Length-weight relationship of Metapenaeus ensis in Aceh utara waters, lhokseumawe city, Indonesia

Eastern coast Aceh province has a rich of diversity in the marine crustacean sector. One of them is Metapenaeus ensis shrimp. Metapenaeus ensis shrimp is one of the shrimp that has important economic value in the waters of Lhokseumawe city, Indonesia. Excessive use of fishery resources can threaten the preservation of these Shrimp Metapenaeus ensis resources. Therefore, the purpose of this study was to determine the lenght-weight relationship of shrimp caught in the waters of Lhokseumawe city. This research is expected to be able to add information on the existence of Metapenaeus ensis shrimp and sustainable resource management later for farmers. The research method used is a simple random withdrawal method by taking shrimp samples randomly from a basket of fishermen's catch in one sail. Shrimp samples taken 10% of the total catch of fishermen then measured length and weighed. Sampling was carried out in July 2019 at TPI Pusong Lama, Lhokseumawe City. Carapace length and weight of shrimps both male and female ranging from 22 mm to 64 mm and weighing around 2.69 grams to 35.48 grams. Growth patterns of Shrimp Metapenaeus ensis both male and female are allometric negative. Comparison of male and female genital ratio obtained 1: 0.41.