“…The high abundance of P. reticulata can be attributed to the reproductive strategies assumed by the species, as internal fertilization and development (Bisazza, Novarini, & Pilastro, 1996). These characteristics of the family Poecilidae increase the offspring viability, since it is protected of environmental oscillations and predators, providing better survival conditions (Mendonça & Andreata, 2001;Cunico, Ferreira, Agostinho, Beaumord &, Fernandes, 2012 Species of Poecilia genus are considered tolerant, and usually present high abundance in impacted environments (Araújo, Peixoto, Pinto, & Teixeira, 2009). One of the adaptive feature Poecilia species presents is the consumption of a variety of food items, such as algae (Lawal, Edokpayi, & Osibona, 2012), detritus (Oliveira & Bennemann, 2005), organic matter and insect fragments (Rolla, Esteves, & Ávila-Da-Silva, 2009), which may represent an increase in fitness for the species, since it can rely on a great number of alimentary resources.…”