The Community Ecology of Mobile Macrofauna (Fish and Decapod) at the Youngjong Tiny Tidepools, Incheon, Korea

영종도 소형 조수웅덩이에 서식하는 이동성 대형 동물 (어류와 십각류)의 군집생태

  • Kim, Byung-Gi (Department of Ocean Science, College of Natural Sciences, Inha University) ;
  • Kim, Byung-Pyo (Department of Ocean Science, College of Natural Sciences, Inha University) ;
  • Han, Kyung-Nam (Department of Ocean Science, College of Natural Sciences, Inha University)
  • 김병기 (인하대학교 자연과학대학 해양과학과) ;
  • 김병표 (인하대학교 자연과학대학 해양과학과) ;
  • 한경남 (인하대학교 자연과학대학 해양과학과)
  • Received : 2015.07.31
  • Accepted : 2015.09.29
  • Published : 2015.09.30

Abstract

Mobile macrofauna and community structure were studied at the Youngjong tiny tidepools, Incheon, Korea. Samples were monthly collected from February 2010 to January 2011. Mobile macrofauna community comprised a total of 18 species, including 1,122 individuals and 623.6 gWWt. The dominant species were Luciogobius guttatus, Tridentiger bifasciatus, Hemigrapsus penicillatus, Pagurus minutus. The number of species and biomass were low from December to March, and high from April to November. Canonical correspondence analysis revealed that temperature were the most important environmental variables in determining the observed variability in community composition. Species diversity indices ranged from 0.14 to 2.05, and showed the highest value in October 2010. The tide pools provide spawning ground and nursery ground for some fishes and decapods.

인천, 영종도의 소형 조수웅덩이에서 이동성 대형동물의 군집을 조사하였다. 조사는 2010년 2월부터 2011년 1월까지 매월 실시되었다. 총 18종, 1,122개체, 623.6 gWWt이 채집되었다. 우점종은 민물두줄망둑, 미끈망둑, 풀게, 긴발가락참집게였다. 종수와 생체량은 12월부터 3월까지 낮았고, 4월부터 11월까지 높게 나타났다. 정준대응분석 결과 수온이 군집 조성에서 가장 중요한 환경 요인임을 나타내었다. 종다양도지수 범위는 0.14~2.05였고, 10월에 가장 높았다. 소형 조수웅덩이는 일부 작은 크기의 어류와 십각류에게 산란장과 성육장을 제공한다.

Keywords

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