Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Species Composition of Fish Assemblage in Eelgrass Bed of Bongam on Hansando Island, Korea

경남 한산도 봉암 잘피밭 어류의 월별 종조성 변화

  • Han, Dong-Hun (The Marine Bio-Education & Research Center, The Institute of Marine Industry, Gyeongsang National University) ;
  • Lee, Dae-Hee (The Marine Bio-Education & Research Center, The Institute of Marine Industry, Gyeongsang National University) ;
  • Park, Jun-Su (The Marine Bio-Education & Research Center, The Institute of Marine Industry, Gyeongsang National University) ;
  • Kim, Jun-Sop (Ocean & Fisheries Science Institute) ;
  • Lee, Yong-Deuk (The Marine Bio-Education & Research Center, The Institute of Marine Industry, Gyeongsang National University) ;
  • Park, Jong-Yul (The Marine Bio-Education & Research Center, The Institute of Marine Industry, Gyeongsang National University) ;
  • Gwak, Woo-Seok (The Marine Bio-Education & Research Center, The Institute of Marine Industry, Gyeongsang National University)
  • 한동훈 (국립경상대학교 해양산업연구소 해양생물교육연구센터) ;
  • 이대희 (국립경상대학교 해양산업연구소 해양생물교육연구센터) ;
  • 박준수 (국립경상대학교 해양산업연구소 해양생물교육연구센터) ;
  • 김준섭 (전라남도 해양수산과학원) ;
  • 이용득 (국립경상대학교 해양산업연구소 해양생물교육연구센터) ;
  • 박종율 (국립경상대학교 해양산업연구소 해양생물교육연구센터) ;
  • 곽우석 (국립경상대학교 해양산업연구소 해양생물교육연구센터)
  • Received : 2017.05.31
  • Accepted : 2017.06.14
  • Published : 2017.06.30
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Abstract

Fish species composition in eelgrass bed of Bongam on Hansando island, Korea was determined using monthly samples collected by a surf net from August 2009 to July 2010. A total of 30 species, 3,237 individuals and 6,850.1g of fish were collected. The dominant species were Gymnogobius heptacanthus, Rudarius ercodes, Takifugu niphobles, Chaenogobius annularis, Pterogobius elapoides and Syngnathus schlegeli which accounted for 86.7% of total number of individuals of fish collected. Eelgrass started growing from May ($DW61.9g/m^2$) showing a peak biomass in August ($DW81.6g/m^2$), and low values in November ($DW57.23g/m^2$) to February ($DW15.41g/m^2$). The fish assemblages in the eelgrass beds showed clear seasonal changes; the number of fish species and individuals were low from September to December 2009, and high from December 2009 to July 2010. Seasonal variation in species composition and abundance was related to the water temperature and standing crops of eelgrass.

경남 통영시 한산면 추봉리 봉암에 위치한 잘피밭의 어류의 월별 종조성과 양적 변동을 분석하였다. 자료는 2009년 8월부터 2010년 7월까지 매월 예인망을 이용하여 수집하였다. 총 30종, 3,237개체, 6,850.1 g의 어류가 채집되었다. 우점한 종들은 살망둑, 그물코쥐치, 복섬, 점망둑, 일곱동갈망둑, 실고기로 전체 개체수의 86.7%를 나타내었다. 잘피의 평균 엽장은 8월에 $772.7{\pm}136.0mm$, 건중량 81.6 g, 11월 평균 엽장은 $698.1{\pm}146.4mm$, 건중량 57.2 g, 2월 평균 엽장은 $499.2{\pm}96.4mm$, 건중량 15.41 g, 5월의 평균 엽장은 $642.5{\pm}208.3mm$, 건중량 61.90 g이었다. 봉암 잘피밭 어류 군집은 9월부터 12월까지 종수와 개체수가 감소하다가 그 이후부터 증가하였다. 이러한 결과는 계절변화에 따른 수온 변화가 잘피밭의 어류 종조성에 주요한 영향을 주었기 때문인 것으로 생각된다.

Keywords

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