Karakteristik Morfometrik Dan Faktor Kondisi Kerang Totok (Polymesoda Erosa) Di Hutan Mangrove Desa Nusajaya Kecamatan Waslei Selatan Kabupaten Halmahera Timur Maluku Utara

Clam, Polymesoda erosa is species that live in sandy and muddy substrata of mangrove ecosystem. The aims of this study are to look at the relationship of the shell length and width,body thiekness, body weight and organ weight based on class size to determine the growth. The study also was designed to reveal the conditional factor based on the clam class size. The samples were collected during the day at lowest tide in January 2014. The total is 153 individuals of Polymesoda erosa clam were collected during the study. The result shows thare is a strong positive relationship between body lenght and body weight as shown within the regression analysis with intercept (a) = 0,470779, regression coefficient (b) = 0,69095 and correlation coefficient (r) = 0,406357. Based on the r value, it can be concluded that there is strong relationship regarding the length and weight increment as much as 40,63 %