전자저널 > 전자저널 > Studies on the Growth of the Bay scallop, Argopecten irradians in Winter Season in South Sea of Korea

Studies on the Growth of the Bay scallop, Argopecten irradians in Winter Season in South Sea of Korea

Bong Sae Oh and Choon Goo Jung

South Sea Fisheries Research Institute, Yeosu 556-820, Korea

To develop new products for aquaculture , which fishermen at South Sea can get high income , after bay scallop was trans planted from Sandong province in China from October 17, 1996 to March 18, 1997 at Due krang Bay in Janghung gun and Kamak Bay in Yeosu city on Chollanam province , Sumjin rive restuary in Hadong gun and Gejae Bay in Keoje city on Kyongsa ngnam province . Temperature was decreased from 20.5 ℃ to 5.1℃ in Februa ryand then it was increased to 12.0 in March. Ranges of salinity, DO and Chlorophyll-a were 22.40-34 .70 psu, 5.24-9.77 mg/l and 1.27-22.28 g/l, respectively, and low tempe rature , sudden changes of salinity and low conce ntration of Chlorophyll-a influenced the growth of bay sca llop. bay scallop in the rea ring period showed the fastest growth from October 17 to November 18 through the every size rages , while it grews lowly or stopped growing from December 18 to March 18. Among 4 transplanted areas , young scallop at Due krang Bay showed the fastest growth and then Kamak Bay, Gejae Bay, Sumjin estuary in order. The daily growth rate of young scallop in the middle size range (5.70%) was higher than those in large (2.07%) and small (5.49%) size range . The meat weight indexs howed the highest in December. Survival rates from October to December we rehigh, not related to the size ranges , but surviva l rate of the small young scallop from January to March was higher than those of the rest. As the result, trans planted bay scallop at South Sea was shown to grow by the middle of December (around 10 ℃ tempe rature).

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