New Zealand’s freshwater ecosystems face many threats – pollution, deforestation, loss of habitat, changes in land use, sedimentation, nutrient enrichment, and the impact of invasive freshwater animals and plants.
Invasive freshwater pests reduce water quality, compete against and feed on native freshwater fish, invertebrates, and plants, contribute to erosion and increase nutrient levels in New Zealand’s waterways.
It can be hard to detect these species until they are already an established problem.
Help from the community really helps us in our fight for freshwater biodiversity. If you spot a freshwater pest, or have concerns you have seen one, here is what you can do:
Contact MPI 0800 80 99 66 or DOC 0800 DOC HOT (0800 36 24 68) with information such as:
Cleaning your gear after you've been in and around waterways can help prevent the spread of freshwater pests. Use the 'Check, Clean, Dry' method to make sure you reduce the chances of spreading freshwater pests.
We work with other organisations, run a research programme and follow guidelines and legislation.
Learn about animal and plant species that are considered freshwater pests and what you can do to help get rid of them.