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Seasonal variation in feeding activity and fatness of cultured oysters in the Merbok Estuary, Malaysia
https://jircas.repo.nii.ac.jp/records/2001059
https://jircas.repo.nii.ac.jp/records/2001059e40f023d-fdc3-4684-9f58-6a3b5c479d6a
| Item type | 国際農研デフォルトアイテムタイプ（フル）(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2025-12-10 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Seasonal variation in feeding activity and fatness of cultured oysters in the Merbok Estuary, Malaysia | |||||||||||
| 言語 | en | |||||||||||
| 作成者 |
Yurimoto, Tatsuya
× Yurimoto, Tatsuya
ORCID
0000-0002-7275-064X
× Kassim, Faizul Mohd
ORCID
0009-0006-8687-0307
× Rahim, Masazurah Abdul
ORCID
0009-0001-7189-7797
|
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| 権利情報 | ||||||||||||
| 権利情報 | © 2025 The Authors. Published by Elsevier B.V. on behalf of the National Institute of Oceanography and Fisheries. | |||||||||||
| 権利情報 | ||||||||||||
| 権利情報Resource | https://creativecommons.org/licenses/by/4.0/deed.en | |||||||||||
| 権利情報 | This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | |||||||||||
| 権利情報 | ||||||||||||
| 権利情報 | https://creativecommons.org/licenses/by/4.0/ | |||||||||||
| 主題 | ||||||||||||
| 主題 | Oyster farming, Fatness index, Feeding activity, Merbok Estuary | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | To identify the optimal harvesting season for oysters cultivated in the Merbok Estuary, located in the northern region of the west coast of the Malay Peninsula, we examined the size and body condition of oysters collected monthly from January to December 2024. The fatness index, calculated as an indicator of oyster condition, increased from January to May and then declined from June to December. Similarly, the concentration of plant pigments in the midgut gland tissue, used as a proxy for feeding activity, exceeded 200 μg/g from January to May, but fell below this threshold in August. These findings suggest that the higher fatness index observed in the first half of the year is attributable to increased feeding activity during that period. Additionally, chlorophyll-a concentrations in the farming waters frequently reached red tide levels from January to May, whereas the dissolved oxygen levels remained favourable. Principal component analysis further supported the conclusion that oysters in the Merbok Estuary exhibited enhanced feeding activity and body condition from January to May. Based on these results, January to May is the optimal season for oyster harvesting in this region. | |||||||||||
| 言語 | en | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | Elsevier | |||||||||||
| 日付 | ||||||||||||
| 日付 | 2025-11-11 | |||||||||||
| 日付タイプ | Accepted | |||||||||||
| 言語 | ||||||||||||
| 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 | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | NA | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||||||||
| 関連情報 | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | https://doi.org/10.1016/j.ejar.2025.11.001 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||
| 収録物識別子 | 16874285 | |||||||||||
| 書誌情報 |
en : Egyptian Journal of Aquatic Research 発行日 2025-11-22 |
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| 助成情報 | ||||||||||||
| 識別子タイプ | Crossref Funder | |||||||||||
| 助成機関識別子タイプURI | https://doi.org/10.13039/501100009472 | |||||||||||
| 助成機関名 | Japan International Research Center for Agricultural Sciences (JIRCAS)(en) | |||||||||||
| 研究課題番号URI | https://www.jircas.go.jp/en/program/prob/b4 | |||||||||||
| 研究課題番号 | 05a1B4 | |||||||||||
| 研究課題名 | Development and dissemination of sustainable aquaculture technologies in the tropical area based on the eco-system approach(en) | |||||||||||
