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ISSN : 1225-3480

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Vol.26 No.1

DENSITY DEPENDENT GRWOTH AND MORTALITY OF MANILA CLAM Ruditapes philippinarum REARED IN CAGES IN GOMSO-BAY, KOREA

Park, Kyung-Il
Yang, Hyun-Sung
Kang, Do-Hyung
Choi, Kwang-Sik
The Korean Journal of Malacology / The Korean Journal of Malacology, (P)1225-3480;
2010, v.26 no.1, pp.91-95
Park,, K. , Yang,, H. , Kang,, D. , & Choi,, K. (2010). DENSITY DEPENDENT GRWOTH AND MORTALITY OF MANILA CLAM Ruditapes philippinarum REARED IN CAGES IN GOMSO-BAY, KOREA. , 26(1), 91-95.

Abstract

Density-dependant growth and mortality rate of Manila clam Ruditapes philippinarum reared in net cages was investigated in Gomso Bay, Korea where unusually high mortality of clams has been reported. For the experiment, four groups of clam cages were set up with a density of $2,000clams/m^2$ (group A), $1,000clams/m^2$ (group B), $500clams/m^2$ (group C) and $100clams/m^2$ (group D). Mortality and growth of clams in each experimental cage was monitored biweekly from May 2001 to September 2001. Highest mortality in group A was observed in late August, while highest mortality of rest groups was observed in early September. In September, the cumulative mortality in group A was 99%, while it was 93.2% in group B, 91.2% in group C and 88% in group D. Shell growth rate of clams in thecages was found to be density dependent; monthly shell length increase was 0.67 mm in group A, 1.33 mm in group B, 1.63 mm in group C and 1.71 mm in group D. Our study indicated that clam growth and mortality in the Bay is density dependent and the growth and survival rate is negatively correlated with the density.

keywords
Mortality, Ruditapes philippinarum, Perkinsus olseni, Growth rate, Density

Reference

1.

2.

Park, K.-I.;Choi, K.-S.. (2001). Spatial distribution of the protozoan parasite Perkinsus sp. found in the Manila clams, Ruditapes philippinarum, in Korea. Aquaculture, 203(1), 9-22. 10.1016/S0044-8486(01)00619-6.

3.

(1999). . J. Korean Fish. Soc., 32, 303-309.

4.

PARK. (2006). . Aquaculture, 251(2-4), 182-191. 10.1016/j.aquaculture.2005.06.003.

5.

YAN. (2006). . Aquaculture, 253(1-4), 350-358. 10.1016/j.aquaculture.2005.07.030.

6.

7.

8.

Ford, S.E.;Kraeuter, J.N.;Barber, R.D.;Mathis, G.. (2002). Aquaculture-associated factors in QPX disease of hard clams: density and seed source. Aquaculture, 208(1), 23-38. 10.1016/S0044-8486(01)00795-5.

9.

Gagne, F.;Blaise, C.;Pellerin, J.;Fournier, M.;Durand, M.J.;Talbot, A.. (2008). Relationships between intertidal clam population and health status of the soft-shell clam Mya arenaria in the St. Lawrence Estuary and Saguenay Fjord (Quebec, Canada). Environment International, 34(1), 30-43. 10.1016/j.envint.2007.06.010.

10.

Hadley, N.H.;Manzi, J.J.. (1984). Growth of seed clams, Mercenaria mercenaria, at various densities in a commercial scale nursery system. Aquaculture, 36(4), 369-378. 10.1016/0044-8486(84)90329-6.

11.

Lee. (2001). . Aquaculture, 201(3-4), 199-209. 10.1016/S0044-8486(01)00648-2.

12.

LIAO. (2006). . Aquaculture, 257(1-4), 321-332. 10.1016/j.aquaculture.2006.02.076.

13.

Liu, B.;Dong, B.;Tang, B.;Zhang, T.;Xiang, J.. (2006). Effect of stocking density on growth, settlement and survival of clam larvae, Meretrix meretrix. Aquaculture, 258(1), 344-349. 10.1016/j.aquaculture.2006.03.047.

14.

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