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Analysis on the Present Condition of the Korean Stick-held Dip Net Fishery for Pacific Saury in the North Pacific Ocean

북태평양 한국 꽁치봉수망어엽의 현황 분석

  • Published : 2004.05.01

Abstract

This paper presents a general overview of the Korean stick-held dip net fishery for Pacific saury operated in the North Pacific Ocean since 1985. Annual catches, annual centroids distribution of fishing ground, and optimum fishing temperatures were compared between the periods before and after the new Korea-Japan bilateral fishery arrangement established in 1998. Fishing usually began in May and ended by December, during which major catches were taken in the months September~November before the bilateral fishery arrangement between Korea and Japan, whereas in August~October after the arrangement. It was observed that after the arrangement the centroids of fishing ground was shifted from the usual fishing area off the east coast of Japan to the east of South Kuril Islands, 45$^{\circ}$N and 151$^{\circ}$E. Optimum fishing temperatures appeared to be different by month ; 12.5~14.4$^{\circ}C$ in May, 12.0~14.2$^{\circ}C$ in June, 11.4~13.9$^{\circ}C$ in July, 11.4~15.9$^{\circ}C$ in August, 12.9~16.9$^{\circ}C$ in September, 12.7~17.3$^{\circ}C$ in October, 13.1~17.6$^{\circ}C$ in November, and 15.0~19.1$^{\circ}C$ in December. A total of 13 species were caught during scientific observation periods but the target species, Pacific saury, accounted for about 99.9% of the total catch. Although there was no difference in fishing days between those vessels equipped with the sonar and those without sonar, number of set, total catch, and CPUE of those with sonar were higher than those without sonar by 13%, 26%, and 12%, respectively.

북태평양에서 조업하는 우리나라 꽁치봉수망어업의 어획량과 시기별 어장 중심 및 어획적수온 등을 검토하고 조업시 소나 사용에 따른 어획 효과를 분석하였다. 조업 시기는 5~12월이었고 어획 비율과 CPUE 측면에서 볼 때, 한${\cdot}$일 어업협정 발효 이전인 1985~1998년의 주어기는 9~11월로, 발효 이후인 1999~2002년의 주어기는 8~10월로 추정되었다. 한${\cdot}$일 어업협정 이후 어장 중심은 일본 동쪽 연안 측으로부터 러시아 남쿠릴열도 동쪽인 43$^{\circ}$N 와 151$^{\circ}$E 부근으로 이동하였다. 꽁치의 어획적수온은 5월에는 12.5~14.4$^{\circ}C$, 6월은 12.0~14.2$^{\circ}C$, 7월은 11.4~13.9$^{\circ}C$, 8월은 11.4~15.9$^{\circ}C$, 9월은 12.9~16.9$^{\circ}C$, 10월은 12.7~l7.3$^{\circ}C$, 11월은 13.1~17.6$^{\circ}C$ 그리고 12월에는 15.0~19.1$^{\circ}C$이었다. 어획종은 총 13종으로서 목표종인 꽁치가 99.9% 어획되어 대부분을 차지하였다. 조업일수는 소나를 보유한 조업선과 소나를 보유 하지 않은 조업선 사이에 뚜렷한 차이를 나타내지 않았으나 투망횟수, 어획량 및 CPUE는 소나를 보유한 조업선이 각각 13%, 26%, 12% 높게 나타났다.

Keywords

References

  1. Gong, Y. (1984) : Distribution and Movement of Pacific saury, CoJoJabis saira (Brevoort), in the Relation to Oceanographic Conditions in Waters off Korea. Submitted to the University of Tokyo for the degree of Doctor of Agriculture, 160pp
  2. Sablin, V. V. and Pavlychev, V. P. (1982) : Dependence of migration and catch of Pacific saury upon thermal conditions. Bull. Tohoku Reg. Fish. Res. Lab., No. 44, 109-117
  3. Sokal, P. R. and Rohlf, F. J. (1981) : biometry, 2nd. ed. W. H. Freeman and Company, NY, 859pp
  4. Tian, Y., Akamine, T., Suda, M. (2002): Variations in the abundance of Pacific saury (CoJoJabis saira) from the northwestern Pacific in relation to oceanic-climate changes. Fisheries Research. 1447, 1-16
  5. Uda, M. (1961) : Fisheries Oceanography in Japan. Calif. Coop. Oceanogr. Fish. Invest. Reports, VIII
  6. 目黑敏美, 安間元, 機原善之, 山口秀, 山本昭一, 島崎健二(1987) : 北西太平洋におけるサン マの南北分や. 北大次産彙報, 38(2), 126-138
  7. 福鳥信-(1979) : 北西太平洋系サンマの回遊機構の 綜觀的解析. 東北水硏硏究報告, No. 41, 1-70
  8. 相澤幸雄,福島信一(1978) : 東北海區におけサンマ 魚群性狀と漁況變動との關係. 東北水硏 硏究報告, No. 39
  9. 堀田秀之(1967) : 東北海區におけるサンマ資源の數 量變動に關する硏究(VI).東北水硏 硏榮報告 No. 27, 1-10
  10. 小坂淳, 丹野信一(1984) : 態野灘におけるサンマ漁 獲量の變動につぃての一, ニの知見. 東北水硏 硏究報告, No. 46, 21-26
  11. 김기주 (1973) : 꽁치의 어업생물학적 연구, 2. 회유. 한수지, 6(1,2), 49-57
  12. 서학근, 김봉안 (1970) : 한국 동해 꽁치의 분포, 회유 및 산란. 수산자원보고, No. 8. 31-47
  13. 조현수, 이주희, 공영, 김종빈, 김태익, 문대연 (1996) : 북서태평양 꽁치봉수망 어획량과 수온과의 관계. 한국어업기술학회지, 32(3), 249-256
  14. 한희수, 공영 (1965) : 꽁치의 어항에 대하여. 수산 자원보고, No. 6, 13-35
  15. 한희수, 공영 (1968) : 꽁치의 어황과 해황과의 관계. 수진연구보고, No. 3, 45-56
  16. 허종수, 김종두 (1958) : 꽁치 자원조사 보고. 수산자원보고, No. 3, 55-69