藻場造成と維持に関する研究
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- 長谷川 一幸
- 公益財団法人海洋生物環境研究所中央研究所
書誌事項
- タイトル別名
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- Study on the Seaweed Bed Base Creation and Maintenance Techniques
- 学会賞受賞講演 藻場造成と維持に関する研究
- ガッカイショウ ジュショウ コウエン モバ ゾウセイ ト イジ ニ カンスル ケンキュウ
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The authors attempted to examine the use of the Habitat Suitability Index (HSI) Model for quantitative estimation of Sargassum spp. seaweed bed in the case of low biological and physical disturbances on the coast of Kunda Cove in the western part of Wakasa Bay. A strong correlation was found between the prediction of the HSI model analysis and the field observations (r=0.72〜0.80), while model predictions for the artificial construction were low depending on the substrate configuration. Possible causes preventing seaweed beds formation are feeding damage by herbivores inhabiting in the substrate crevasses. By using a net over the artificial constructions where Sargassum spp. had not previously grown, young Sargassum patens sporophytes were able to survive. To form a submarine forest effectively in this area, it was suggested that it is necessary to prevent herbivores from using substrate crevasses as habitats. The feeding experiments verified the feeding activity of a decapod crustacean Heptacarpus futilirostris on young Sargassum patens sporophytes. Although the grazing amount of each crustacean species would be slight, young Sargassum spp. survival might be affected by the grazing of crustaceans including H. futilirostris especially in the area where the seaweed beds have deteriorated and seaweed bed formation has not been successful.
収録刊行物
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- 日本水産工学会誌
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日本水産工学会誌 49 (2), 69-76, 2012
日本水産工学会
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詳細情報 詳細情報について
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- CRID
- 1390282680839142400
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- NII論文ID
- 110009586176
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- NII書誌ID
- AN10278554
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- ISSN
- 21897131
- 09167617
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- NDL書誌ID
- 024206172
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
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