Diet composition of abundant fish species in the shallow waters of the Todos os Santos Bay, Bahia, Brazil

Coastal habitats have great ecological importance with estuarine environments providing feeding sites for many fish species, especially during juvenile life stages. This study investigates the diet composition and trophic guild organization of common abundant ichthyofauna in shallow areas Todos os Santos Bay (TSB), Bahia, Brazil, their relationships environmental parameters. Six sampling campaigns were carried out zones (infralittoral) Paraguaçu River estuary which encompasses inner outer (marine exposure) reaches TSB. The stomach contents 1231 individuals belonging to species examined. A total 32 food items identified into four guilds: detritivores, zoobenthivores I, II, zooplanktivores. relationship between guilds parameters showed that II zooplanktivores had a positive salinity pH, explaining 86% data variability, though only variable was significant. provides basic information about TSB guilds. In addition, demonstrates waters across all broadly similar diets, comprising are usually associated bottom waters.