The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY (한국해양학회지:바다)

The Korean Society of Oceanography (한국해양학회)
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Species Composition of Fishes in Eelgrass Bed of Minyang in Tongyeong, Korea

경남 통영 민양마을 잘피밭의 어류 종조성

  • Kim, Jun-Sop (Research Institute for Coastal Environment and Fishery policy, 807 Industrial Education Cooperation B/D Chonnam National University) ;
  • Choi, Jung-Yoon (Department of Marine Biology & Aquaculture, Gyeongsang National University) ;
  • Lee, Yu-Jin (Department of Marine Biology & Aquaculture, Gyeongsang National University) ;
  • Gwak, Woo-Seok (Department of Marine Biology & Aquaculture, Gyeongsang National University)
  • 김준섭 ((주)해양수산정책기술연구소) ;
  • 최정윤 (국립경상대학교 해양생명과학과) ;
  • 이유진 (국립경상대학교 해양생명과학과) ;
  • 곽우석 (국립경상대학교 해양생명과학과)
  • Received : 2013.05.28
  • Accepted : 2013.10.29
  • Published : 2013.11.28
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Abstract

A total of 25 species, 3,880 individuals and 3,145.1 g of fishes were collected by a surf net from the eelgrass bed in Minyang. Most fishes collected in the eelgrass bed belong mainly to small fish species or juveniles. The dominant fish species were Gymnogobius heptacanthus, Rudarius ercodes, Pholis nebulosa, Chaenogobius gulosus, and Gymnogobius castaneus which accounted for 89.1% of total number of individuals collected. The number of individuals and biomass were higher from June to September when the water temperature was high. However, both the number of individuals and species showed the lowest from January and February. Highest species diversity index (H') was observed in April, 2012.

경남 통영시 민양 잘피밭에 서식하는 어류의 종조성 및 계절 변동을 조사하기 위해 2011년 5월부터 2012년 4월까지 예인망(surf net)을 이용하여 매월 어류를 채집하였다. 조사기간 동안 총 25종 3,880개체 3,145.1 g의 어류가 채집되었다. 조사기간 동안 채집된 어류는 대부분 소형어나 유어들이었고, 그 중 우점종은 1,970개체가 채집된 살망둑(Gymnogobius heptacanthus)이였으며, 그물코쥐치(Rudarius ercodes), 베도라치(Pholis nebulosa), 별망둑(Chaenogobius gulosus), 날망둑(Gymnogobius castaneus) 순으로 채집되어 총 개체수의 89.1%를 차지하였다. 잘피밭 출현 어류는 수온이 대체적으로 높은 6-9월 사이 다수의 개체가 출현하였고, 수온이 낮은 1-2월에 개체수와 종수가 적게 나타나 수온의 영향을 받고 있는 것으로 보인다. 한편, 종 다양도지수(H')는 2012년 4월이 가장 높게 나타났다.

Keywords

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