Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Distribution of Fish Larvae in the Southern Coastal Waters (Yeosu, Namhae and Tongyoung) of Korea in Spring and Summer

한국 남해안(여수, 남해, 통영) 연안해역 춘·하계 어류 자치어 분포 특성

  • Choi, Hee Chan (Oceanic Climate and Ecology Research Division, National Institute of Fisheries Science) ;
  • Yoo, Man Ho (Oceanic Climate and Ecology Research Division, National Institute of Fisheries Science) ;
  • Youn, Seok Hyun (Oceanic Climate and Ecology Research Division, National Institute of Fisheries Science) ;
  • Oh, Hyun Ju (Oceanic Climate and Ecology Research Division, National Institute of Fisheries Science)
  • 최희찬 (국립수산과학원 기후변화연구과) ;
  • 유만호 (국립수산과학원 기후변화연구과) ;
  • 윤석현 (국립수산과학원 기후변화연구과) ;
  • 오현주 (국립수산과학원 기후변화연구과)
  • Received : 2017.10.13
  • Accepted : 2017.10.28
  • Published : 2017.10.31
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Abstract

In order to identify the species composition and distribution pattern of larval fish assemblages in the southern coastal waters of Korea, monthly samples were taken using an RN80 net which was towed horizontally in three different regions (Yeosu, Namhae and Tongyoung) between May to September 2016. A total of fifty taxa were collected during the study. Among these, Engraulis japonicus, which accounted for 56.8 % of the total population, was the most dominant species, followed by Sillago japonicus, Parablennius yatabei, Gobiidae Type A, Parablennidae sp., and Omobranchus elegans as dominant taxa, that accounted for 87.5% of the total number of individuals. ANOSIM results revealed that regional groups were not separated, but seasonal groups were clearly divided with statistical significance, and these differences were caused mainly by water temperature variations identified by canonical analysis.

한국 남해 연안에 출현하는 춘 하계 어류 자치어 군집의 조성과 분포 특성을 파악하기 위하여 2016년 5월부터 9월까지 남해의 세 해역(여수, 남해, 통영)에서 RN80 네트를 이용해 매월 1회 채집하였다. 조사기간 동안 총 50개 분류군의 자치어가 채집되었고, 이 중 멸치가 전체 출현 개체수의 56.8 %로 가장 우점하였으며, 청보리멸, 청베도라치, 망둑어과 타입A, 청베도라치과, 앞동갈베도라치 등이 각각 2 % 이상의 개체수비를 보여 우점하였으며, 이상 6개 분류군이 전체 출현 자치어의 87.5 %를 차지하였다. ANOSIM 결과 해역 간에 자치어 조성의 유의한 차이는 없었으나, 시기적으로는 유의한 차이를 보였다. 정준대응분석 결과 이러한 자치어 군집의 시기적 변동은 주로 수온 변화에 의한 것으로 나타났다.

Keywords

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