전자저널 > 전자저널 > Density Dependent Growth and Survival Rates of Atrina pectinata in Duekryang Bay, Korea

Density Dependent Growth and Survival Rates of Atrina pectinata in Duekryang Bay, Korea

Dae Hong Kim, Ho Seop Yoon, Yun Keun An, Sa Dong Lee and Sang Duk Choi

Aquaculture Program, Fisheries and Ocean Science, Chonnam National University, Yeosu 550-749, Korea

Growth and survival rates dependent on the density of a pen sell, Atrina pectinata were measured from Duekryang bay in Korea. Annual water temperature and salinity of the study area were ranged from 14.5 to 28.0℃ and from 27.98 to 31.89 psu, respectively. The pH, DO, COD, DIN, Chl-a and SPM in the study area ranged from 7.78-8.35 mg/L, 7.07-7.90 mg/L, 1.20-1.70 mg/L, 2.88-6.02 mg/L, 0.20-0.79 mg/L and 10.8-21.4 mg/L. The IL, COD and AVS in sediments ranged from 4.0-4.6%, 7.28-10.76 mg/L and 0.03-0.05 mg/L respectively. The daily growth rate of shell height and total weight were 0.27%, 0.33% (5 indiv./m2), 0.26, 0.29% (10 indiv./m2) and 0.21, 0.20% (35 indiv./m2). The survival rate also decreased along the density gradient; highest at the lowest density of 5 indiv./m2 and lowest at the maximum density of 35 indiv./m2.

9-최상덕12.pdf (421.7K), Down : 151, 2008-10-09 14:25:36