八代海球磨川河口干潟における底生動物相の時空間変化：ホトトギスガイのマット形成が群集構造に与える影響

DOI

書誌事項

タイトル別名
  • Effect of mat-forming by the Asian mussel <i>Arcuatula senhousia</i> on spatiotemporal variation of benthic macrofaunal community structure at Kumagawa estuary tidal flat in Yatsushiro Bay, Kyushu, Japan

抄録

Asian mussel, Arcuatula senhousia , which forms dense mats of individuals on the bottom at shallow coastal area in an inner part of bay, affects on benthic community structure under the mussel mats. However, it has not been understood well how the pattern of benthic community structure changes under mussel mats. We evaluated the effect of mussel mat-forming on pattern of changing benthic community structure, based on quantitative monitoring in spring and autumn 2016 at 28 sites in Kumagawa estuary tidal flat, Kyushu, Japan. Mussel mats became large scale from spring to autumn. Benthic community structure changed significantly among occurrence scales of Asian mussel, i.e., among scale of mat-forming. Dissimilarity of benthic community structure between non-mat sites and large mat sites ( >100 inds. 0.05 m-2) was 84.7%. Many species disappeared (i.e., local extinct) from spring to autumn, and species with higher tolerance against the reducing environment occurred in autumn. These results suggest that pattern of species turnover may occur in benthic community structure under large scale mussel mat-forming.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390581148795320320
  • DOI
    10.60290/laguna.25.0_93
  • ISSN
    21852995
    13403834
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用可

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