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나로도 주변 해역에서 어업자원의 계절별 어획물의 종특성과 변동
민은비(Eunbi MIN),윤주원(Juwon YUN),윤은아(Eun-a YOON),황두진(Doojin HWANG) 전남대학교 어업기술연구소 2017 어업기술연구소보고지 Vol.10 No.1
Seasonal variation in catch-per-unit-effort (CPUE), species composition and size frequency distribution of major fish were analyzed by gill net, trap net, and long line in the Korean coastal area of Go-heung in 2016. The dominant fish species were Portunus trituberculatus in gill nets, Charybdis japonica in trap nets and Muraenesox cinereus in long lines. Seasonal catch was the most in July and was the least in March. Catch by fishing gear was the highest in gill net and was the lowest in long line. The dominant species are similar to seasonal biological properties. Species compositions did not vary greatly by season.
고흥 외나로도 연안에서 자망, 통발, 주낙에 어획된 어족생물의 종조성 및 어획량 변동
윤은아,황두진,민은비,조남경,한영민,YOON, Eun-A,HWANG, Doo-Jin,MIN, Eunbi,CHO, Nam-Kyung,HAN, Yeoung-Min 한국수산해양기술학회 2017 수산해양기술연구 Vol.53 No.3
The species composition and variation in abundance of fishery resources near Oenarodo, Go-heung Peninsula, Korea, were investigated by gill net, trap net, and longline in May, July, and October 2015 and 2016. During the study period, the total catch included 14 species in the gill net, 11 species in the trap net, and 4 species in the longline. The dominant species were Portunus trituberculatus and Raja pulchrain the gill net, Charybdis japonicaand and Octopus vulgarisin in the trap net, and Muraenesox cinereusin in the longline. The Catch Per Unit Effort (CPUE) per individual and per weight in the gill net were similar in May and July of 2015 and 2016. In October 2015, the CPUE per individual was 2.1 ind./h and the CPUE per weight was 505 g/h higher than the results in 2016, but there was no significant difference in the total CPUE between 2015 and 2016. In the trap net, the CPUE per weight was similar in both 2015 and 2016, but the CPUE per individual was 2.7 ind./h higher in October 2015 than in October 2016 and the total CPUE was not significantly different from 2015 to 2016. The CPUE per individual and weight in the longline were significantly higher in July and October 2015 than in the same months of 2016, but the total CPUE in 2015 and 2016 did not show a significant difference.
새꼬막의 선별과정 현황과 문제점을 고려한 자동화 선별 시스템 요소기술
정석봉,황두진,윤은아,민은비,최병대,정용길,JEONG, Seok-Bong,HWANG, Doo-Jin,YOON, Eun-A,MIN, Eunbi,CHOI, Byeong-Dae,JUNG, Yong-Gil 한국수산해양기술학회 2017 수산해양기술연구 Vol.53 No.3
Seafood is attracting attention as a future food industry. In recent years, the demand for fishery equipment of mechanization, automation, and unmanned was increased due to the environment affected by seafood processing, stricter regulations on safety, decline and aging of fishery worker. Ark shell (Scapharca subcrenata) was being produced in many steps in the production process. The process has been made such as collection-landing-washing-first sort (goods/non-goods)-transports-second sort (size). It was undergone first and second steps by delivering to the consumer. Here, the first step is to sort goods to collection and the second step is to sort by size. The fishery workers need ten people in first step and six people in second step. The workload of one hour per kg is 4,247 kg/h in first step and 2,213 kg/h in second step. In addition, the goods ratio by work process was 79% in first step and 98% in the second step. In this process, a lot of fishery worker and working time is needed. Therefore, this study developed elemental techniques for an automated size sorting system considering the working process problem, time and situation for washing and sorting of ark shell.