Ocean Science Journal

, Volume 50, Issue 3, pp 537–545 | Cite as

Larval distribution pattern of Muraenesox cinereus (Anguilliformes: Muraenesocidae) leptocephali in waters adjacent to Korea

  • Hwan-Sung Ji
  • Jin-Koo Kim
  • Taeg Yun OhEmail author
  • Kwang Ho Choi
  • Jung Hwa Choi
  • Young Il Seo
  • Dong Woo Lee


To understand the transport and recruitment processes of the daggertooth pike conger, Muraenesox cinereus, in the marginal seas of East Asia, we investigated the distribution pattern, estimated spawning areas and periods, and recruitment mechanisms of M. cinereus, based on 51 individuals of leptocephali collected from Korean waters during 2010–2014. Back-calculated hatching dates, determined from the daily incremental growth rates of the otoliths, indicated that the spawning period for M. cinereus was during July–September. The size range of M. cinereus leptocephali collected offshore of Jeju Island and southeast of the Korea-Japan intermediate zone was 16.6–20.9 mm TL (age, 18–23 d). We hypothesize that one of the spawning grounds of M. cinereus is located offshore in the East China Sea. In Korean waters, the ages and body lengths of M. cinereus leptocephali increased northward from latitude 31°30′N to 34°40′N, with metamorphosis occurring at latitude 34°40′N. Therefore, we surmised that the hatched preleptocephali of M. cinereus were transported from offshore areas in the East China Sea to Jeju Island and the Korea Strait (KS) by the Kuroshio and Tsushima Warm Current.


Muraenesox cinereus leptocephalus distribution otolith spawning period and area recruitment mechanism 


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Copyright information

© Korea Ocean Research & Development Institute (KORDI) and the Korean Society of Oceanography (KSO) and Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Hwan-Sung Ji
    • 1
  • Jin-Koo Kim
    • 2
  • Taeg Yun Oh
    • 1
    Email author
  • Kwang Ho Choi
    • 3
  • Jung Hwa Choi
    • 1
  • Young Il Seo
    • 1
  • Dong Woo Lee
    • 1
  1. 1.Fisheries Resources Management DivisionNFRDIBusanKorea
  2. 2.Department of Marine Biology, College of Fisheries SciencesPukyoung National UniversityBusanKorea
  3. 3.Dokdo Fisheries Research Center, East Sea Fisheries Research InstituteNFRDIPohangKorea

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