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로드셀을 이용한 전복 양식장 먹이 섭이량 모니터링 시스템 개발
강태종 ( Tae-jong Kang ),민은비 ( Eun-bi Min ),유영석 ( Yeong-seok Yu ),이정식 ( Jeong-sik Lee ),황두진 ( Doo-jin Hwang ) 한국수산해양기술학회 2021 수산해양기술연구 Vol.57 No.4
One of the problems with abalone farms is that they need to be checked frequently after feeding them or visited once or twice a day and that the amount of food intake constantly fluctuates due to changes in water temperature around the farm and typhoons. In addition, the condition of abalone is not constant as it is divided into places that eat well and do not eat well according to its location. In order to solve this problem, there is a method of measuring the amount of food intake by using a load cell that can measure even the smallest weight in an abalone farm. Through this study, we implemented a system capable of measuring the amount of abalone feed required for systematic management of abalone farms and real-time monitoring using mobile and client PCs.
외나로도 인접 어장의 주요 상업 어구를 이용한 어류상의 변동
이태균(Tae-gyun LEE),황정현(Jung-hyun HWANG),강태종(Tae-jong KANG),민은비(Eun-bi MIN),황두진(Doo-jin HWANG) 전남대학교 어업기술연구소 2022 어업기술연구소보고지 Vol.15 No.1
Through direct resource surveys using gill net, trap net, and long line, the main commercial fishing grounds in the Oenarodo sea area, the catch by species, population, and catch per unit effort (CPUE) of fish were identified. During the survey, a total of 20 orders, 45 families, 66 species, 374 individuals, and 107.3 kg of aquatic organisms collected from coastal waters of Oenarodo in Go-heung appeared, with a total of 16 species appearing in gill net, a total of 16 species appearing in trap net, and a total of five species appearing in long line. The dominant species were Portunus trituberculatus in gill net, Charybdis japonica in trap net, and Chelidonichthys spinosus in long line. CPUE for fishing gear, long line was the highest, and gill net and trap net showed similar values. The seasonal CPUE showed the lowest value in April and the highest value in June.
양식장 물김 이송 및 중량 자동측정 시스템 개발의 경제성 분석 연구
김대현,민은비,강태종,황두진,Dae-Hyon KIM,Eun-Bi MIN,Tae-Jong KANG,Doo-Jin HWANG 한국수산해양기술학회 2023 수산해양기술연구 Vol.59 No.2
Laver aquaculture, which occupies a large proportion in the aquaculture industry in Korea, is still highly dependent on human labor. Therefore, it is necessary to study the development of an automatic system to improve the working environment and increase the efficiency of aquaculture production systems. The purpose of this study is to evaluate the economic feasibility of an improved system in a study for the loading-unloading and automatic weighing systems in laver aquaculture industry. Economic analysis of the developed unloading and automatic weighing system were implemented under various conditions to calculate more accurate benefits and costs. As a result of this study, the economic feasibility was found to be very high in the three models: net present value (NPV), benefit-cost ratio (B/C), internal rate of return (IRR). Moreover, the results of sensitivity analysis showed that the economical efficiency of the automatic loading, unloading, and weighing system in laver aquaculture was very high.
음향조사를 이용한 태안 북부 연안 바다목장의 월별 어군량 추정
이영재(Yeongjae LEE),국중재(Jungjae GUK),강태종(Tae-jong KANG),민은비(Eun-bi MIN),황두진(Doo-jin HWANG) 전남대학교 어업기술연구소 2021 어업기술연구소보고지 Vol.14 No.1
Acoustic survey is used to analyzed spatio - temporal distribution of fish underwater. The purpose of this study is to survey the vertical and horizontal distributions of fish schools in Northern Taean costal marine rancing area by scientific echo sounder. The survey was conducted in Taean costal marine ranching area on June 26 (1st), August 31 (2nd), October 16 (3rd) and December 10 (4th). According to the survey, the appearance frequency of fish schools is higer at nigttime. Fish distribution was large in August and October. As a result it was found that the distribution of fish school changes according to the time of day or night, the habitat environment. Acoustic surveys should be conducted together with fishing surveys and CTD measurements for data analysis, and it is thought that continuous observation and management will be required by periodic surveys the Northen Taean marine ranching area.
송은지(Eun-ji SONG),이태하(Tae-ha LEE),강태종(Tae-jong KANG),민은비(Eun-bi MIN),황두진(Doo-jin HWANG) 전남대학교 어업기술연구소 2022 어업기술연구소보고지 Vol.15 No.1
A marine ranch is a sea area that artificially creates habitats where artificial structures or natural stones can be installed to inhabit and grow. The purpose of this study is to investigate the vertical and horizontal distribution of fish schools by distance around artificial reefs in central Taean using acoustic survey. The survey was conducted on April 27(1st), July 28(2nd), September 30(3rd), and November 17(4th). According to the survey, more fish schools appear in April and July than in September and November, and more fish schools appear at night than during the day. When examining the density of fish schools by distance of 2km, 3km, and 4km from artificial reefs, the frequency of appearance decreased as the distance from artificial reefs increased. As a result, changes in the distribution of fishing schools were found depending on the day and night and the presence or absence of artificial reefs. Data should be collected and stored using sound research equipment WBT, GPS, Transducer, and Notebook, and it is judged that follow-up management and continuous observation of fisheries resource creation projects are necessary.