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Seaweed seedling culture technique using LEDs and feeding behavior of herbivorous fish to suppress fouling by other seaweeds - in the case of “hiziki” Sargassum fusiforme culture -
https://doi.org/10.57348/0002016040
https://doi.org/10.57348/0002016040f2880bd8-8571-4bb3-8e20-3787966e3b3f
| 名前 / ファイル | ライセンス | アクション |
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fra_k_53_127.pdf (443.7 KB)
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| アイテムタイプ | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||||||||||||
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| 公開日 | 2026-04-02 | |||||||||||||||||||||||
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| タイトル | Seaweed seedling culture technique using LEDs and feeding behavior of herbivorous fish to suppress fouling by other seaweeds - in the case of “hiziki” Sargassum fusiforme culture - | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||||||
| キーワード | ||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||||
| 主題 | Sargassum fusiforme; LEDs; Girella punctata; Girella leonina; seaweed seedling production | |||||||||||||||||||||||
| 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 | departmental bulletin paper | |||||||||||||||||||||||
| ID登録 | ||||||||||||||||||||||||
| ID登録 | 10.57348/0002016040 | |||||||||||||||||||||||
| ID登録タイプ | JaLC | |||||||||||||||||||||||
| 著者 |
野田, 勉
× 野田, 勉
WEKO
859
× 門田, 立
WEKO
394
× 藤浪, 祐一郎
WEKO
827
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| 内容記述タイプ | Abstract | |||||||||||||||||||||||
| 内容記述 | A brown seaweed Sargassum fusiforme, called “hiziki” in Japanese, is an important fishery resource in Japan. During the artificial seedling production of hiziki, fouling by other seaweeds (e. g. Ulva spp.) has become a great problem. In this study, we developed an efficient hiziki seedling culture technique using LEDs and the feeding behavior of herbivorous fishes: Girella punctata and G. leonina. Hiziki germlings (approximately 0.15 mm length) were cultured for 30 days under the LED light of four colors: green, blue, red, and white. At the end of the experiment, the respective mean length of the germlings in the green, blue, red, and white LEDs treatments were 1.95 mm, 1.44 mm, 0.25 mm, and 1.46 mm. The respective mean coverage of fouling by other seaweeds were 29.1 %, 96.8 %, 29.1 %, and 87.2 %. These findings indicate the green LED light is adequate for higher growth of hiziki and for growth suppression of fouling seaweeds. Furthermore, another experiment was conducted using herbivorous fish to remove other seaweeds. We placed hiziki germlings and other seaweeds propagating on a concrete block with 10 juveniles of G. punctata or G. leonina in a 100 L tank. After 4.5 h, the coverage of fouling by other seaweeds decreased from 23.5 % to 0.5 % in the G. punctata tank, and from 15.5 % to 0.6 % in the G. leonina tank. The lengths of hiziki on the block, those detached from the block, and those in the stomach contents of the fish were, respectively, 2.04 mm, 1.47 mm, and 0.86 mm in the G. punctata tank, and 2.37 mm, 1.54 mm and 1.25 mm in the G. leonina tank. These results demonstrate that larger hiziki seedlings are less susceptible to the browsing by G. punctata and G. leonina. Consequently, juvenile G. punctata and G. leonina were found to be effective for removing fouling seaweeds during the hiziki seedling production. | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 書誌情報 |
ja : 水産研究・教育機構研究報告 en : Bulletin of Japan Fisheries Research and Education Agency 巻 53, p. 127-132, ページ数 6, 発行日 2026-03-25 |
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| 出版者 | 水産研究・教育機構 | |||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||
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| 出版者 | Japan Fisheries Research and Education Agency | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| ISSN | ||||||||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||||||||
| 収録物識別子 | 2758-3953 | |||||||||||||||||||||||
| 書誌レコードID | ||||||||||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||||||||||
| 収録物識別子 | AA12767505 | |||||||||||||||||||||||
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| 識別子タイプ | Local | |||||||||||||||||||||||
| 関連識別子 | fra_k_53_127 | |||||||||||||||||||||||
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| 出版タイプ | VoR | |||||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||||
