Density Dependent Growth and Survival Rates of Atrina pectinata in Duekryang Bay, Korea
Kim, Dae-Hong
Yoon, Ho-Seop
An, Yun-Keun
Lee, Sa-Dong
Choi, Sang-Duk
The Korean Journal of Malacology / The Korean Journal of Malacology, (P)1225-3480;
2008, v.24 no.2, pp.137-142
Kim,,
D.
, Yoon,,
H.
, An,,
Y.
, Lee,,
S.
, &
Choi,,
S.
(2008). Density Dependent Growth and Survival Rates of Atrina pectinata in Duekryang Bay, Korea. , 24(2), 137-142.
Abstract
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 $28.0^{\circ}C$ 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./$m^2$), 0.26, 0.29%(10 indiv./$m^2$) and 0.21, 0.20%(35 indiv./$m^2$). The survival rate also decreased along the density gradient; highest at the lowest density of 5 indiv./$m^2$ and lowest at the maximum density of 35 indiv./$m^2$.
- keywords
-
Atrina pectinata,
daily growth rate,
survival rate,
density dependent
ISSN : 1225-3480
