수산해양기술연구(구 한국어업기술학회지) 57권 1호 (p.25-33)

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제주도 신산 연안 정치망 어획물의 종조성 및 어획량 변동

Species composition and variation of catches by a set net in the coastal waters of Sinsan, Jeju Island
키워드 :
Sinsan,Set net,Trachurus japonicus,Scomber japonicus,Immature fishes

목차

서 론
재료 및 방법
결 과
   전체 어종 출현현황
   월별 주요 어종의 어획량 변동
   주요 어종 체장조성
   군집구조 변화
   종간 출현시기 유사성
고 찰
결 론
References

초록

Species composition and variation of catches in the coastal waters of Sinsan of Jeju Island were determined using samples collected by a set net from May 2014 to October 2015. During the survey period, a total of 55 species (51 species, 35 families and 11 orders in fishes, 4 species, 2 families and 2 orders in cephalopods) were occurred, and Perciformes (28 species) were dominant fishes in this area. In the number of individuals and biomass, the small pelagic fishes such as Trachurus japonicus and Scomber japonicus were occurred abundantly, and both species accounted for 95.9% of the total catch by a fishing logbook of a set net. In the results of length-frequency distribution of small pelagic fishes caught by a set net in Sinsan, T. japonicus showed a range from 3.5-19.1 cm (average 8.8 cm) and S. japonicus showed a range from 7.0-25.6 cm (average 16.8 cm). In addition, these were mostly immature fishes.