Fishery management and biology of the scallop Chlamys nobilis (Reeve) in southern Vietnam
1997
Tuan, Vo Si (Institute of Oceanography, Nhatrang (Vietnam))
Scallop Chlamys nobilis is abundant in the coastal waters of Binhthuan province (south central Vietnam). Favourable substrata consist of coarse sand, gravel, dead corals, or pebbles at a depth of 7-20 m. Water temperature in this area is relatively low because of upwelling in the summer and cooler water currents in the winter. Main breeding seasons of the scallop are July-August and January-February when the temperature is lowest. The growth parameters of von Bertalanffy equation are L = 93,3 mm and K = 1,43. Scallop production changes considerably among years. It is suggested that this fluctuation depends mainly on the environmental conditions of primarily rainfall, wind regime, and water temperature. A management model is presented.
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