한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)

  • 제44권3호
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  • Pages.267-275
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  • 2011
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  • 0374-8111(pISSN)
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  • 2287-8815(eISSN)
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
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동중국해 북부해역에서의 살오징어(Todarodes pacificus) 유생의 분포

Distribution of Larvae of the Common Squid Todarodes pacificus in the Northern East China Sea

  • 김중진 (부경대학교 자원생물학과) ;
  • 이화현 (부경대학교 자원생물학과) ;
  • 김수암 (부경대학교 자원생물학과) ;
  • 박철 (충남대학교 해양학과)
  • Kim, Jung-Jin (Department of Marine Biology, Pukyong National University) ;
  • Lee, Hwa-Hyun (Department of Marine Biology, Pukyong National University) ;
  • Kim, Su-Am (Department of Marine Biology, Pukyong National University) ;
  • Park, Chul (Department of Oceanography, Chungnam National University)
  • 투고 : 2011.03.11
  • 심사 : 2011.06.08
  • 발행 : 2011.06.30
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초록

The common squid Todarodes pacificus is an ecologically and commercially important species in Korea and Japan. However, the distribution pattern of its eggs and larvae in Korean waters has not yet been clarified. To determine the horizontal and temporal distribution of common squid larvae in the northern East China Sea, samples collected using paired, 60 cm diameter Bongo nets from the three surveys conducted in August 2003, May 2004 and November 2005 were examined. In addition, the vertical distribution was examined from the samples collected using a $1\;m^2$ MOCNESS in April 1999 (20 m interval down to 100 m). A total of 218 larvae ranging in mantle length (ML) from 1.2 to 17.0 mm were counted at 27 stations. Larval abundance was highest in May 2004. The larvae mainly occurred in the southeastern area of Jeju Island, where the water temperature and salinity at 50 m deep ranged from $15-23^{\circ}C$ and 34-34.6 psu, respectively. Most larvae were collected in the frontal zone, where the Tsushima Warm Current and inshore waters meet. The results from the MOCNESS samples showed that the larvae occurred mostly in 20-80 m depth ranges (about 90%), although collections were only conducted above 100 m. No significant differences in larval mantle lengths (ANOVA, P>0.05) were found among each depth interval. Given the occurrence sites of the larvae <2.0 mm ML, the spawning ground of this species appears to be within the northern East China Sea, mainly to the southeast and northeast of Jeju Island, in early spring.

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참고문헌

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피인용 문헌

  1. Understanding interannual variability in the distribution of, and transport processes affecting, the early life stages of Todarodes pacificus using behavioral-hydrodynamic modeling approaches vol.138, 2015, https://doi.org/10.1016/j.pocean.2015.04.003
  2. Distribution of the Common Squid Todarodes pacificus Paralavae in the Southern Coastal Waters in the East Sea in August and September 2013 vol.19, pp.3, 2014, https://doi.org/10.7850/jkso.2014.19.3.215
  3. Seasonal Characteristics of Todarodes pacificus Paralarval Distribution in the Northern East China Sea vol.47, pp.1, 2014, https://doi.org/10.5657/KFAS.2014.0059
  4. Distribution of Water Temperature and Common Squid Todarodes pacificus Paralavae around Korean Waters in 2013, 2014 vol.22, pp.1, 2016, https://doi.org/10.7837/kosomes.2016.22.1.011