Weight-length, length-length relationships and form factor of three flatfish species from the Bay of Bengal, Bangladesh

Biometrics such as weight-length relationships (WLRs), length-length (LLRs), well form factor (a3.0) were investigated for three flatfish species, Cynoglossus lingua, arel, and Brachirus pan which captured using seines gill nets between September 2021 March 2022 from the Bay of Bengal, Bangladesh. The lengths measured to adjacent 0.1 cm accuracy with a digital caliper weights 0.01 g balance each individual. WLRs accurately adjusted all species (r2 > 0.9500). had lowest b value 2.9543, whereas C. arel highest 3.2924 amongst species. For fish, LLRs also highly significant 0.9600, p < 0.01). estimated values 0.0023 B. pan, 0.0026 0.0027 lingua. New maximum total have been recorded. Since there are no data these in Bangladesh; information supplied here expands depth knowledge