Perca fluviatilis

From Baker et al. (2019): “Perca fluviatilis is said to compete for food and space with the Murray cod (Maccullochella peelii peelii) and golden perch (Macquaria ambigua) (Lintermans et al. 1990).\"

From Froese and Pauly (2019a): \"A predatory species, juveniles feed on zooplankton, bottom invertebrate fauna and other perch fry while adults feed on both invertebrates and fish, mainly stickle-backs, perch, roach and minnows. The dietary preferences have created fears among conservationists who believed this species adversely affects stocks of native fishes including Murray cod, Macquarie perch, pygmy perches and rainbow fishes.”

From Bain (2011): “The European perch, Perca fluviatilis, became highly abundant in Bosten Lake [China] and supported a major fishery. Its dramatic increase coincided with the disappearance of the datou fish [Aspiorhynchus laticeps], and the perch then declined in size to have no fishery value (Xie, 1999).”; From Baker et al. (2019): \"In New Zealand, Perca fluviatilis suppressed populations of a native fish, the common bully, by direct predation (Closs et al. 2003). Physical removal of Perca fluviatilis from ponds resulted in an increased abundance of the common bully.”

\"P. fluviatilis is implicated in population reduction and extirpations of many native species, some of which themselves are recreational resources.\"; \"Caused the disappearance of endemic fish Asipiorhynchus laticeps in Lake Bositen, Xinjiang. This species was introduced from the Ertrix River basin in the north Xiangjiang Autonomous Region to the Bosten Lake in the south Xiangjiang autonomous regions for fish resource enhancement purpose. It became a dominate fish in the new environment.\"; \"For example, predation of Perca fluviatilis on Galexiella munda (mud minnow) and Cherax cainii (smooth marron) has led to extinction and reduction in recruitment respectively in Western Australia (NSW DPI, 2012); extinction of endemic Asipiorhynchus laticeps in China (Bartley, 2006)\"; \"When the European perch, Perca fluviatilis, was introduced into Lake Bositen in south Xinjiang, the fish proliferated and predated on other fishes, resulting in disppearance of Asipiorhynchus laticeps which was endemic to the lake.\"