Urban water quality - all data - 1985–2015

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Creative Commons Attribution 3.0 New Zealand

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2293
38
Added
24 Apr 2017

This dataset was first added to MfE Data Service on 24 Apr 2017.

Urban water quality indicators include heavy metals, nutrients, and E.coli. The concentrations of these indicators are compared to the proportion of urban land cover in catchments.

Heavy metals have the ability to accumulate in sediments, shellfish, and other aquatic organisms. Metals can reach toxic levels in organisms making them unsafe to consume and can be toxic to aquatic life. Nutrients can cause excessive algal growth and E.coli has the ability to make people sick while they are swimming if concentrations are high enough. Rivers with poor water quality are rarely suitable for recreation and provide poor habitats for aquatic species.

File contains data related to each sampling occasion by site for each water quality indicator in Auckland, Wellington, and Christchurch over the period 1985–15.

Table ID 53600
Data type Table
Row count 58661
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

He Pātaka Wai Ora Report_datasheet raw water quality

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Creative Commons Attribution 3.0 New Zealand

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2297
5
Added
25 Apr 2017

This dataset was first added to MfE Data Service on 25 Apr 2017.

Table ID 53611
Data type Table
Row count 796
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Trends in groundwater quality, 2005–2014

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Creative Commons Attribution 3.0 New Zealand

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2296
21
Added
25 Apr 2017

This dataset was first added to MfE Data Service on 25 Apr 2017.

Groundwater quality indicators include E.coli, nitrate-nitrogen, ammoniacal nitrogen, and dissolved reactive phosphorus. Also included is data on pesticides, iron, manganese, electrical conductivity, and total dissolved solids. Information on sampling protocol, equipment, and method is provided.

Nitrogen occurs naturally in groundwater, but usually at very low concentrations. Agricultural and urban land use can add more nitrate-nitrogen to groundwater. If used for drinking water, high levels of nitrogen in groundwater can affect human health and the quality of surrounding rivers and lakes. Ammoniacal nitrogen is undesirable if groundwater is used for drinking, and elevated levels of nitrate and ammoniacal nitrogen can be toxic to fish and other animals. Surplus phosphorus drains (leaches) into groundwater as dissolved reactive phosphorus. It can also be present naturally from interactions between groundwater and rocks. Too much phosphorus can lead to excessive plant and algae growth where groundwater flows into surface water. E.coli in fresh water can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces. The pathogens can cause illness for anyone who ingests them.

This dataset relates to trends in four groundwater quality indicators: nitrate nitrogen, ammoniacal nitrogen, dissolved reactive phosphorus, and E.coli. throughout New Zealand over the 10-year period 2005–2014.

Table ID 53604
Data type Table
Row count 1683
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Performance of assessed fish stock in relation to the hard limit (2009–15)

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Creative Commons Attribution 3.0 New Zealand

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2267
23
Added
14 Oct 2016

This dataset was first added to MfE Data Service on 14 Oct 2016.

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 a fishery should be considered), and an overfishing threshold (where the rate of extraction is higher than the rate of replenishment).

Table ID 53469
Data type Table
Row count 14
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Bird species on public conservation land, estimated diversity 2013–16

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Creative Commons Attribution 4.0 International

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2247
16
Added
16 Apr 2018

This dataset was first added to MfE Data Service on 16 Apr 2018.

The status of our bird communities is an important indicator of the condition of our ecosystems. Many indigenous birds play key ecological roles, including dispersing seeds and pollinating flowers. In some situations, exotic bird species (not indigenous to New Zealand) can partially fulfil these roles. A reduction in the distribution and/or decline in numbers for common and widespread species can equate to large losses of individuals and ecosystem integrity. By measuring the composition of bird communities across public conservation land (forest and non–forest sites) we can monitor how they change over time.

This measure reports on the predicted richness (diversity) of bird species on public conservation land, by monitoring site, 2013–2016.

Table ID 95338
Data type Table
Row count 1056
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Estimated fur seal captures in trawl and longline fisheries by fishery type (1999–2013)

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Creative Commons Attribution 3.0 New Zealand

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2269
8
Added
14 Oct 2016

This dataset was first added to MfE Data Service on 14 Oct 2016.

Sea lions and fur seals are the protected species most directly affected by fisheries in New Zealand waters, along with seabirds and dolphins. Trawling poses a risk to both species. Fur seals can also be captured by other fishing gear, including long lines. Estimating the bycatch of sea lions and fur seals indicates the pressures they face from current fishing practices.
The New Zealand fur seal Arctocephalus forsteri is classified as not threatened with extinction and its population appears to be increasing and extending back into its historical range (where they were commonly found) (Baker et al, 2010). They have a wide distribution, but are more common in the southern parts of New Zealand.
The Fisheries Act 1996 designates the New Zealand fur seal as protected and requires mitigation measures to reduce bycatch (Ministry for Primary Industries, 2014).

Table ID 53470
Data type Table
Row count 32
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Conservation status of marine mammals

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Creative Commons Attribution 3.0 New Zealand

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2240
23
Added
19 Oct 2016

This dataset was first added to MfE Data Service on 19 Oct 2016.

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 species (near the top of the food chain) and can thrive only if their ecosystems are healthy. A decreasing population can indicate that the ecosystem is degrading. Marine mammals played an important part in New Zealand history; in the past whales and seals were hunted in great numbers. Now we have a rapidly-growing whale- and dolphin-watching industry.

Table ID 53481
Data type Table
Row count 29
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Urban stream water quality - trends - 2008–15

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Creative Commons Attribution 3.0 New Zealand

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2215
22
Added
24 Apr 2017

This dataset was first added to MfE Data Service on 24 Apr 2017.

Urban water quality indicators include heavy metals, nutrients, and E.coli. The concentrations of these indicators are compared to the proportion of urban land cover in catchments.

Zinc and copper are heavy metals that can accumulate in sediments, shellfish, and other aquatic organisms. Metals can reach toxic levels in organisms making them unsafe to eat and can be toxic to aquatic life. Nitrogen and phosphorus are nutrients that can cause excessive algal growth. Ammonical nitrogen and nitrate-nitrogen can be toxic to aquatic life if concentrations in streams are high enough. E.coli is an indicator of disease-causing organisms, which may affect human health and recreational values in streams.

File contains trend analyses by site for water quality indicators in Auckland, Wellington, and Christchurch over the period 2008–15.

Table ID 53598
Data type Table
Row count 217
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Bird species on public conservation land, estimated occupancy 2013–16

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Creative Commons Attribution 4.0 International

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2205
7
Added
16 Apr 2018

This dataset was first added to MfE Data Service on 16 Apr 2018.

The status of our bird communities is an important indicator of the condition of our ecosystems. Many indigenous birds play key ecological roles, including dispersing seeds and pollinating flowers. In some situations, exotic bird species (not indigenous to New Zealand) can partially fulfill these roles. A reduction in the distribution and/or decline in numbers for common and widespread species can equate to large losses of individuals and ecosystem integrity. By measuring the composition of bird communities across public conservation land (forest and non-forest sites) we can monitor how they change over time.

This measure reports on the occupancy of indigenous and exotic bird species on public conservation land, by wood cover, averaged over surveys from 2013 to 2016.

Table ID 95339
Data type Table
Row count 156
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Cultural Health Index scores for waterways, 2005–16

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Creative Commons Attribution 3.0 New Zealand

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2221
21
Added
25 Apr 2017

This dataset was first added to MfE Data Service on 25 Apr 2017.

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 how the state of a site on a waterway affects the mauri, the ability for tangata whenua to feed the hapu and iwi and the overall water quality for the site. These are all important indicators of the cultural health of a waterway, and are also a consideration for other cultural and recreational activities like karakia, cleansing, swimming and wading.

Table ID 53617
Data type Table
Row count 42
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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