“…Global databases of introductions indicate relatively few negative impacts for many freshwater fish species particularly relative to the economic value of their production (Gozlan, 2008). Different authors have, however, reached different conclusions about the extent of undesirable impacts on ecosystems relative to the benefits of aquaculture and fisheries, particularly those based tilapia (Leveque, 2002;Canonico et al, 2005;Gozlan, 2008;Brummett and Ponzoni, 2009;De Silva et al, 2009;Vitule et al, 2009). Since 2002 tilapia (Cichlidae: primarily of genera Oreochromis, Tilapia, and Serranochromis.…”