Comunidade da Ictiofauna no baixo rio Bonito no estado de Goiás – Brasil

Abstract

The Amazon basin and considered the most important in the volume of water as the number of species of fish, freshwater fish fauna is considered the most diversified each of our entire planet with approximately 3,500 species of fish . This es - all aimed through the fish fauna of the Lower beautiful river community , present the richness, diversity , frequency and similarity. The study began in April 2013 and January 2014 , performing quarterly sampling . For the study we used the following methodology , gill nets , seines , cast nets , sieves , angling and interview with riparian . The results indicated an abundance of 292 copies distributed in 04 orders , 12 families , 25 genera and 30 species , dur-ing the study species were the most abundant fish species Hypostomus cf . Ancis - Troides ( N = 39 ) which was responsible for 13:36 % of the total sample , and Astyanax altiparanae ( N = 24 ) , Galeocharax knerii ( N = 21 ) , Hoplias malabaricus ( N = 17 ) , and 05 species were cataloged rare , so the following species considered rare , Cetopsis candiru , Hydrolycus Scomberoides Leporinus obtusidens , Triportheus angulatus , Zungaro zungaro both with only one individual of each species . No species was considered endangered according to IBAMA 2004. Study shows that beautiful river in their riparian areas are well depleted and missing in some places, so now it has an impact on the fish fauna in the region before the economic reality of agriculture in study area.