書誌事項
- タイトル別名
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- Occurrence patterns of fishes collected by net cages placed at surface and bottom layers along a seawall at the Furuhama Park in innermost Tokyo Bay
- トウキョウワン オウブ ノ チョクリツ ゴガン(オオモリ フルサト ノ ハマベ コウエン)ニ セッチ シタ カゴモウ ニ イシュウ スル ギョルイ ノ シュツゲン ヨウシキ
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説明
Occurrence patterns of fishes were compared between net cages(0.5 × 0.4 × 0.4 m) with three internal materials(nylon net, bamboo shoot and oyster shell)placed at surface and bottom layers along a seawall at the Furuhama Park in innermost Tokyo Bay from April 2016 to March 2019. A total of 1,574 individuals of 17 species representing 9 families were collected, fishes collected at the surface numbering 1,189 individuals of 13 species(13.2 ind./cage)and those at the bottom 385 individuals of 11 species(4.2 ind./cage).The dissolved oxygen was 6.2 ± 2.26(mean ± SD)mg/L and 4.2 ± 2.58 mg/L at the surface and bottom layers, respectively, and the respective times when the hypoxic oxygen water of 3.0 mg/L and lower appeared were 4 out of 88 cages and 33 of 89 cages at the surface and bottom layers. Three gobiids, Tridentiger obscurus, Chaenogobius gulosus and Tridentiger trigonocephalus, were dominant species occupying ca. 90% of the total individuals collected in this study; however, the first and third were collected by both the surface and bottom cages, but the second species occurred at the surface layer only. This study suggested a possibility that a certain structure created at the surface layer of a seawall would become a habitat for some fishes during the time when hypoxic waters arises.
収録刊行物
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- La mer
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La mer 58 (3-4), 59-69, 2020
日仏海洋学会
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詳細情報 詳細情報について
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- CRID
- 1390288070895964160
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- NII論文ID
- 130008039304
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- NII書誌ID
- AN00019968
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- ISSN
- 24342882
- 05031540
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- NDL書誌ID
- 031239464
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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
- NDLサーチ
- CiNii Articles
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- 使用不可