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실내 수조에서 수온 변화에 따른 해삼(Apostichopus japonicus, Selenka)의 운동 패턴
오무환(Moo-Hwan Oh),권인영(In-Yeong Kwon),김보라(Bo-Ra Kim),신종훈(Jong-Hun Shin),유화현(Hwa-Hyeon Yu),윤호섭(Ho-Seop Yoon),김태호(Taeho Kim) 전남대학교 어업기술연구소 2013 어업기술연구소보고지 Vol.6 No.1
A series of experiments on the movement patterns of sea cucumber (Apostichopus japonicus) to the change of water temperature (10, 13, 16, 19 and 21℃) were carried out in the indoor water tank. The experiments consisted of the preliminary test (Case 1) and formal experiments (Case 2). In case 1 test, the moving patterns of sea cucumbers inside model cage set up in water tank was examined with naked eye observation. In addition, the moving speed and distance of total sea cucumbers in water tank were analyzed based on the image of video camera and PVS program in the case 2 test. The initial body wet weights of sea cucumber were 33.1±11.3 g in case 1 and 52.9±15.3 g in case 2 , respectively. The movement patterns of sea cucumbers were observed using video camera for 12 hours a day. The movement pattern of sea cucumber showed the highest activity at 10℃ of water temperature. The maximum moving distance and speed of sea cucumber were about 0.78m and approximately 0.028 cm/s at 10℃, respectively. The minimum moving distance and speed of sea cucumber were about 0.01m at 19℃ and approximately 0.0048cm/s at 21℃, respectively. It was observed that the optimum water temperature for the movement of sea cucumber was about 10℃.