EFFECTS OF DEEP MOAT RESTORATION PROJECT ON ENVIRONMENTAL DNA MONITORING IN HAKATA BAY

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  • 博多湾窪地修復事業モニタリング調査への環境DNA導入による生態系調査法の検討

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<p> In Hakata Bay, seabed excavation was carried out to secure sediment during coastal development. In Hakata Bay, the seabed was excavated to secure sediment during coastal development, leaving pits that became a source of anoxic water masses. In order to monitor the recovery of the benthic fauna, benthic organisms have been collected in addition to water quality observation. However, it has been difficult to evaluate the recovery of the ecosystem including the water masses directly above. The environmental DNA metabarcoding survey provided information on the fish fauna, including small fishes and swimmers, and the number of species was larger than the conventional method. Species-specific habitat information provided more detailed information on the distribution of the seafloor and water masses in the estuary and the continuity with the area around the restoration site.</p>

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