Impacts www.nationalgeographic.com Enormous pigeon-eating catfish wreaking havoc on Europe’s ecosystems The continent’s largest freshwater fish, native to Eastern Europe, is an invasive species that threatens native fish already in decline.
Impacts www.nationalgeographic.com Brazil Amazon fires threaten river habitat of thousands of fish species The fires burning through the Brazilian Amazon are a threat to the fish that rely on forest flooding to survive, raising fears the fish will be lost.
Impacts www.bayjournal.com Biologists fear catfish spread after last year’s record deluge Decades after introduction, the species is a boon for some anglers, but worries about impact on other species remain.
