吉利慈鯛(Tilapia zillii)成魚被認為是無所不吃的草食動物，往往會降低種植密度，改變原生植物的組成，威脅到許多依賴這種植物提供覓食、保護或產卵的本地水生生物，(GSMFC, 2005; Spataru, 1978)。
經濟 /民生: Tilapia zillii has had a beneficial socio-economic impact on this location and has created a small recreational fishery (FishBase, 2008).
United States (USA)
改變自然底棲生物群落: Tilapia zillii often reduce the amount of vegetative cover in a body of water which is used for spawning or protection from predation of golden shiner, eastern mosquitofish and green sunfish (FishBase, 2008).
California (United States (USA))
改變自然底棲生物群落: Tilapia zillii have been linked to the decline in desert pupfish in the Salton sea (Costa-Pierce, 2003).
Florida (USA) (United States (USA))
其他: There was no recorded impact for this location, only a risk of modification of natural benthic communities (Taylor, 1986).
Hawaii (United States (USA))
Idaho (United States (USA))
Nevada (United States (USA))
North Carolina (United States (USA))
改變自然底棲生物群落: The introduction of Tilapia zillii into Hyco Reservoir, North Carolina resulted in the elimination of all aquatic macrophytes within 2 years after introduction, coinciding with declines in population of the golden shiner (Notemigonus crysoleucas), the eastern mosquitofish (Gambusia holbrooki), and the green sunfish (Lepomis cyanellus) (Crutchfield, 1995).
Texas (United States (USA))