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자료유형
학술저널
저자정보
저널정보
한국수산과학회 양식분과 한국양식학회지 한국양식학회지 제13권 제4호
발행연도
2000.12
수록면
339 - 351 (13page)

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Optimal environmental conditions, that sustained fastest growth, lowest mortality and abnormality of the scallop Patinopecten yessoensis, were identified from field experiments undertaken at Chumunjin during 1991~1998. Temperature within the water column 10~30 m depth ranged between 5 and 23℃; high temperature and daily fluctuation resulted in growth retardation and heavy mortality of the scallop. Optimal salinity range was between 31.5 and 34.5‰ and water transparency 6.0 and 18.1 m, which was significantly affected by phytoplankton density. Chlorophyll concentration ranged between 0.04 and 3.51 ㎍/L. Low temperature and high chlorophyll concentration appear to support faster growth of the scallop.
Optimal periods of transplantation for intermediate culture were between mid July and early November: cultured under high density during July~August as a first step and under low density during mid September through early November as a second step. Optimal stocking density in square net cage (35×35 ㎝) for intermediate culture was 30~40 individuals per cage for main culture using lantern net and 80~100 individuals of the size of 1.5~3.0 ㎝ shell height per cage for sowing culture. During the intermediate culture, the highest growth was realized, when the cage was held at water depth between 10 and 15 m. Water depth below 25 m, however, was best to avoid mass mortality during the periods of abnormally high water temperature and high variation of water temperature. The daily growth rate during the intermediate culture was between 0.019~0.381 ㎜; low in January and February but high in March and April. It is suggested that the main culture is commenced before June under low stocking density to avoid the possibility of mass mortality during summer by high water temperature.

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UCI(KEPA) : I410-ECN-0101-2009-529-015350493