A study of Bay Scallop (Argopecten irradians) Aquaculture in the Cheonsu Bay, West Sea, Korea
In Joon Hwang, Seo Kyung In, Soo Hyun Lee, Hyun Jeong Lim and Young Baek Hur
Aquaculture Industry Division, West Sea Fisheries Research Institute, NIFS, Incheon 22383, Korea Aquaculture Industry Division, East Sea Fisheries Research Institute, NIFS, Gangneung, Korea
We conducted a preliminary study on the bay scallop Argopecten irradians aquaculture in two different culturing sites (Changri and Tangae) of Cheonsu bay, West Sea in 2017. Water temperature during the culturing period (July to December) was 6.2-27.9℃. Water quality and nutrients (NH4-N, NO2-N, NO3-N, Total nitrogen, PO4-P, SiO2-Si) from surface water were satisfactory for bay scallop culture. During the growing period (July to November), dominant phytoplankton species were Cryptomonas sp. in both sites. Biomass of phytoplankton was the highest in July, but it was low in other period of both sites. Final survival rates of cultured scallop in Changri and Tangae were 79.58 ± 4.00% and 74.86 ± 2.66%, respectively. In Changri, mean daily growth rates (DGR) for shell length and total weights were 0.176 mm/day and 0.085 g/day, respectively. In Tangae, mean DGR for shell length and total weights were 0.248 mm/day and 0.160 g/day, respectively. These results suggest that Cheonsu bay is suitable for the aquaculture of bay scallop and growth was more satisfactory in outer site than inner site of this bay.
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