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タイトル: | Changes in Fishery Resources in Relation to Water Environments in Osaka Bay |
著者: | Nakajima, Masaki Tarutani, Kenji Yamochi, Susumu |
キーワード: | eutrophication oligotrophication phosphorus load fishery resources |
発行日: | Mar-2016 |
出版者: | Kyoto University Design School |
誌名: | PROCEEDINGS of the Design Symposium on Conservation of Ecosystem Volume 4 (The 15th SEASTAR2000 workshop) |
巻: | 4 |
開始ページ: | 1 |
終了ページ: | 4 |
抄録: | An attempt was made to analyze the relationship between the change in the quantity of fishery resources and the change of phosphorus load deposited into Osaka Bay. The phosphorus load had steadily increased from 1955 to 1975, then decreased slowly towards the 2000s. The major benthic fishery organisms, such as octopus, shrimp and crab, mantis shrimp, tongue-fish and right-eye flounder, were employed to examine the characteristics of change in fishery resources in relation to water environments of Osaka Bay. Excluding shrimp and crab, catch amounts showed a largely equivalent response to phosphorus load in the bay. The results presented here demonstrate that a close relationship exists between phosphorus emissions and benthic fishery resources in Osaka Bay. |
記述: | March 15, 2015 |
DOI: | 10.14989/203161 |
URI: | http://hdl.handle.net/2433/203161 |
出現コレクション: | PROCEEDINGS of the Design Symposium on Conservation of Ecosystem Volume 4 (The 15th SEASTAR2000 workshop) |
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