Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)
- Volume 29 Issue 2
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- Pages.94-108
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- 1993
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- 2671-9940(pISSN)
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- 2671-9924(eISSN)
Environmental Factors and Catch Fluctuation of Set Net Grounds in the Coastal Waters of Yeosu
여수연안 정치망 어장의 환경요인과 어황 변동에 관한 연구
Abstract
In order to investigate the relation between the environmental properties and catch fluctuation of set net fishing ground located in the coastal waters of Yeosu, oceanographic observation and catches on the grounds were carried out from Jan. to Dec. in 1990 and 1992. The results obtained are summarized as follows; 1) Because of the surveyed area is a costal shallow water, the fishing ground was influenced largely by atmospheric phenomena such as air temperature. precipitation. etc. and so showed large variations in temperature and salinity yearly. The inner water flowed out mainly between Yeosu ad Namhe-do, and then through Kumo-do between Dolsan-do and Kumo-do. On the other hand, off shore water was supplied into the fishing ground from the vicinity of Sori-do and Yokchi-do. thus the fishing ground was occupied usually by various sources of water. 2) The water mass in the fishing ground were divided into the inner water(29.0~30.6
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