Oreochromis mossambicus

\"Where O. mossambicus has been introduced outside its native range in southeastern Africa, numerous impacts have been documented on native fish and macrophytes.\"; “Mozambique tilapia (Oreochromis mossambicus) in the Amaravathy [India] have resulted in chages [sic] in the fish assemblage.”; “Mozambique tilapia (Oreochromis mossambicus) compete with the vulnerable silverside fish charal de la caldera (see Chirostoma bartoni in IUCN Red List of Threatened Species) that is endemic to La Alberca crater-lake [Alcocer et al. 2000].”; “Compete with small indigenous fish and gradually occupy their habitats [in Bangladesh] [Barua et al. 2001; Islam et al. 2003].”; “Considered invasive [in Malaysia], their numbers growing rapidly and often displacing native species particularly in rivers and lakes [Chong et al. 2010].”; “In Lake Chichincanab, introduced O. mossambicus competed strongly for habitat with an endemic cyprinodontid, threatening extinction (Fuselier, 2001), and was the dominant species (Schmitter-Soto and Caro, 1997).”

“Juveniles [of Oreochromis mossambicus] have been documented to feed on other fish (de Moor et al. 1986).\"; “The species [Oreochromis mossambicus] has been reported elsewhere to kill aquatic macrophytes while feeding on periphyton.\"

From Russell et al. (2012): “[…] Oreochromis mossambicus was directly or indirectly responsible for the disappearance of native species in Venezuela (Pérez et al. 2006a). In Central America, O. mossambicus and other tilapia species have been implicated in the decline of native cichlid populations in Lake Nicaragua, probably as a result of competitive displacement (McKaye et al. 1995) and their presence has been related to damage to indigenous fauna in Florida and Columbia (Philippart and Ruwet 1982). The introduction of O. mossambicus into Laguna Chichancanab in Mexico negatively impacted on a species flock of endemic pupfish (Cyprinodon spp.) (Fuselier 2001) by competitively excluding them from optimal habitats, resulting in declines in the abundance in four out of the five flock members.\"; “Mozambique tilapia (Oreochromis mossambicus) compete with the threatened native Bahama pupfish (Cyprinodon laciniatus) resulting in declining abundance of these fish (Barton, 1999).”; Tilapia also have been considered a major factor in the decline of the desert pupfish (Cyprinodon macularius) in the Salton Sea area (Courtenay and Robins, 1989; Swift et al. 1993).”; “Mozambique tilapia (Oreochromis mossambicus) compete with the native Cyprinodon species for habitat, resulting in declining abundance of these fish [Fuselier 2001].”; “Has competed aggressively for food with Mugil cephalus leading to its decrease in population [Randall 1987].”

“The introduction of two tilapia species (Oreochromis mossambicus and Sarotherodon occidentalis) in 1955, followed by that of the largemouth bass (Micropterus salmoides) in 1960, has led to a decrease in numbers of galaxias (Galaxias neocaledonicus). These introduced species preyed on the different stages of G. neocaledonicus (Keith 2002).\"