Growth, Mortality, Exploitation Rate, and Recruitment of Blood Clam (Anadara granosa) in the Rangsang Barat Waters, Riau Province

Growth, mortality, exploitation rate, and recruitment of Anadara granosa cockle in Rangsang Barat coastal waters were studied from July to October 2019. The objective this research was study growth. mortality. rate A cockle. Sampling done monthly at three main stations. collected plot 1 x m2 on quadrat transect. result showed that the asymptotic length (L∞) P. acutidens 30.45 mm. annual growth coefficient (K) 0.83 per year. total mortality (Z) 4.46 natural mortalities (M) 1.60 year fishing (F) 2.86 (E = 0.64) blood clams has begun threaten sustainability. occurred every month. peaks (13.83 %) dan August (13.08 %).