한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)

  • 제40권6호
  • /
  • Pages.394-410
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  • 2007
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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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제주도 주변해역의 해양환경요인과 멸치 난자치어 분포

Environmental Factors and the Distribution of Eggs and Larvae of the Anchovy (Engraulis japonica) in the Coastal Waters of Jeju Island

  • 고준철 (국립수산과학원 제주수산연구소) ;
  • 유준택 (국립수산과학원 제주수산연구소) ;
  • 노홍길 (한라연안어장관리연구소)
  • Ko, Joon-Chul (Jeju Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Yoo, Joon-Taek (Jeju Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Rho, Hong-Kil (Research Institute of Management Coastal Waters Fishing Ground of Halla)
  • 발행 : 2007.12.31
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초록

Anchovy spawn from the end of May to mid-October, when the water temperature is $14.8-27.2\;^{\circ}C$ and the salinity is 26.0-33.6 psu. The main spawning season is between July to August, when the water temperature is $21.7-27.2\;^{\circ}C$ and the salinity is between 26.0-32.2 psu. The main spawning grounds of anchovy are coastal areas shallower than 50 m around the islands located in the Jeju Strait. Anchovy larvae are distributed near the fronts between Chuja-do, Jangsu-do, Yeoseo-do, and the open sea rather than in the spawning grounds. Anchovy eggs and larvae density increased in accordance with the high level of $Chlorophyll-{\alpha}$ during the summer season (July-August). In terms of the suspended sediment (SS) levels along the northern coast of the Jeju Strait, high densities of anchovy eggs (12.0-18.0 mg/L) were observed, mainly in the area affected by the coastal waters of the southern sea with high SS levels, while larvae (10.0-19.0 mg/L) tended to be distributed over a wide area with high SS levels, including the open sea. In terms of the dissolved oxygen (DO) content, eggs (5.4-6.8 mg/L) were observed in coastal areas with a high DO content, while larvae (4.2-6.4 mg/L) were distributed widely in areas with a relatively low DO content, from the southern coast to the open sea.

키워드

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피인용 문헌

  1. Acoustic characteristics of Anchovy schools, and visualization of their connection with water temperature and salinity in the Southwestern Sea and the Westsouthern Sea of South Korea vol.50, pp.1, 2014, https://doi.org/10.3796/KSFT.2014.50.1.039
  2. Environmental factors affecting anchovy reproductive potential in the southern coastal waters of Korea vol.17, pp.2, 2007, https://doi.org/10.1080/19768354.2013.782896
  3. 춘계와 동계에 남해안 멸치어군의 주파수 반응 특성 vol.52, pp.2, 2007, https://doi.org/10.3796/ksft.2016.52.2.111