Kajian selektivitas lunta (cast net) sebagai alat tangkap ramah lingkungan di perairan umum daratan

Abstract

This study aims to determine: (1) the total size of the length and weight of catch ; (2) Position of catch; (3) The dominant size of lunta selection; (4) Lunta selectivity on types of catches; (5) Pocket dimensions formed and correlation with total length; (6) The maximum length of the middle pocket slice arc; (7) The highest and lowest selection values. Research location in Hulu Sungai Selatan Regency. Data analysis uses experimental fishing, simulation, selectivity values. The results showed that the total length ranged from 8.6 cm - 32.5 cm and the weight of fish ranged from 8 grams - 260 grams (mesh size =3,2 cm), and the total length ranged from 8.9 cm - 28.5 cm and the weight of fish ranges from 10 grams - 195 grams (mesh size = 4.3 cm). The position of catch on the lunta is gilled, entangled,and pocketed (mesh size=3.2 cm); entangled and pocketed (mesh size=4,3 cm). The dominant selected fish size is 9.0 cm - 9.9 cm (mesh size = 3.2 cm); size 13 cm - 13.6 cm (mesh size = 4.3 cm). The most dominant type of fish is Three spot gourami (mesh size = 3.2 cm); and Siamese gourami, (mesh size = 4.3 cm). Value of the correlation coefficient (r) on the lunta, both are = 0, meaning there is no linear relationship between the total length of the fish and the height of the pocket. The maximum length of the middle pocket slice arc is lunta mesh size 3.2 cm and 4.3 cm is 38 cm and 39 cm. The highest selection value for lunta mesh size = 3.2 cm is 0.9998 and the lowest is 0.3851, while the selection value of lunta mesh size = 4.3 cm is the highest 0.992 and the lowest is 0.017.