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자료유형
학술저널
저자정보
권인영 (전남대학교) 오무환 (전남대학교) 강소희 (전남대학교) 김대성 (전남대학교) 이동주 (전남대학교) 윤호섭 (전남대학교) 김태호 (전남대학교)
저널정보
전남대학교 어업기술연구소 어업기술연구소보고 어업기술연구소보고지 제6권 제1호
발행연도
2013.2
수록면
47 - 54 (8page)

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The purpose of this study is to examine the feed selectivity of octopus (octopus vulgaris) and the survival and growth rates of octopus in two cage models (tube and den type) set up in the indoor water tank. The two trial tests (feed selectivity and ongrowing) were conducted for 14 days (13 September to 26 September, 2012) and 25 days (15 May to 8 June, 2012), respectively. The size of fishing pot used in the feed selectivity was 300D×615L ㎜. The frame of two cage models were made of poly propylene pipe and the sizes of cage models were 1070L×500B×330D ㎜, composed of plastic pots (Φ120 ㎜×8 pieces) in tube type cage and 980L×460B×570D ㎜, constructured of PVC pipes (Φ70 ㎜) for den was. In the experiments, the water temperatures ranged from 15 to 16℃ and salinity was 33 psu. A total of 2 specimens (body weight: 700-1100 g) in the case Ⅰ and 20 specimens (body weight: 594±127.60 g) in the case Ⅱ were used. The feed used in the tests were crab, mussel, mackerel and manila clam and food ratio was 3-8% of body weight. The results of the experiment (e.g. biological parameters) were analyzed with the statistical computer package SPSS ver. 20. According to the results of case Ⅰ experiments, crab (51%) and mackerel (38%) were high in feed selectivity of octopus. The survival rate (80%) of octopus in den type model were higher than that (33.3%) of tube type model. The reason of high mortality in tube type model is estimated to stress suffered form a small space. Further study was needed to draw more accurate results considering the improvement of cage model structure and test conditions like noise, intensity of illumination, etc.

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UCI(KEPA) : I410-ECN-0101-2015-520-001306421