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Marine pests in ports (2014)
Ministry for the EnvironmentMarine exotic species arrive in New Zealand waters on the hulls of international vessels (biofouling) or in discharged ballast waters. Some have little impact or cannot survive in New Zealand waters. Others are pests that can out-compete indigenous species and alter ecosystems. Marine pests could threaten our cultural and natural heritage, as well as...Created 2 February 2020 • Updated 3 March 2025 -
Predicted capture of 11 fish species, 1977–2015
Ministry for the EnvironmentFreshwater fish are an important component of freshwater ecosystems, have intrinsic biodiversity values and are a valued resource for Māori, recreational and commercial fishers. The presence of fish species can be affected by changes in catchment land cover and land use, in-stream habitat, fish passages (routes for moving up and down waterways), pests,...Created 2 February 2020 • Updated 3 March 2025 -
Total suspended particulates concentration in Auckland, 1965–2013
Ministry for the EnvironmentTotal suspended particulates (TSP) consist of all solid particles and liquid droplets up to 100 micrometres (μm) in diameter (ie when compared with PM10 and PM2.5, TSP is the equivalent of PM100). TSP 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...Created 2 February 2020 • Updated 3 March 2025 -
Benzene concentrations 2012–13
Ministry for the EnvironmentBenzene is a volatile organic compound. Motor vehicle use and home heating are the main sources of airborne benzene emissions. Natural sources include volcanoes and forest fires. Benzene can affect the nervous system and is associated with some forms of cancer. Benzene is emitted by human-made (motor vehicles, burning wood or coal for home heating, and...Created 2 February 2020 • Updated 3 March 2025 -
Estimated annual Salvin's albatross captures in trawl and longline fisheries...
Ministry for the EnvironmentAlong with sea lions, fur seals, and dolphins, seabirds are the protected species most directly affected by fisheries in New Zealand waters. Estimating seabird deaths from bycatch is one way of assessing the pressure some seabird species face from current fishing practices. This dataset relates to the "Bycatch of protected species: seabirds" measure on...Created 2 February 2020 • Updated 3 March 2025 -
Bycatch of protected species - Hector’s and Māui’s dolphin entanglements (1921–2008)
Ministry for the EnvironmentThe Hector’s and Māui’s dolphins are subspecies of the small dolphin Cephalorhynchus hectori. They are endemic to New Zealand (not found anywhere else). The Hector’s dolphin is classified as nationally endangered, while the Māui’s dolphin is nationally critical. Reporting incidental dolphin deaths from fishing helps us understand the pressures our...Created 2 February 2020 • Updated 3 March 2025 -
Nitrogen dioxide concentration at state highway sites 2007–13
Ministry for the EnvironmentNitrogen dioxide (NO2) is a gas. It can be emitted directly into the air but is most often formed when nitric oxide (NO) emissions react with other chemicals in the air. Nationally, road motor vehicles are the main human-made source of nitrogen oxides (NOx, the collective term for NO2 and NO). NO2 may cause respiratory infections and reduced lung...Created 2 February 2020 • Updated 3 March 2025 -
Recruitment of indigenous tree sp silver beech 2002–2014
Ministry for the Environment"The rates of establishment (recruitment) 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 recruitment of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of...Created 2 February 2020 • Updated 3 March 2025 -
Sentinel2 2017 Chatham Islands Footprints
Ministry for the EnvironmentNote: Metadata relates to the mosaicked imagery. This layer has been provided to enable users to explore coverage and capture dates of the imagery. To enquire about ordering the imagery, please e-mail lucas[at]mfe.govt.nz. This imagery is a 10m, ten-band multispectral, cloud-minimised mosaic of Sentinel 2A satellite tiles over Chatham Islands made from...Created 2 February 2020 • Updated 3 March 2025 -
Recruitment of indigenous tree sp Halls tōtara 2002–2014
Ministry for the Environment"The rates of establishment (recruitment) 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 recruitment of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of...Created 2 February 2020 • Updated 3 March 2025 -
Performance of assessed fish stock in relation to the soft limit (2009–15)
Ministry for the EnvironmentOur 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 -
Recruitment of indigenous tree sp putaputawēta 2002–2014
Ministry for the Environment"The rates of establishment (recruitment) 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 recruitment of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of...Created 2 February 2020 • Updated 3 March 2025 -
Estimated forest carbon stocks - Change in forest carbon stocks, 1990–2012
Ministry for the EnvironmentNew Zealand’s indigenous and exotic forests absorb and store carbon from the atmosphere through photosynthesis. As forests grow, the carbon stored in them increases. These carbon stocks help offset greenhouse gas emissions from sources such as agriculture, energy production, and transport. Column headings: type = vegetation type of forest vol_tC = volume...Created 2 February 2020 • Updated 3 March 2025 -
Recruitment of indigenous tree sp kāmahi 2002–2014
Ministry for the Environment"The rates of establishment (recruitment) 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 recruitment of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of...Created 2 February 2020 • Updated 3 March 2025 -
He Pātaka Wai Ora Report_datasheet raw water nutrients
Ministry for the EnvironmentThis dataset has no description
Created 2 February 2020 • Updated 3 March 2025 -
Estimated global production of major ozone-depleting substances (1986–2013)
Ministry for the EnvironmentOzone in the stratosphere is destroyed in a catalytic reaction with a range of chemical species (mainly CFCs) that are emitted through human activities. The emission of these ozone-depleting substances (ODSs) is closely related to the amount of the chemicals that are produced. The ozone layer absorbs most of the sun's harmful ultraviolet (UV) radiation....Created 2 February 2020 • Updated 3 March 2025 -
Recruitment of indigenous tree sp hūpiro 2002–2014
Ministry for the Environment"The rates of establishment (recruitment) 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 recruitment of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of...Created 2 February 2020 • Updated 3 March 2025 -
Cumulative occupancy of key non-indigenous species by port of first entry (2009–2015)
Ministry for the EnvironmentMarine non-indigenous (exotic) species arrive in New Zealand waters on the hulls of international vessels (biofouling) or in discharged ballast waters. Some have little impact or cannot survive in New Zealand waters; others have a negative impact on our native habitats and species and become pests. They can compete with, and prey on, indigenous species,...Created 2 February 2020 • Updated 3 March 2025 -
Carbon monoxide concentrations and exceedances 2005–2013
Ministry for the EnvironmentCarbon monoxide (CO) is a gas formed by incomplete combustion of fuels, in particular from road motor vehicles and burning wood and coal for home heating. It also occurs naturally, for example, from wild fires. CO can affect human health by interfering with the blood’s ability to carry oxygen and by aggravating heart conditions. Road motor vehicles are...Created 2 February 2020 • Updated 3 March 2025 -
Ozone hole (1979–2014)
Ministry for the EnvironmentOzone protects the Earth from harmful levels of UV radiation. The ozone hole is an area of reduced stratospheric ozone that forms over Antarctica each spring, due to ozone-depleting substance. Reporting on the state of the ozone hole provides important context for the state of ozone concentrations globally. This dataset relates to the "Ozone hole" measure...Created 2 February 2020 • Updated 3 March 2025
