THE EFFECTS OF TRAY DENSITY AND CARE REGIMES ON GROWTH AND SURVIVAL RATE OF SNOUT OTTER CLAM oleh Cao Truong Giang, Tran The Muu, Tran Thi Thuy, Le Van Khoi, Nguyen Thi Bien Thuy, Nguyen Duc Tuan, Tran Thi Nguyet Minh, Dang Thi Lua, Cao Van Hanh, Hoang Nhat Son, Nguyen Thi Dieu Phuong, Nguyen Manh Cuong, Le Thi Linh, Vu Van In, Vu Van Sang, Thai Thanh Binh, Vu Cong Tam, Trinh Dinh Khuyen