Ocean acidification, New Zealand Ocean Acidification Observing Network, state, 2015 - 2021

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Creative Commons Attribution 4.0 International

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247
1
Added
18 Aug 2022

This dataset was first added to MfE Data Service on 18 Aug 2022.

Adapted by Ministry for the Environment and Stats NZ to provide for environmental reporting transparency. Dataset used to develop the "Ocean acidification" indicator (available at  www.stats.govt.nz/indicators/ocean-acidification).

This data set measures the pH at selected coastal sites via the New Zealand Ocean Acidification Observing Network (NZOA-ON) from 2015 to 2021.

Ocean acidification describes the long-term decrease in the pH of our oceans and coastal waters. This indicator measures:

  • pH at selected coastal sites (New Zealand Ocean Acidification Observing Network, NZOA-ON) from 2015 to 2021.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

Table ID 110171
Data type Table
Row count 15588
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Ocean acidification, Munida, state 1998 - 2020

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Creative Commons Attribution 4.0 International

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272
0
Added
18 Aug 2022

This dataset was first added to MfE Data Service on 18 Aug 2022.

Adapted by Ministry for the Environment and Stats NZ to provide for environmental reporting transparency. Dataset used to develop the "Ocean acidification" indicator (available at  www.stats.govt.nz/indicators/ocean-acidification).

This data set measures the change in pH in subantarctic surface waters at a station east of Otago from 1998 to 2020.

Ocean acidification describes the long-term decrease in the pH of our oceans and coastal waters. This indicator measures:

  • change in pH, acidity and pCO2 (a measure of dissolved carbon dioxide) in New Zealand’s subantarctic surface waters (Munida Transect) from 1998 to 2020.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

Table ID 110170
Data type Table
Row count 1088
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Wetland area, 1996 - 2018

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

186
1
Added
11 Aug 2022

This dataset was first added to MfE Data Service on 11 Aug 2022.

Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "Wetland area" indicator (available at www.stats.govt.nz/indicators/wetland-area).

This dataset measures change in wetland area in New Zealand from 1996 to 2018. We report on net change in wetland area for New Zealand and by region. When a wetland is lost or gained, we also show how the underlying landcover might have changed as this can provide insights into what is causing the loss or gain in wetlands.

Wetlands are taonga, supporting high levels of biodiversity, and contribute vital ecological functions. They provide habitat and breeding grounds for taonga species including indigenous invertebrates, plants, fish (for example, kōkopu and tuna (eels)), and bird species (for example, mātātā (fernbird)), many of which live only in wetlands. Wetlands act as ‘kidneys’ and giant sponges – they clean the water of excess nutrients and sediment, control flood water and pollutants, and act as carbon sinks (removing carbon dioxide from the atmosphere). Wetlands have strong cultural, economic, and spiritual importance for Māori. They are a key source of mātauranga (knowledge), material and resources for mahinga kai (traditional food resources), rongoā (traditional Māori medicine), raranga (weaving), and whakairo (carving).

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at environment.govt.nz/publications/environment-aotea....

Table ID 109678
Data type Table
Row count 211672
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

River water quality: Macroinvertebrate community index, flow adjusted trends, 1991 - 2020

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

153
0
Added
11 Aug 2022

This dataset was first added to MfE Data Service on 11 Aug 2022.

Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: macroinvertebrate community index" indicator (available at www.stats.govt.nz/indicators/river-water-quality-m...).

Benthic macroinvertebrates are small animals without backbones (for example, insects and worms). They live on and under submerged logs, rocks, and aquatic plants on the beds of rivers and streams during some part of their life cycle. Macroinvertebrates play a central role in stream ecosystems by feeding on periphyton (algae), macrophytes (aquatic plants), dead leaves and wood, or on each other. In turn, they are an important food source for fish and birds.

The macroinvertebrate community index (MCI) is used as an indicator of water quality and overall stream health. It is one of five parameters that provide an overview of New Zealand’s River water quality and how it is changing over time. This data shows:

  • trends in median MCI scores for the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available atenvironment.govt.nz/publications/environment-aotea... .

Table ID 109671
Data type Table
Row count 7234
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Extinction threat to indigenous species: freshwater, land, and marine

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

179
0
Added
11 Aug 2022

This dataset was first added to MfE Data Service on 11 Aug 2022.

Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the indicators: "Extinction threat to indigenous freshwater species", "Extinction threat to indigenous land species", and "Extinction threat to indigenous marine species" (available atwww.stats.govt.nz/indicators/extinction-threat-to-... , www.stats.govt.nz/indicators/extinction-threat-to-..., www.stats.govt.nz/indicators/extinction-threat-to-...).

We report on the extinction threat to indigenous, resident, living species that have been assessed by expert panels under the ++New Zealand Threat Classification System (NZTCS)++.

Many of New Zealand’s indigenous freshwater, land, and marine species are endemic – found nowhere else in the world – and are our national taonga (treasure). New Zealand species make a significant contribution to global biodiversity, which is important for ecosystem processes and resilience, culture, and recreation. Indigenous taonga species (species of cultural significance) have particular importance to Māori, whose mātauranga (knowledge systems), tikanga (cultural practice), and mahinga kai (traditional food resources) are dependent on the wellbeing of indigenous species. Understanding the status of indigenous species provides vital information for New Zealand conservation and kaitiaki decision-making.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at environment.govt.nz/publications/environment-aotea....

Table ID 109670
Data type Table
Row count 11960
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

River water quality: Macroinvertebrate community index, trends, 1991 - 2020

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Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

178
0
Added
11 Aug 2022

This dataset was first added to MfE Data Service on 11 Aug 2022.

Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: macroinvertebrate community index" indicator (available at www.stats.govt.nz/indicators/river-water-quality-m...).

Benthic macroinvertebrates are small animals without backbones (for example, insects and worms). They live on and under submerged logs, rocks, and aquatic plants on the beds of rivers and streams during some part of their life cycle. Macroinvertebrates play a central role in stream ecosystems by feeding on periphyton (algae), macrophytes (aquatic plants), dead leaves and wood, or on each other. In turn, they are an important food source for fish and birds.

The macroinvertebrate community index (MCI) is used as an indicator of water quality and overall stream health. It is one of five parameters that provide an overview of New Zealand’s River water quality and how it is changing over time. This data shows

  • trends in median MCI scores for the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at environment.govt.nz/publications/environment-aotea....

Table ID 109669
Data type Table
Row count 7376
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Annual glacier ice volumes, 1978 - 2020

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Creative Commons Attribution 4.0 International

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187
1
Added
11 Aug 2022

This dataset was first added to MfE Data Service on 11 Aug 2022.

Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "Annual glacier ice volumes" indicator (available at www.stats.govt.nz/indicators/annual-glacier-ice-vo...).

This dataset measures the total volume of ice in glaciers greater than one hectare in area throughout New Zealand between 1978 and 2020.

Glaciers are iconic indicators of climate change (Mackintosh et al., 2017). Glacier fluctuations are amongst the clearest signals of climate change because glaciers are highly sensitive indicators of the earth’s surface energy balance (Chinn, 1996). The amount of loss seen in two recent extreme mass-loss events for New Zealand glaciers was more likely to have occurred due to anthropogenic climate change (Vargo et al., 2020).

Glaciers provide an important natural resource that supports power generation, primary production, and water resources. Glaciers act as a reservoir of water and are vital for plants and animals dependent on downstream rivers and lakes, particularly throughout drier seasons. Glaciers regulate downstream water temperature, which is important for many aquatic species, including Taonga species. Changes to ice storage and melting can affect ecological and hydropower resources downstream, as well as important cultural values and tourism. Melting glaciers also add to coastal sea level rise, further contributing to the impacts of climate change.

Climate change is causing summer snowlines to rise and glaciers to retreat. A recent survey of all glacier ice in New Zealand found that the North Island glaciers had declined in area by 25 percent since 1988. For glaciers situated close to the limits of where they can exist, like those on Mt Ruapehu (the only North Island glacierised site today), even moderate warming scenarios predicted for the coming decades may lead to their extinction (Eaves & Brook, 2020). Mt Ruapehu is in the Tongariro National Park, which has been awarded UNESCO World Heritage status for its cultural and natural values. Ruapehu’s glaciers serve as a cultural reference point for local iwi. For example, the Whangaehu River, which has been recognised as indivisible and a living being, emerges from the Whangaehu Glacier on the east flank of Mt Ruapehu. The loss of glaciers will have a negative impact on culture and historical kōrero.

Between 1978 and 2020 the total volume of glacial ice in New Zealand decreased by 35 percent and the rate of annual loss increased.

The total volume of ice in glaciers in New Zealand decreased from 53.3km3 in 1978 to 34.6km3 in 2020.

The highest annual ice loss occurred in 2018 with 2.7km3 lost. The second highest annual ice loss occurred in both 2019 and 2011, with 2.5km3 lost.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at environment.govt.nz/publications/environment-aotea....

References

Chinn, T. J. (1996). New Zealand glacier responses to climate change of the past century. New Zealand Journal of Geology and Geophysics, 39(3), 415–428. ++doi.org/10.1080/00288306.1996.9514723++

Eaves, S. R., & Brook, M. S. (2020). Glaciers and glaciation of North Island, New Zealand. New Zealand Journal of Geology and Geophysics, 64(1), 1–20. ++doi.org/10.1080/00288306.2020.1811354++

Mackintosh, A. N., Anderson, B. M., Lorrey, A. M., Renwick, J. A., Frei, P., & Dean, S. M. (2017). Regional cooling caused recent New Zealand glacier advances in a period of global warming. Nature Communications, 8(1). ++doi.org/10.1038/ncomms14202++

Vargo, L. J., Anderson, B. M., Dadić, R., Horgan, H. J., Mackintosh, A. N., King, A. D., & Lorrey, A. M. (2020). Anthropogenic warming forces extreme annual glacier mass loss. Nature Climate Change, 10(9), 856–861. ++doi.org/10.1038/s41558-020-0849-2++

Table ID 109668
Data type Table
Row count 43
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

River water quality: Macroinvertebrate community index, state, 2016 - 2020

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Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

163
0
Added
11 Aug 2022

This dataset was first added to MfE Data Service on 11 Aug 2022.

Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: macroinvertebrate community index" indicator (available at www.stats.govt.nz/indicators/river-water-quality-m...).

Benthic macroinvertebrates are small animals without backbones (for example, insects and worms). They live on and under submerged logs, rocks, and aquatic plants on the beds of rivers and streams during some part of their life cycle. Macroinvertebrates play a central role in stream ecosystems by feeding on periphyton (algae), macrophytes (aquatic plants), dead leaves and wood, or on each other. In turn, they are an important food source for fish and birds.

The macroinvertebrate community index (MCI) is used as an indicator of water quality and overall stream health. It is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time. This data shows:

  • MCI scores as measured median values at monitored sites for the period 2016–2020
  • how these compare to the macroinvertebrates National Objectives Framework (NOF) bands related to ecosystem health.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at environment.govt.nz/publications/environment-aotea....

Table ID 109666
Data type Table
Row count 10760
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

River water quality: Clarity and turbidity, state, 2016 - 2020

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

133
0
Added
11 Aug 2022

This dataset was first added to MfE Data Service on 11 Aug 2022.

Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: clarity and turbidity" indicator (available at www.stats.govt.nz/indicators/river-water-quality-c...).

This dataset contains two parameters of water quality based on measurements made at monitored river sites:

  • Clarity
  • Turbidity

Clarity and turbidity in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time.

This dataset includes:

  • clarity and turbidity as measured median values at monitored sites for New Zealand’s river length for the period 2016–2020
  • how these values compare to the default guideline values in the Australian and New Zealand guidelines for fresh and marine water quality (ANZG, 2018), which indicates the risk of environmental impairment
  • measured visual clarity median values compared with the National Objectives Framework (NOF) bands related to ecosystem health (MfE, 2020)

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

Summary report available at environment.govt.nz/publications/environment-aotea....

Table ID 109665
Data type Table
Row count 15864
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

River water quality: Escherichia coli, flow adjusted trends, 1991 - 2020

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

149
0
Added
11 Aug 2022

This dataset was first added to MfE Data Service on 11 Aug 2022.

Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: Escherichia coli" indicator (available at www.stats.govt.nz/indicators/river-water-quality-e...).

This dataset contains one parameter of water quality based on measurements made at monitored river sites:

  • Escherichia coli

Escherichia coli in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time.

This dataset includes:

  • adjusted trends in concentrations of E. coli based on measurements made at monitoring sites during the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

Summary report available at environment.govt.nz/publications/environment-aotea....

Table ID 109664
Data type Table
Row count 7484
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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