ENHANCING THE FUNCTION OF A COLD REGION FISHING PORT AS A FEEDING GROUND FOR AQUATIC ORGANISMS
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- KAJIHARA Rumiko
- (国研)土木研究所寒地土木研究所
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- OHASHI Masami
- 東海大学生物学部
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- MATONO Hiroyuki
- (国研)土木研究所寒地土木研究所
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- MONTANI Shigeru
- 北海道大学
Bibliographic Information
- Other Title
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- 寒冷海域漁港おける水産生物の餌場機能強化技術の検討
Abstract
<p> This study was conducted to gather basic information on ways to increase surface area of organism-adhering substrates per unit volume, focused on benthic primary producers, in order to enhance the function of a cold region fishing port as a feeding ground for marine organisms. Test specimens (organism-adhering substrates) were placed under various conditions (e.g., in gaps, in different positions, using different materials) in a port to study the adhering organisms, zooplankton and fish. The results were similar under all conditions, with microalgae and adhering animals found on the surface of specimens. The amount of zooplankton found around specimens exceeded that in the water column. Annelids and arthropods, which are thought to be food for fish, were dominant in the taxa of adhering animals and zooplankton. These results suggest that, by adding adhering substrates and increasing their surface area, primary producers per unit volume of the water column will increase, enhancing the feeding ground function of the benthic ecosystem.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 78 (2), I_691-I_696, 2022
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390012313366632832
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- ISSN
- 21854688
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed