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  • Performance of assessed fish stock in relation to the overfishing threshold (2009–15)

    Ministry for the Environment
    Our fish stocks are affected by commercial, customary, and recreational fishing, and environmental pressures (eg ocean temperature, acidity, and productivity). The Ministry for Primary Industries uses three performance measures to assess influences on fish stocks: a soft limit (below which a rebuilding plan is required), a hard limit (below which closing...
    Created 2 February 2020 • Updated 3 March 2025

  • New Zealand's greenhouse gas emissions (1990–2013)

    Ministry for the Environment
    Our greenhouse gas (GHG) emissions are small compared with those of other developed nations, but we have committed to being part of the global response to climate change. New Zealand's greenhouse gas inventory is an annual report on all of the country’s human-induced GHG emissions and removals of GHG emissions. The inventory is produced as part of our...
    Created 2 February 2020 • Updated 3 March 2025

  • PM10 composed of sea salt and soil

    Ministry for the Environment
    We measure the annual concentrations and proportions of natural and anthropogenic particulate matter 10 micrometres or less in diameter (PM10). PM10 in the air comprises solid particles and liquid droplets from both natural and human-made sources. PM10 occurs naturally, for example, as sea salt, dust (airborne soil), or pollen. Airborne soil particles,...
    Created 2 February 2020 • Updated 3 March 2025

  • Particulate matter exceedences 2006–2013

    Ministry for the Environment
    "Particulate matter 10 micrometres or less in diameter (PM10) in the air comprises solid particles and liquid droplets from both natural and human-made sources. The main sources are burning wood or coal for home heating, and sea spray. PM10 is of particular concern because it is found in high concentrations in some areas. It can damage health and is...
    Created 1 February 2024 • Updated 3 March 2025

  • River Environment Classification Watershed Waikato (2010) (DEPRECATED)

    Ministry for the Environment
    The New Zealand River Environment Classification (REC) organises information about the physical characteristics of New Zealand's rivers. Individual river sections are mapped according to physical factors such as climate, source of flow for the river water, topography, and geology, and catchment land cover eg, forest, pasture or urban. Sections of river...
    Created 1 September 2021 • Updated 3 March 2025

  • Mortality of indigenous tree sp mountain horopito 2002–2014

    Ministry for the Environment
    "The rates of death (mortality) of indigenous tree species vary across New Zealand. Changes in the state of the environment (such as from browsing pests, large-scale weather events, or climate change) may change the rates of mortality of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of mortality...
    Created 2 February 2020 • Updated 3 March 2025

  • Mortality of indigenous tree sp kāpuka 2002–2014

    Ministry for the Environment
    "The rates of death (mortality) of indigenous tree species vary across New Zealand. Changes in the state of the environment (such as from browsing pests, large-scale weather events, or climate change) may change the rates of mortality of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of mortality...
    Created 2 February 2020 • Updated 3 March 2025

  • Particulate matter concentrations 2006–2013

    Ministry for the Environment
    "Particulate matter 10 micrometres or less in diameter (PM10) in the air comprises solid particles and liquid droplets from both natural and human-made sources. PM10 can be emitted from the combustion of fuels, such as wood and coal (eg from home heating and industry), and petrol and diesel (from vehicles). Natural PM10 includes sea salt, dust, pollen,...
    Created 1 February 2024 • Updated 3 March 2025

  • Marine Environment Classification EEZ 5 Classes (2010)

    Ministry for the Environment
    The Marine Environment Classification (MEC), a GIS-based environmental classification of the marine environment of the New Zealand region, is an ecosystem-based spatial framework designed for marine management purposes. Several spatially-explicit data layers describing the physical environment define the MEC. A physically-based classification was chosen...
    Created 2 February 2020 • Updated 3 March 2025

  • Mortality of indigenous tree sp tree fern 2002–2014

    Ministry for the Environment
    "The rates of death (mortality) of indigenous tree species vary across New Zealand. Changes in the state of the environment (such as from browsing pests, large-scale weather events, or climate change) may change the rates of mortality of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of mortality...
    Created 2 February 2020 • Updated 3 March 2025

  • Coastal water quality_all results by site

    Ministry for the Environment

    This dataset has no description

    Created 2 February 2020 • Updated 3 March 2025

  • Cultural Health Index scores for waterways, 2005–16

    Ministry for the Environment
    Cultural Health Index scores for a waterway is a combination measure of historical cultural use and access, mahinga kai assessment, and water quality assessment from a cultural perspective of a site on a waterway. The Cultural Health Index scores compile this information into a classification system to provide an overall grading of the state of a site and...
    Created 2 February 2020 • Updated 3 March 2025

  • Oceanic sea surface temperature anomaly

    Ministry for the Environment
    The ocean waters surrounding New Zealand vary in temperature from north to south. They interact with heat and moisture in the atmosphere and affect our weather. Sea surface temperature changes with climate drivers such as El Niño, and will change with climate change. The sea surface temperature anomaly provides an indication of the heat change in the...
    Created 2 February 2020 • Updated 3 March 2025

  • Conservation status of marine mammals

    Ministry for the Environment
    New Zealand has a diverse range of marine mammal species and subspecies, including whales, dolphins, seals, and sea lions. Marine mammals are indicator species for the state of our marine environment. The conservation status of a species relates to its risk of extinction. Many of these species are endemic (only found in) to New Zealand. They are apex...
    Created 2 February 2020 • Updated 3 March 2025

  • Freshwater pests: Great pond snail

    Ministry for the Environment
    "Freshwater plant and animal pests can have significant negative impacts on ecosystem health by reducing indigenous biodiversity through predation and competition, and destabilising aquatic habitats. Freshwater plant pests can cause economic losses through blocking water intakes for hydroelectricity generation, impeded drainage or irrigation. In addition,...
    Created 2 February 2020 • Updated 3 March 2025

  • Natural river flow statistics, predicted for all river reaches

    Ministry for the Environment
    River flow is the quantity of water passing a point over a certain time. Each river or stream has its own natural flow characteristics, such as peak flows following rain or high spring flows from snow melt. Overall, this affects how much water is available for irrigation, drinking water, hydroelectricity generation, and recreational activities. River...
    Created 2 February 2020 • Updated 3 March 2025

  • Vehicle Kilometres Travelled

    Ministry for the Environment
    Source: Ministry of Transport
    Created 2 February 2020 • Updated 3 March 2025

  • BOMEC_15_Class_region

    Ministry for the Environment
    The 15 class Benthic-Optimised Marine Environment Classification (BOMEC). The BOMEC divides the benthic environment into ecosystem types. These are grouped into three inshore groups, three continental shelf groups, and nine deeper-water groups. Each group represents areas with similar environmental variables, such as depth, temperature, salinity, and...
    Created 2 February 2020 • Updated 3 March 2025

  • Emissions from burning wood or coal for home heating 2006 and 2013

    Ministry for the Environment
    In 2013, 37 percent of homes burned wood and 4 percent burned coal for heating. Burning wood or coal for home heating emits a range of air pollutants. It is the main human-made source of particulate matter and a significant contributor of carbon monoxide. Exposure to these pollutants can damage health, with effects ranging from respiratory irritation to...
    Created 2 February 2020 • Updated 3 March 2025

  • DoC marine mammal sanctuaries (2016 report)

    Ministry for the Environment
    New Zealand’s four million km2 marine environment is diverse, with a range of coastal habitats and offshore seabed environments. There are also many marine species unique to New Zealand. Marine protected areas conserve or manage some of these unique habitats and species, while a range of other tools also provide marine protection. We report on the area...
    Created 2 February 2020 • Updated 3 March 2025