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학제간연구 과학기술학 뇌인지과학 기술정책 기타 복합학

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논문 기본 정보

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학술저널
저자정보
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한국수산해양기술학회(구한국어업기술학회) 수산해양기술연구 수산해양기술연구 제44권 제3호
발행연도
2008.1
수록면
184 - 193 (10page)

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초록· 키워드

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For environment-friendly fishery, the lead sinkers of octopus drift line were developed with the environment friendly sinker, and their characteristics and performance were investigated. To make the environment-friendly sinker, the hydrate ceramic material was developed, and to increase the weight and strength, the iron power was added to it. The fishing hook was machine-made, and standardized, by using 60cm iron wire. For the manufacture of the sinker, the first, the mold was made, and then, hydrate ceramic material and water were quantitatively mixed. The mixture was poured into the mold prepared with a fishing hook already inserted, and had hardened for several hour, before it was taken out of the mold as a complete sinker. The sinkers were made in the 8 types ranging in weight from 150 to 500gram, and their specific gravities were diverse from 2.871 to 6.637, which was 0.19 to 0.44 times lower than that of lead. The movement of the environment-friendly sinker by flume tank was possible in the weaker current speed than the similar lead sinker. In the coastal fishing grounds of Gangwon province, the comparison of catching efficiency was made between the improved fishing gears composed of the environment-friendly sinkers and artificial baits, and the current used fishing gears of lead sinkers and pig-fat baits. The result showed the tendency in which the improved fishing gears caught the bigger octopuses than the current used fishing gears. In the quantity and number of the fish catch per unit fishing gear, the improved fishing gear showed a little more catch than the current used fishing gear, regardless of the fishing area. However, the number of the improved fishing gears lost during fishing operation was similar to that of the current used fishing gears.
#Octopus drift-line #Environment-friendly sinker #Catching efficiency

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참고문헌 (19)

참고문헌 신청
An, Y.I. / 2005 / Octopus fisheries in the coastal waters of Gangneung , pot fishery / J. Kor. Soc. Fish. Tech 42 : 78 ~ 85 google schola An, Y.I. / 2007 / Development of artificial bait for octopus drift-line / J. Kor. Soc. Fish. Tech 43 : 291 ~ 300 google schola Andrew, N.L. / 1993 / An application of the Morisson soft TED to the offshore prawn in New South Wales, Australia / Fisheries Research 16 : 101 ~ 111 google schola Barwick, M. / 2003 / iotransference and biomagnification of selenium copper, cadmium, zinc, arsenic and lead in a temperate seagrass ecosystem from Lake Macquarie estuary, NS google schola Burden, V.M. / 1998 / Effects of lead on the growth and δ-aminolevulinic acid dehydratase activity of juvenile rainbow trout, Oncorhynchus mykiss / Environ. Pollut 101 : 285 google schola

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