Our growing goldfish problem University of Toronto Scarborough News

Our growing goldfish problem University of Toronto Scarborough News

Invasive goldfish proliferating in Saskatoon storm ponds

Why do fish kill themselves? - Quora

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B.C. conservation group warns of goldfish invasion in Kelowna pond

Meet the 'Most Wanted' invaders of Lake Simcoe - Newmarket News

In The Wild, Goldfish Turn From Pet To Pest The New York Times

Giant goldfish in the Great Lakes: Study

Supersized Goldfish Could Become Superinvaders