Length-weight relationships and condition factors of the Groe Fish Barbodes binotatus (Pisces: Cyprintlae) in Nagan River, Aceh Province, Indonesia

The groe fish Barbodes binotatus is one of the commercial freshwater fish occurred in Nagan River, Aceh Province, Indonesia. To date, information on the growth pattern and condition factor of this species were not available. Hence, the objective of the present study was to examine the growth pattern and condition factors of the groe fish B. binotatus in Nagan River, Nagan Raya District, Aceh Province, Indonesia. The sampling was conducted for 12 months from January 2016 to December 2016. The sampling locations were determined based on the information from local fishermen. The Linear Allometric Model (LAM), Fulton's and Relative Weight conditions factors were utilized to analyse the length-weight relationships and condition factors of the groe fish. A total of 409 fish samples were collected during the study. The results showed that the highest coefficient of b was recorded in October, where the b value was 5.19 with the average b value was 2.91 indicates an isometric growth pattern. The average Fulton's condition factor (K) was 2.41 and the average Relative weight (Wr) condition factor was 100.52. It is concluded that fish had an isometric growth pattern and based on K and Wr value, the results indicate that the waters are still in good condition and supports the life of fish. Furthermore, the availability of food sources, low competitors, and low predators indicate that the aquatic environment is in a stable condition.