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제주도 남부 가파도 연안 어류군집의 계절별 특성 KCI 등재

A seasonal characteristic of fish assemblage in the coastal waters Gapa-do, southern part of Jeju Island

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수산해양기술연구 (Journal of the Korean Society of Fisheries and Ocean Technology)
한국수산해양기술학회(구 한국어업기술학회) (The Korean Society of Fisheriers and Ocean Technology)
초록

A seasonal characteristic of fish assemblages in the coastal waters of Gapa-do was determined using samples collected by a trammel net from 2015 to 2019. Annual mean temperature and salinity were 18.9℃, 33.6 psu (2015), 19.5℃, 33.6 psu (2016), 18.9℃, 33.8 psu (2017), 18.8℃, 34.5 psu (2018) and 19.5℃, 33.7 psu (2019), which show a stable water mass. During the survey period, a total of 50 species (30 families and 8 orders) of fishes were identified, including Scorpaeniformes (3 families and 9 species) and Perciformes (18 families and 29 species) that accounted for 68% of the total number. The number of species was higher in summer than in winter, showing the peak in the summer by 35 species and the low in the winter by 20 species. The number of individuals and the biomass peaked in the summer by 690 individuals and 151.4 kg, and were the lowest in the autumn by 336 individuals and 76.6 kg. The annual diversity index, evenness index and richness index were appeared to be 2.54-2.75, 0.68-0.76 and 5.32-6.65 at each stations. The dominance index was appeared to be the highest in 2018 and the lowest in 2015. Marbled rockfish (Sebastiscus marmoratus), rock fish (Sebastes inermis), filefish (Stephanolepis cirrhifer), rabbit fish (Siganus fuscescens), porcupine fish (Diodon holocanthus) and smallscale blackfish (Girella melanichthys) were dominant species, which occurred abundantly during the entire survey period. Subtropical fishes were identified as a total of 24 species (48.0%) and the number of species was higher in 2019 by 20 (60.6%) species and lower in 2015 by 13 (44.8%) species. The dominant species of the subtropical fishes were appeared to be rabbit fish, porcupine fish, smallscale blackfish, flag fish (Goniistius zonatus), stripey (Microcanthus strigatus), grunter (Parapristipoma trilineatum), and bluestriped angelfish (Chaetodontoplus septentrionalis) at the study sites.

목차
서 론
재료 및 방법
결 과
    해양환경 특성
    연도별, 계절별 종조성 현황
    아열대성 어류 어획현황
    우점종
    군집지수
    유사도
고 찰
결 론
References
저자
  • 고준철(국립수산과학원 제주수산연구소) | Jun-Cheol KO (Jeju Fisheries Research Institute, National Institute of Fisheries Science) Corresponding author
  • 한송헌(국립수산과학원 제주수산연구소) | Song-Heon HAN (Jeju Fisheries Research Institute, National Institute of Fisheries Science)
  • 김보연(국립수산과학원 제주수산연구소) | Bo-Yeon KIM (Jeju Fisheries Research Institute, National Institute of Fisheries Science)
  • 최정화(국립수산과학원 제주수산연구소) | Jung-Hwa CHOI (Jeju Fisheries Research Institute, National Institute of Fisheries Science)
  • 황강석(국립수산과학원 수산자원연구센터) | Kang-Seok HWANG (Fisheries Resources Research Center, National Institute of Fisheries Science)