Study for fishery management measure on gape net with wings with catch composition in the water of Jin-do

Abstract

In this study, we conducted field surveys to investigate and analyze species and length composition of catch from gape net with wings being set in two areas-Masari, Supomri-located in southern part of Jin-do for understanding fishing characteristics of gape net with wings fishery from March to September of 2011. And with those results, we attempted to propose fishery management strategy to harvest fisheries resources continuously. Catch obtained from field surveys comprised total 78 species, which accounted for 53 species of fish, 20 species of crustacean, 4 species of cephalopod and one of polychaete. As to species composition in weight, it showed that there was 88.5% for pisces, 9.0% for cephalopoda and 2.5% for crustacea. As to catch specifics by area, there was 36 species (596,891 individual, 456,551g) of pisces, 17 species (35,815 individual, 12,909g) of crustacea and 3 species (2,876 individual, 3,004g) of cephalopoda in Masari area. In Supumri area, there was 41 species (396,898 individual, 281,457g) of pisces, 15 species (16,113 individual, 7,772g) of crustacea and 4 species (6,792 individual, 72,329g) of cephalopoda and one polychaeta (36 individual, 11g). Catch of anchovy by month recorded on high level on June, July, September in both areas. When considering size composition by month, it was found that new populations recruit to these fishing grounds on June and September. Most of bycatch species including hairtail (Trichiurus lepturus), dotted gizzard shad (Konosirus punctatus), conger eel (Leptocephalous), Pacific sandlance

Species Composition of Fish Collected by a Gape Net with Wings in the Coastal Waters of Jindo, Korea

“…(Jeong et al, 2009). , 56 (Huh and kwak, 1998b), 53 (Hwang, 1998), 63 (Han and Oh, 2007), 53 (Shin et al, 2013) • (pelagic fish) (Kim et al, 2005). (Huh and Kwak, 1998a;Lee et al, 2011;Jeong et al, 2013).…”

“…, , (Engralius japonicus) (Cho et al, 2014). , 90% (Han and Oh, 2007;Shin et al, 2013;Yoo et al, 2014).…”

Comparison of fishing gears and catches by areas in the Gape net with wings in Jeonnam, Korea

“…서해 고군산도 연안에서의 낭장망 어획물의 종조성 및 계절변동에 관한 연구 (Han et al, 2007, Song et al, 2008, Hwang, 1998, 한국 완도해역 낭장망 어업의 어획량 변 동과 수온의 영향에 대한 연구 (Kim et al, 2002), 전남 진 도지역 낭장망 어업에 있어서 혼획 연구 (Kim et al, 2012), 진도해역 낭장망의 어획물 실태에 따른 어업관리 방안에 관한 연구 (Shin et al, 2013 이후 출현종수가 10종 이하로 감소하였다 (Table 2) (Table 3). 개체수는 멸치가 많이 채집된 6-9월에 많았으 나, 종수는 4월을 제외하곤 9-14종 사이에서 월 변동을 하였다 (Table 3) …”