전자저널 > 전자저널 > Growth and Survival of the Hard Clam, Meretrix petechialis (Lamarck) Larvae to Food Organisms

Growth and Survival of the Hard Clam, Meretrix petechialis (Lamarck) Larvae to Food Organisms

Tae-Ik Kim, Chang Sun Ko, Young Baek Hur, Mun Ho Yang and Young Jin Chang

Southwest Sea Fisheries Research Institute, NFRDI, Yeosu 556-823, Korea Korea Fisheries Resources Agency, Busan 612-020, Korea Southeast Sea Fisheries Research Institute, NFRDI, Tongyeong 619-705, Korea Pukyong National University, Busan 608-737, Korea

The investigated amounts according to microalgae for stable supply of artificial seed of the hard clam, Meretrix petechialis and also observed the effect according to the repower of the microalgae after the specified period starvation. The stage of specimen used in the test was the D-shaped larva. The microalgae was Chaetoceros calcitrans, Isochrysis galbana and Nannochloris oculata. When the mixture of Chaetoceros calcitrans, Isochrysis galbana and Nannochloris oculata or alone C. calcitrans as food was supplied with 3,000-5,000 cells/ind., it turned to be the most effective. When the food was provided after starvation for some period, the shell length of D-shaped larva was grown to over 192.5 μm at fourth day from the initial feeding. The survival rate tended to be lower, the longer the starvation period.

v27_3_175-180.pdf (513.0K), Down : 116, 2012-02-01 17:10:33