The Characteristics of Shrimp Caught by Trammel net in The Waters of Lontar, Banten

Abstract

Abstract Shrimp is one of the high commodities caught in Lontar waters. The Fishing gear used is trammel net. The type of trammel net based on slackness partition has been discussed in previous research. The aim of this study is to identify shrimp caught by trammel net, analyze the legal size of shrimp and analyze the relationship between length and weight of shrimp. The study was conducted in November and December 2018 in waters of Lontar, Banten. The trammel net used is divided into 3 types. The first trammel net is trammel net control (TK) which is not insulated and the distribution of slackness is only under the webbing. The second trammel net is divided into 2 parts (TN A) and the third is divided into 3 parts (TN B). The number of settings is 32 times. The result showed that there were two species of shrimp caught, namely white shrimp (Penaeus merguiensis) and mantis shrimp (Squilla mantis). The total catch of white shrimp is 478 shrimp (14 kg) and 235 shrimp of mantis (7 kg). The length of white shrimp caught in TK is 11-18 cm, TN A is 11-20 cm and TN B is 10-20 cm. The shrimp caught in TK have a size between 10-16 cm. In TN A and B, the size of shrimp caught is 10-23 cm. The total of white shrimp which has legal size is 420 shrimp (88%). The number of mantis shrimp has a smaller than white shrimp, which are 49 shrimp (21%) spread on three types of trammel net. The length and weight relationship between two species of shrimp are the same. The relationship is negative allometric.