Short communication: Length-weight relationship and condition factor of the nine fish species of bycatch from Northeast Brazilian Coast

Hugo Leandro Santos (Federal University of Sergipe)
Fabricio S. Santana (Graduate program of fishing engineer, Federal University of Sergipe, Campus São Cristovão, Brazil.)
Fernanda D.S. Gonçalves (Post Graduate Program of Development and Environment, Campus São Cristovão, Brazil.)
Matheus S. Deda (Graduate program of fishing engineer, Federal University of Sergipe, Campus São Cristovão, Brazil.)
Amanda S. Carvalho (Graduate program of Zootechnics, Federal University of Sergipe, Campus São Cristovão, Brazil.)
Peterson E.G. Paixão (Post Graduate Program of Health and Environment, Tiradentes University, Campus Farolândia, Aracaju, Brazil.)
Higo A. Abe (Post Graduate Program of Animal Science, Federal University of Pará, Campus Belém, Brazil.)

Aceh Journal of Animal Science
Vol 7, No 1 (2022): February 2022

The length-weight relationship (LWR) and relative condition factor (Kn) are essential biometric tools in fishery studies. They provide information about the fish's growth, condition, and suitability in its habitat. LWR values were estimated for nine fish (Chloroscombrus chrysurus, Larimus breviceps, Nebris microps, Odontognathus mucronatus, Paralonchurus brasiliensis, Pellona harroweri, Ointmentsys corvinaeformis, Selene setapinnis, Stellifer rastrifer) captured as bycatch in shrimp trawling from commercial trawls, were collected monthly, between March and November 2019. The coefficient b ranged from 2.7547 to 3.4100 and the Fulton and relative condition factor ranged from 0.39 to 1.38 and 1.00 to 1.02, respectively. The current study would provide baseline data about LWR and the relative condition factor for these species captured in northeast Brazilian coast. These data are valuable for establishing a monitoring and management system for this fish species