Several species of trout were introduced to Australia and New Zealand by amateur fishing enthusiasts in the 19th century, effectively displacing and endangering several upland native fish species.
Beberapa spesies ikan diperkenalkan ke Australia dan Selandia Baru oleh penggemar memancing amatir pada abad ke-19, secara efektif menggusur dan membahayakan beberapa spesies ikan asli dataran tinggi.