A Taxonomic Review of Four Sillaginid Fishes (Perciformes) from the Adjacent Waters of Korea

한국 주변해역 보리멸과(농어목) 어류 4종의 분류학적 재검토

  • Kwun, Hyuck-Joon (Department of Marine Biology, Pukyong National University) ;
  • Kim, Jin-Koo (Department of Marine Biology, Pukyong National University)
  • 권혁준 (부경대학교 자원생물학과) ;
  • 김진구 (부경대학교 자원생물학과)
  • Received : 2010.03.28
  • Accepted : 2010.06.09
  • Published : 2010.06.30

Abstract

A taxonomic review of the family Sillaginidae was carried out based on two species (Sillago japonica and S. parvisquamis) collected in the coastal waters of Korea from 2008 to 2009 and three species (S. parvisquamis, S. aeolus and S. sihama) kept in the museum. Sillago japonica was easily distinguished from S. parvisquamis and S. sihama by lateral line scales (70~73 in S. japonica vs. 77~81 in S. parvisquamis vs. 67~70 in S. sihama) and scales above lateral line (3~4 vs. 7 vs. 5~6, respectively). Sillago aeolus differed from the other three species in having dark brown blotches on the side of body. We newly found morphological differences in some measurements (snout length, pectoral fin length and $2^{nd}$ anal spine length) and the number of vertebrae between Korean and Japanese S. parvisquamis, suggesting the two may be different populations. Although four sillaginid species are known from Korea, only two species (S. japonica and S. parvisquamis) were found in this study; accordingly, the distribution of the remaining two species (S. sihama and S. aeolus) may be restricted to subtropical waters.

본 연구는 2008년부터 2009년 사이에 우리나라 전 연안에서 채집된 보리멸과 2종(청보리멸, 점보리멸) 및 박물관에서 보관중인 보리멸과 3종(점보리멸, 별보리멸, 보리멸)을 대상으로 분류학적 재검토를 실시하였다. 청보리멸은 점보 리멸 및 보리멸과 측선비늘수(청보리멸 70~73 vs. 점보리멸 77~81 vs. 보리멸 67~70)와 측선상부비늘수(3~4 vs. 7 vs. 5~6)에서 잘 구분되었다. 별보리멸은 나머지 3종과 달리 체측에 뚜렷한 짙은 갈색의 무늬를 여러 개 가지고 있었다. 한국산 및 일본산 점보리멸이 계측부위(문장, 가슴지느 러미길이, 뒷지느러미 두번째 극조길이) 및 척추골수에서 차이를 보여 두 집단이 다를 수 있다는 것을 보여주었다. 비록 한국에는 보리멸과 어류에 4종이 알려져 있으나, 본 연구에서는 청보리멸 및 점보리멸 2종만 확인되어, 나머지 2종(보리멸, 별보리멸)의 분포는 아열대해역에 국한될 가능 성이 있다.

Keywords

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