Invasive species

NIWA experts work with partners on the design and implementation of  pest surveillance, including early detection and delimiting surveys for unwanted marine and freshwater organisms.

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    Submerged plants as bio-indicators

    Submerged plants have a number of advantages that favour their use as indicators of lake ecological condition.
    Invasive species

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    Freshwater pest species

    This is a user guide on non-native fish, reptile, invertebrate, algal and plant species that are recorded in New Zealand freshwaters.
    Invasive species