Cooling water of power plant creates "hot spots" for tropical fishes and parasites.

摘要: Thermally altered water bodies can function as "hot spots" where non-native species are establishing self-sustaining populations beyond their tropical and subtropical native regions. Whereas many fish have been found in these habitats, the introduction of parasites often remains undetected. Here, n = 77 convict cichlids (Amatitlania nigrofasciata) were sampled by electro-fishing at two sites from a thermally stream Germany examined for parasite fauna feeding ecology. Stomach content analysis suggests an opportunistic strategy A. nigrofasciata: while plant material dominated diet warm inlet (∼30 °C), relative contributions insects, plants, crustaceans balanced 3 km downstream (∼27 °C). The most abundant was nematode Camallanus cotti with P = 11.90 % P = 80.00 further downstream, respectively. Additionally, larvae Anguillicoloides crassus one specimen Bothriocephalus acheilognathi isolated. nigrofasciata also highly infected Acanthocephalus anguillae, which could be linked to high numbers parasite's intermediate host Asellus aquaticus. aim this study highlight risk consequences release establishment ornamental spread non-indigenous metazoan using cichlid model species. Furthermore, into adjacent communities needs addressed future first evidence found.