Species composition and seasonal variations of fish in the Five West Sea Islands in Korea, were investigated by using otter trawls and bongo nets from 2014 to 2015. During the surveyed period using an otter trawl, a total of 53 species, 147,253 ind./km2 and 2,721,296 g/km2 of fish were collected by otter trawls. The individual dominant species were Chaeturichthys stigmatias (30.3%), Coilia nasus (18.2%), Engraulis japonicus (12.3%), and Setipinna tenuifilis (12.2%). Moreover, the biomass dominant species in biomass were Liparis tanakae (21.3%), Beringraja pulchra (18.5%), Engraulis japonicus (8.3%) and Okamejei kenojei (8.1%). Eggs by bongo nets included 1,748 ind./1,000 m3 of Engraulis japonicus and 64,691 ind./1,000 m3 of unidentified species. A total of 15 species and 2,015 ind./1,000 m3 of fish larvae were collected, and the dominant species were Johnius belengerii and Pholis fangi.

서 론
재료 및 방법
결 과
수온 및 염분 변동
    트롤 조사에 의한 종조성 및 출현량 변동
    봉고네트에 의한 어란 및 자치어 종조성 및 출현량 변동
고 찰
결 론
References

• 윤병일(국립수산과학원 서해수산연구소) | Byoung il YOUN (West Sea Fisheries Research Institute, National Institute of Fisheries Science)
• 최동혁(국립수산과학원 서해수산연구소) | Dong Hyuk CHOI (West Sea Fisheries Research Institute, National Institute of Fisheries Science)
• 임양재(국립수산과학원 수산자원센터) | Yang Jae IM (Fisheries Resources Research Center, National Institute of Fisheries Science)
• 김정년(국립수산과학원 수산자원센터) | Jung Nyun KIM (Fisheries Resources Research Center, National Institute of Fisheries Science)
• 김맹진(국립수산과학원 서해수산연구소) | Maeng Jin KIM (West Sea Fisheries Research Institute, National Institute of Fisheries Science) Corresponding author