing global interest in how fishing activity impacts seamount ecosystems, data regarding to the fishing impacts of gillnets on seamount ecosystems are scarce, and quantitative comparisons between trawls and gillnets are surprisingly limited. Our quantitative comparative studies using observer data collected at the southern Emperor Seamounts area revealed that the quantity and quality of bycatches of four key demersal benthos, denoted as Vulnerable marine ecosystem (VME) indicator taxa designated in the convention text of The North Pacific Fisheries Commission (three orders of dominant corals, Antipatharia, Scleractinia, and “Gorgonian” (Alcyonacea with solid axis), and Porifera), were not inherently different between the gear types, and operational tactics, such as depth or positions, might be prior factors largely affecting bycatches of benthic assemblages in the fishing activities carried out at Emperor Seamounts. Additionally, assessments of multiyear operational data revealed temporal shifts in the species composition of cold-water coral bycatches. Overall, the synthesis of bycatch occasions provided by scientific observers enabled us to reveal (1) the variations in bathymetric distributions and the contribution of local topographies toward demersal benthic organisms and (2) fishing operational features, such as operation positions and depth, which may strongly affect bycatches. | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 書誌情報 |
en : Regional Studies in Marine Science 巻 68, p. 103261, 発行日 2023-12-30 |
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| 出版者 | Elsevier | |||||||||||||||||
| 言語 | en | |||||||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||||||
| 収録物識別子 | 2352-4855 | |||||||||||||||||
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| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||
| 関連識別子 | 10.1016/j.rsma.2023.103261 | |||||||||||||||||
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| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | Local | |||||||||||||||||
| 関連識別子 | 23234010 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 関連名称 | 水産資源研究所 水産資源研究センター 広域性資源部 | |||||||||||||||||
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| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||||
| 関連識別子 | https://www.sciencedirect.com/science/article/abs/pii/S2352485523004516 | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 関連名称 | Elsevier : Regional Studies in Marine Science | |||||||||||||||||
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| 出版タイプ | AO | |||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_b1a7d7d4d402bcce | |||||||||||||||||
