Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Distribution and Spawning of the Yellow Goosefish , Lophius litulon

황아귀 Lophius litulon 의 분포와 산란

  • Published : 1997.06.01
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Abstract

Variation of the catches and fishing grounds, and spawning ecology of Lophius litulon caught by large staw net were investigated from following as ; L. litulon caught through the year, and the peak in catches showed on January in winter, and the lowest catches showed on August in summer. The fishing grounds of L. litulon were located in the Yellow Sea and the East China Sea. And the main fishing ground was formed in the adjacent waters of Ilhyang-cho, where catches and CPUE were more than 50 M/T, 5 kg/haul, respectively, and the range of coefficient of variation(C.V) was 0.6~0.7. The spawning season of L. litulon was on March and April, when spawning area was formed in waters between Ilhyang-Cho and Cheju-Do. The fishing grounds distribution of L. litulon was obviously different with seasonal variation. Namely, in winter, the fishing grounds were mainly formed in the western waters of Cheju-Do, and on March and April( in spawning season), the fishing grounds were densely formed in the adjacent waters of Ilhyang-Cho, and after May, the fishing grounds were widely dispersed towards in the Yellow Sea and the East China Sea with temperature upgrade.

황해와 동중국해역에서 근해안강망에 의해 어획되는 황아귀의 어획량 변동과 어장 분포, 그리고 산란 생태를 구명한 결과는 다음과 같다. 황아귀는 연중 어획되며, 이중 많이 어획되는 시기는 겨울철, 가장 적게 어획되는 시기는 여름철인 것으로 나타났다. 황아귀의 어장은 황해와 동중국해에 널리 분포하고 있으며, 중심어장은 일향초 주변 해역으로 어획량이 50 M/T 이상, CPUE가 5kg/haul 이상, C.V는 0.6~0.7의 범위로 낮게 나타났다. 황아귀의 산란시기는 3월과 4월경이며, 이때의 산란장은 일향초와 제주도 사이해역에서 형성되는 것으로 추정되었다. 황아귀의 어장은 월별에 따라 이동하는 현상을 나타내었는데, 즉, 겨울에는 황해저층냉수와 대마난류수의 남하로 어장은 제주도 서방해역에 주로 분포한다. 또 산란시기인 3월과 4월경이 되면, 일향초 부근 해역으로 어장이 밀집하지만, 산란이 끝난 5월이후가 되면 수온의 상승과 더불어 어장은 황해와 동중국해역으로 널리 분산되는 것으로 나타났다.

Keywords

References

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