Length frequency distribution, growth, and condition factor of the endemic cyprinid fish Poropuntius tawarensis, in Lake Laut Tawar, Central Aceh, Indonesia

The Poropuntius tawarensis fish is an endemic fish of the family Cyprinidae found in Laut Tawar Lake, and has been listed on the Red List. This study aims to reveal the frequency of length distribution, growth patterns and condition factors of the fish in the lake as basic information for conservation. The study was conducted from January to May 2022 in the Laut Tawar Lake of Central Aceh. Sampling was conducted at four sampling sites based on representative activities on the lake. The location of the study was determined based on differences in environmental characteristics, namely Station 1 (Teluk One-One), Station 2 (Bewang), Station 3 (Gegarang) and Station 4 (Kebayakan). The results showed that the fish at Bewang Station was relatively higher in terms of the frequency of the length distribution. The growth pattern of male and female fish was negative allometric (b<3).The condition factor of the three stations was relatively the same ranging from 0.94 to 1.39, but it was different from the one-one station with a condition factor of 0.01.The value of the condition factor that can be obtained had insignificant differences every month, namely 1.12±0.38 (January), 1.00±0.49 (February), 0.93±0.55 (March), 0.85±0.59 (April), and 1.17±0.32 (May).