Introduced Fish

New Zealand has 22 species of introduced fish compared to the 39 native species. Many of the fish introduced into New Zealand are not a problem but a small few are causing serious damage to native freshwater ecosystems and native fish. It is important that you do not release these fish into any streams or lakes. 

Introduced Fish in the Auckland Region

• Mosquito fish (Gambusia affinis)
• Perch (Perca fluviatilis)
• European (“koi”) carp (Cyprinus carpio)
• Goldfish (Carassius auratus)
• Rudd (Scardinius erythrophthalmus)  

To learn why invasive fish are bad click here.