참조기 유자망 어업의 현황과 어획변동에 관한 연구

Abstract

In order to obtain the fundamental data on the status and the catch fluctuation of the yellow croaker by the off-shore drift gill net in korea waters, this paper was investigated centering around Jeon-nam and Jeju. The total catch of the yellow croaker was 48,843M/T in 1980 and 7,035M/T in 1995. Since the second half in 1980s, the total of the yellow croaker increased and reached 39,713M/T in 1992. The catch period of the off-shore drift gill nets in korean waters was from Jan. to Apr. of the first half year and from Sep. to Dec. of the latter half year, respectively. The catch rate of the yellow croaker was 41% in the first half year and 47% in the latter half year until 1990s. But since 2000s, that was changed to 21% in the first half year and 76% in the latter half year, respectively. Up to 1980s, the catch rate of the yellow croaker by the danish seine reached 44.6% while only 7.6% by the gill net, respectively. But since 2000, the catch by the gill net increased gradually and reached over about 60% in 2009. The catch rate by the drift gill net for the yellow croaker in korean waters was 8% in 1980s and 4% in 1990s. But in 2000, the catch rate increased to 27.2%. The catch rates by the fishing gears in 2009 were in the order of 63% in gill net, 17% in stow net on anchor, 85 in buttom pair trawl, 2% in danish seine and so on. The rate of the consignment by the National Federation of fisheries Cooperatives in Jeju and Jeon-nam was in the order of 43% at Mokpo, 31% at hanlim, 10% Chuja and below 10% at the others in 2009, respectively. The catch per unit tonnage was 1.54M/T in 2004 and showed the maximum of 4.12M/T in 2009. The catch per fishing boat was 53.25M/T in 2004 and showed the maximum of 142.41M/T in 2009. The catch per unit width of fishing gear was 0.08M/T in 2004 and showed the maximum of 0.22M/T in 2009.