Biological and Fisheries Aspects of Black Tiger Shrimp (Penaeus monodon Fabricius, 1798) in East Aceh Waters, Indonesia

The black tiger shrimp (Penaeus monodon) belongs to the Penaeidae family and is known for its economic importance. This species was caught using a trammel net in the East Aceh waters, where it is commonly found. This research aimed to discover the biological and fisheries aspects of the black tiger shrimp to provide foundational knowledge for its management. Data were collected monthly from September 2019 to November 2021 and biological data on carapace length (CL), weight, sex, and maturity stages were recorded. Fisheries data on landing catch and effort were also obtained. Common methods in fisheries science were performed to analyse the biological and fisheries data. The average carapace length and weight of females were greater than males, about 10 % and 24 %, respectively. The size at catches fluctuated month by month but tended to be greater from August to September, both in females and males. The sex ratio was unequal, and the growth pattern was negative allometric. The spawning season peaks between November and December. The black tiger shrimp was caught before it reached maturity size (Lc < Lm). In addition, there was a 40 % decrease in the abundance index between 2019 and 2021, and November marks the peak of the fishing landings. To promote sustainability, we recommend implementing a seasonal fishing closure during peak spawning in December.