Freshwater

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

Rachel Crawford and Paul Franklin inspecting a fish passage on the Waikato River.

Freshwater and Estuaries Update

A seasonal review and outlook for New Zealand's water resources, and an update on NIWA's freshwater research

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    Tools

    The tools available for restoring native fish to streams depend on what is causing fish to decline.
    Fisheries

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    Identifying the problem

    Identifying the factors causing fish numbers to drop will allow you to determine which restoration tools you need to employ.
    Fisheries

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    Chemical contamination and energy

    What are the potential sources of chemical contamination from energy generation activities?

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    Riparian vegetation and energy

    How do energy generation activities potentially impact riparian vegetation around a waterway?

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    Water take and energy

    How do energy generation activities potentially influence water flows?

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    Instream barriers and energy

    How do instream barriers as a result of energy generation activities potentially influence water resources?

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    Infectious substances, meat and dairy

    What are the sources of infectious substances from the meat and dairy processing industry?

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    Infectious substances and urbanisation

     

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    Infectious substances and agriculture

    What are the sources of infectious substances from agriculture?

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    Water resources, meat and dairy

    How may the activities of the meat and dairy processing industry impact water resources?

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    Chemical contamination, meat and dairy

    What are the potential sources of chemical contamination from meat and dairy processing facilities?

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    Nutrients, meat and dairy

    What are the potential sources of nutrients from the meat and dairy processing industry?
    Freshwater quality