PREVALENSI DAN INTENSITAS EKTOPARASIT PADA BENIH UDANG VANAME (Litopenaeus vannamei) DI TAMBAK DAN HATCHERY = PREVALENCE AND INTENSITY OF EKTOPARASITE ON PACIFIC WHITE SHRIMP (Litopenaeus vannamei) SEEDS FROM POND AND HATCHERY - TONY HIDAYAT, 141411131148 (2018)