Analysis of the level of environmental friendliness of fishing gear gill nets in Java Sea waters, Bangkalan Regency, East Java, Indonesia

Abstract

Fish is one of the resources that can recover (renewable resources) but if the use and management are carried out irrationally in the long term these fish resources are feared to be extinct, therefore it is necessary to manage fish resources responsibly and sustainably. Gill nets or in the world of international fisheries better known as "gillnet" are fishing devices in the form of rectangular mesh sheets with the same size mesh and equipped with buoys, ballasts, upper ropes and with or without bottom ropes to block the swimming direction of fish, so that the target fish will be entangled in the net or bounced on body parts dragnet. The method used in this study is a descriptive method, namely direct observation in the field and interviews with fishermen and secondary data followed by determining the sample population and random sampling. The purpose of this study is to analyze variability, selectivity and determine the level of environmental friendliness of folding bubu type fishing gear in Java Sea Waters, Bangkalan Regency. The results of the study obtained variability and selectivity of gill net catches with the main catch (main catch) is crab (Portunus pelagicus) as much as 118 kg or 76.4% of the total catch and bycatch (by catch) is crab (Scylla sp.)as much as 7.8 kg or 5.1%, Gulama Fish (Johnius trachycephalus) as much as 10.5 kg or 6.8%, Tongue Fish (Cynoglossus arel) as much as 10 kg or 6.5% and Manyung Fish (Arius thalassinus) as much as 8 kg or 5.2% of the total catch while the catch is wasted (discard)) none. Thelevel of environmental friendliness of crab net type fishing gear obtained an assessment score of 26.8 which shows that this type of fishing gear is classified as Environmentally Friendly fishing gear.