A Study on the Transport of Anchovy Engraulis japornicus Egg-larvae in the South Sea of Korea

한국 남해안의 멸치(Engraulis japornicus) 난자치어 수송에 관한 연구

  • Kim, Dong-Sun (Research Center for Ocean Industrial Development(RCOID), Pukyong National University) ;
  • Bae, Sang-Wan (Research Center for Ocean Industrial Development(RCOID), Pukyong National University)
  • 김동선 (부경대학교 해양산업개발연구소) ;
  • 배상완 (부경대학교 해양산업개발연구소)
  • Received : 2011.07.20
  • Accepted : 2011.09.28
  • Published : 2011.11.30


To understand the transport of anchovy egg-larvae, an integrated model consisting of a hydrodynamic model and a three-dimensional Lagrangian diffusion model was used for the anchovy Engraulis japornicus egg-larvae trace. Fist, in order to determine the circulation characteristics of the South Sea of Korea, residual flow according to tide, density and wind effect was investigated. In offshore regions, tide-induced residual current tends to flow eastward during the spring tide and westward during the neap tide. Residual flow is irregular due to the bottom topography in the coastal area. No special tendency was apparent in the open sea. Especially, the flow in the offshore regions showed results similar to that of the Tsushima Warm Current. The transport of anchovy egg-larvae is decided the physical properties of sea water. It is estimated that anchovy eggs spawned near the Jeju Island travels offshore, rather than to coastal areas, and grow in the front area between the coastal sea and offshore regions.


Egg-larvae;Integrated model;Lagrangian;Diffusion;Residual flow;Tide-induced residual current


Supported by : 부경대학교


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