Crabs (Portunus pelagicus) resource mapping Bangkalan Madura waters based (Walter-Hilbron non-equilibrium model)

Abstract

This study presents an overview of the condition of the crab (Portunus pelagicus) resources in the waters of Bangkalan Madura, as an export commodity its production relies on the catch, one of the locations of the catchment area is in the Fisheries Management Area 712 where this research was carried out. The frequency of fishing efforts continues to increase because of the high economic value, however, there is not much information about the condition of the resources. Descriptive research method with the aim of mapping crab resources based on the "Non-Equilibrium Walter-Hilbron Model". The results showed that the maximum catch production (CMSY) was 63,886.114 kg/year with standard Trammel net fishing gear, the intrinsic growth was 50.91%/year, the carrying capacity of the waters was 50195,336 Kg/year, the dominant species was (Portunus pelagicus), the optimal effort (Eopt) was 6363750 trips/year with a potential resource of 25097,668 kg/year. In conclusion, this research can be used as a basis for resource mapping as a follow-up to Minister of Marine Affairs and Fisheries Regulations Number 70/2016 concerning the Management Plan for Crab in the WPP.