Length–weight relationships of four fish species from Fatala estuary, Guinea, West Africa

This study provides length-weight relationships (LWR) that had not yet been reported for four fish species belonging to different families: Chrysichthys johnelsi Daget, 1959, Cynoglossus senegalensis (Kaup, 1858), Citharichthys stampflii (Steindachner, 1894) and Pseudotolithus typus, Bleeker, 1863. Data were collected in the Fatala estuary, republic of Guinea, each month between January 1993 March 1994, using alternately a purse seine net (length 250 m, height 20 14 mm side mesh) gillnets (side mesh sizes 10, 12.5, 15, 15.5, 20, 22.5, 25, 30, 35 40 mm). For specimen, fork or total length weight measured with precision 0.1 cm g respectively. A wider size range, compared range available FishBase, was obtained typus. The present also new maximum stampflii. determination coefficient (r²) body ranged 0.958 0.989 senegalensis. allometric b varied from 2.9552 (Chrysichthys johnelsi) 3.7288 (Citharichthys stampflii). value LWRs should assist fisheries scientists managers complement their further studies population parameters improve management decisions estuary and, more widely, West Africa.