Biogeographical affinities of fish associated to the shrimp trawl fishery in the Gulf of Tehuantepec, Mexic

18 pages, 2 figures, 2 tables[EN] Fish by-catch of the Gulf of Tehuantepec shrimp fishery is mainly composed of several species that are discarded in their majority. Fish by-catch species composition, distribution and biogeographical affinities were analyzed through 15 cruises carried on the continental shelf at a depth of 12 to 70 m during 2003, 2004, 2005 and 2013. Fish by-catch was represented by 58 families, 129 genera and 242 species. The families Haemulidae, Sciaenidae, Paralichthyidae, Gerreidae and Carangidae accounted for >70% of the catch. Haemulopsis axillaris, Syacium ovale, Selene peruviana, Diapterus peruvianus, Larimus acclivins and Stellifer erycimba were the most frequent species at