Introduction of non-native freshwater fish can certainly be bad - Vitule, Jean Ricardo Simões; Freire, Carolina Arruda; Simberloff, Daniel (Fish and fisheries (Oxford, England), 2009)
Keywords: Aquaculture; biodiversity; carp; catfish; Conservation; Criticism; Ecological effects; Ecology; economic valuation; economic value; Fish; Fresh water; Freshwater fish; freshwater fish introductions; Hybridization; Introduced species; Lates niloticus; Mollusks; non-native fish; Nonnative species; Parasites; Pathogens; Precautionary principle; risk assessment