Freshwater

We provide public information on river, lake, and groundwater conditions across New Zealand including freshwater quantity and quality.

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    Fish Finder

    Click on a family, species or common name to learn more about that fish and its distribution. Please note: our fish finder database is undergoing maintenance and updating, so some species information may not be available through these links at present.
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    Glossary

    Some of the terms used in this atlas may be unfamiliar to amateur biologists, and so I provide this glossary.
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    Key to freshwater fish families in New Zealand

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    Frequently asked questions about WAIORA

    Frequently asked questions about WAIORA
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    Water Allocation Impacts on River Attributes (WAIORA)

    WAIORA is a decision-support system designed to provide guidance on whether a water abstraction or discharge could have adverse impacts on a number of environmental parameters.
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    LakeSPI outputs

    LakeSPI (pronounced ‘Lake Spy’) provides a quick and cost-effective tool for monitoring lake condition.
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    Quick-guides to freshwater flora and fauna

    These guides are designed for rapid identification of freshwater flora and fauna, usually to the generic level, for use in biomonitoring.
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    Weed management

    Find out how to manage aquatic weeds.
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    Species guide

    Aquatic plants have different lifeforms and habitats.
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    Education

    Learn more about aquatic plants.
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    Publications

    Publications related to this section.
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    Outreach

    Aquatic plant overview, weed management options & freshwater plant ID guides.