전자저널 > 전자저널 > Preliminary Studies on the Growth Performance of the Subtrophic Noble Scallop Chlamys nobilis in Korean Waters

Preliminary Studies on the Growth Performance of the Subtrophic Noble Scallop Chlamys nobilis in Korean Waters - with a Special Focus on Nursery Life

Seung-Hwan Won, QTae Jo, Seock-Jung Han and Jae-Woo Kim

National Fisheries Research and Development Institute (NFRDI), Busan 610-900, Korea

To evaluate the aquaculture potential of a subtrophic noble scallop, Chlamys nobilis in Korean waters, nurserygrowth of the species was studied on two remote Jeju coasts, Jigwido and Ongpori. The early growth performanceof the first 60 days after settlement was expressed as: SL = 0.1664e0.0579x (r2 = 0.924), where x stands for daysafter settlement and SL for shell length. The early spats sized 1 mm in average shell length became 4.1 ± 0.8 mmafter a month of nursery culture, thereafter grew to 13.0 ± 1.9, 23.1 ± 3.1, 30.3 ± 4.3, and 33.6 ± 5.2 mm forconsecutive 4 months in Jigwido coastal area. Mean growth gains (mean daily gains in parenthesis) were 76.7 ±7.7 (165.6 μm), 73.3 ± 7.3 (154.0 μm), 69.4 ± 8.4 (140.0 μm), and 68.7 ± 8.5 mm (137.4 μm), in depths of 5, 10,15, and 20 m, respectively. The growth rate was significantly decreased as cultured in deeper place (p < 0.05). Asculturing density was higher, growth performance of the scallop was decreased in both locations. Overall, in ourpreliminary study, the growth performance of scallop in Korean waters was not better than that in Japan, but itseems to be worth doing further study for successful introduction to Korean waters

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