Description: Indicators of ecosystem health are monitored nationwide to assess the state and trend in estuarine and coastal water quality. The indicators are: chlorophyll-a, visual clarity, dissolved oxygen, dissolved reactive phosphorus, Enterococci, faecal coliforms, ammoniacal nitrogen, nitrate-nitrite nitrogen, suspended solids, total phosphorus, total nitrogen and turbidity.
Water quality state is the median value in milligrams per litre for 2013–2017. Water quality trend is the change in each variable (2008–2017) and stated as ‘improving’, ‘worsening’ or ‘indeterminate’.
Copyright Text: Source: Local and regional councils. Managed by Stats NZ and Ministry for the Environment.
Description: Total nitrogen, nitrate-nitrogen and ammoniacal nitrogen levels were monitored at selected river sites. The median values from 2013 to 2017 were calculated to measure the state of river water quality. River water quality trends were calculated for 10 years (2008–2017), 20 years (1998–2017) and 28 years (1990–2017) and categorised as very likely improving, likely improving, indeterminate, likely worsening and very likely worsening. River water quality monitoring data was collected by NIWA and regional councils using consistent time periods and comparable methods.
Copyright Text: NIWA, managed by Stats NZ and Ministry for the Environment.
Description: Concentrations of lead, cadmium, copper and zinc in coastal and estuarine sediment are provided from across 13 regions from 2015 to 2018. The metal concentration is reported as mg/kg dry weight and compared with the default guideline values (DGV) and upper guideline values (UGV) for toxicants in sediment, and classed as above DGV, below DGV and not applicable.
Copyright Text: Source: Local and regional councils. Managed by Stats NZ and Ministry for the Environment.
Name: Observed and predicted streambed sedimentation
Display Field:
Type: Group Layer
Geometry Type: null
Description: The percentage cover of fine streambed sediment was recorded for 10,026 sites from 1990 to 2011 (1970–2011 in Fiordland). These values were used to model the streambed sedimentation across New Zealand. Fine sediment is inorganic particles <2mm (mud, silt and sand).
Copyright Text: Source: Manaaki Whenua - Landcare Research, managed by Stats NZ and Ministry for the Environment
Description: River flow in 485 rivers was measured over 5 years and used to model flows for every river. Mean river flow (over 5 years or more) is expresses in cumecs.
Copyright Text: Source: NIWA and regional councils. Managed by Stats NZ and Ministry for the Environment
Description: Includes all river and stream catchments that are classified as vulnerable (showing signs of stress but have not yet reached a tipping point). See Freshwater Improvement Fund for more information. https://data.mfe.govt.nz/layer/53523-vulnerable-catchments/.
Copyright Text: Source and management: Ministry for the Environment
Description: Includes all river and stream catchments that drain to the sea in the River Environment Classification database.
Copyright Text: Source: [Freshwater Ecosystems of New Zealand] https://teamwork.niwa.co.nz/pages/viewpage.action?pageId=10420794, Ministry for the Environment. Managed by Ministry for the Environment
Description: This database classifies land into 35 categories using satellite imagery and is used to monitor the natural environment at regional and national scales. Previous versions record land cover changes over time. See New Zealand Land Cover Database (version 5.0) https://lris.scinfo.org.nz/layer/104400-lcdb-v50-land-cover-database-version-50-mainland-new-zealand/
Copyright Text: Source and management: Manaaki Whenua - Landcare Research
Description: The risk of severe land mass-movement erosion where there is no protective woody vegetation. The risk is categorised into 5 classes: high landslide risk (delivery to stream), high landslide risk (non-delivery to stream), moderate earthflow risk, severe earthflow risk and gully risk.
Copyright Text: Source: Manaaki Whenua - Landcare Research, managed by Stats NZ and Ministry for the Environment
Description: The proportion of native vegetation cover in river and stream catchments, derived from satellite imagery. Natural cover ranges from 0 to 1, where 1 has the highest proportion of native vegetation.
Copyright Text: Source: NIWA Leathwick et al. (2007), managed by DOC
Description: An assessment of human pressures on the ecological integrity of rivers and streams. The overall pressure index was calculated from individual pressures: clearance of native vegetation, imperviousness, stream nitrogen loads, mine and industrial discharges, upstream and downstream dam effects and the introduction of pest fish. The index ranges from 0 to 1, where 0 has the most severe pressure.
see Leathwick et al. (2007) for full calculation details.
Copyright Text: Source: NIWA Leathwick et al. (2007), managed by DOC
Description: Mangroves are mapped with the most recent data (from regional councils, DOC and other agencies). DOC is developing this dataset to provide a comprehensive spatial and temporal habitat layer for this species nationwide and information from other agencies is added as available.
Description: Seagrass (Zosteria muelleri) is mapped mapped with the most recent data (from regional councils, DOC and other agencies). DOC is developing this dataset to provide a comprehensive spatial and temporal habitat layer for this species nationwide and information from other agencies is added as available.
Description: Records of spawning sites are drawn from iNaturalist as submitted by the public and include historical and recent records. Although this dataset relies on public observations (that are moderated by a subject matter expert) the data may not be complete or accurate.
Description: This system classifies estuaries based on their climate, catchment characteristics, and ocean and river conditions. [See NIWA’s Coastal Explorer] for more information and references.https://www.niwa.co.nz/coasts-and-oceans/nz-coast/learn-about-coastal-environments/estuary-types
Description: Coastal hydrosystems is a collective term for coastal lakes and wetlands, lagoons, river, estuarine and marine environments. This resource uses a standard set of criteria to classify each hydrosystem based on its physical characteristics (geomorphology and environmental variables). [See A classification of New Zealand's coastal hydrosystems] for more information https://www.mfe.govt.nz/publications/marine/classification-of-new-zealands-coastal-hydrosystems
Copyright Text: Source: Ministry for the Environment
Description: Coastal hydrosystems describe coastal features that span a gradient from near coast freshwater lakes/wetlands (lacustrine/palustrine environments) to marine. The term 'coastal hydrosystem' avoids the common error of referring to all such features as estuaries, mislabelling the numerous types that are non-estuarine and have different behavioural characteristics and management sensitivities from any truly estuarine environment. It also encompasses the coastal systems that do not represent end-of-river environments (e.g., some pocket beaches and embayments) or are so large and complex as to be fed by several freshwater drainage features (rivers, streams, wetlands) but which are dominated by none (e.g., some harbours, fjords, sounds and coastal-lacustrine systems). It also incorporates the multiple aspects of each system, including beaches, spits, barriers, river mouths, wetlands, saltmarshes and other geomorphic, ecological and hydrological features. The New Zealand Coastal Hydrosystem classification (NZCH) is a classification of coastal hydrosystems within New Zealand including some offshore islands. The coastal hydrosystems classification is based on a hierarchical view of the abiotic components that comprise the environments of coastal hydrosystems. This classification presents detail at the geomorphic class level because this level is particularly important for coastal management and conservation needs at national and regional scales. The primary GIS is the point layer. Supporting files (attached) include: a CSV database of environmental variables; GIS polygon layer; and Google Earth (.kmz) point and polygon exports. The database, GIS and Google Earth files should be used in conjunction with the Classification of New Zealand's Coastal Hydrosystems report (Hume et al. 2016) (also attached) which documents a full description of the database, the calculation procedures and limitations to the variables. The spreadsheet comprises a database of 500 New Zealand coastal hydrosystems and their associated environmental variables developed for the report. The GIS point file comprises 500 New Zealand coastal hydrosystems and their associated environmental variables developed for the database. The environmental variables are mapped at 1:50,000 scale. NOTE: Within the point attribute file -9999 represents the environmental variables with no data as shown in the spreadsheet as a blank cell. Make sure to exclude these values from analyses. The polygon files comprise 420 New Zealand coastal hydrosystems depicting their general shape of the water body basin at high tide and upstream limit. The .kmz files are derived from the NZCH GIS point and polygon layers for use with Google Earth. The report provides a classification of coastal hydrosystems within New Zealand including some offshore islands. The coastal hydrosystems classification reconciles and clarifies coastal hydrosystem terminology and produces a hierarchy and classification of coastal wetland, riverine, estuarine and marine types. This report identifies and provides a list of environmental variables that describe the characteristics and properties of about 500 discrete coastal hydrosystems that can be used to provide national and regional statistics on coastal hydrosystems. An Identification Key is provided to guide the determination of the classes.
Copyright Text: T. Hume (Hume Consulting Ltd) P. Gerbeaux (Department of Conservation) D. Hart (University of Canterbury) H. Kettles (Department of Conservation) D. Neale (Department of Conservation)
Description: Coastal hydrosystems describe coastal features that span a gradient from near coast freshwater lakes/wetlands (lacustrine/palustrine environments) to marine. The term 'coastal hydrosystem' avoids the common error of referring to all such features as estuaries, mislabelling the numerous types that are non-estuarine and have different behavioural characteristics and management sensitivities from any truly estuarine environment. It also encompasses the coastal systems that do not represent end-of-river environments (e.g., some pocket beaches and embayments) or are so large and complex as to be fed by several freshwater drainage features (rivers, streams, wetlands) but which are dominated by none (e.g., some harbours, fjords, sounds and coastal-lacustrine systems). It also incorporates the multiple aspects of each system, including beaches, spits, barriers, river mouths, wetlands, saltmarshes and other geomorphic, ecological and hydrological features. The New Zealand Coastal Hydrosystem classification (NZCH) is a classification of coastal hydrosystems within New Zealand including some offshore islands. The coastal hydrosystems classification is based on a hierarchical view of the abiotic components that comprise the environments of coastal hydrosystems. This classification presents detail at the geomorphic class level because this level is particularly important for coastal management and conservation needs at national and regional scales. The primary GIS is the point layer. Supporting files (attached) include: a CSV database of environmental variables; GIS polygon layer; and Google Earth (.kmz) point and polygon exports. The database, GIS and Google Earth files should be used in conjunction with the Classification of New Zealand's Coastal Hydrosystems report (Hume et al. 2016) (also attached) which documents a full description of the database, the calculation procedures and limitations to the variables. The spreadsheet comprises a database of 500 New Zealand coastal hydrosystems and their associated environmental variables developed for the report. The GIS point file comprises 500 New Zealand coastal hydrosystems and their associated environmental variables developed for the database. The environmental variables are mapped at 1:50,000 scale. NOTE: Within the point attribute file -9999 represents the environmental variables with no data as shown in the spreadsheet as a blank cell. Make sure to exclude these values from analyses. The polygon files comprise 420 New Zealand coastal hydrosystems depicting their general shape of the water body basin at high tide and upstream limit. The .kmz files are derived from the NZCH GIS point and polygon layers for use with Google Earth. The report provides a classification of coastal hydrosystems within New Zealand including some offshore islands. The coastal hydrosystems classification reconciles and clarifies coastal hydrosystem terminology and produces a hierarchy and classification of coastal wetland, riverine, estuarine and marine types. This report identifies and provides a list of environmental variables that describe the characteristics and properties of about 500 discrete coastal hydrosystems that can be used to provide national and regional statistics on coastal hydrosystems. An Identification Key is provided to guide the determination of the classes.
Copyright Text: T. Hume (Hume Consulting Ltd) P. Gerbeaux (Department of Conservation) D. Hart (University of Canterbury) H. Kettles (Department of Conservation) D. Neale (Department of Conservation)
Description: This dataset maps marine habitats in the New Zealand territorial sea based on surrogates (including depth, substratum, exposure and biogenic habitats). [See Coastal marine habitats and marine protected areas in the New Zealand Territorial Sea: a broad scale gap analysis] for more information. https://www.doc.govt.nz/about-us/science-publications/conservation-publications/marine-and-coastal/marine-protected-areas/coastal-marine-habitats-and-marine-protected-areas-in-the-new-zealand-territorial-sea-a-broad-scale-gap-analysis/
Description: Wetlands are mapped at 1:50,000 to a minimum size of 0.5 hectares. A combination of satellite imagery and recent survey data was used to map 7 wetland classes: bog, fen, inland saline, marsh, pakihi/gumland, seepage and swamp.
Copyright Text: Source: Manaaki Whenua - Landcare Research. Managed by Stats NZ and Ministry for the Environment
Description: The extent of wetlands before human arrival is mapped at 1:50,000 to a minimum size of 0.5 hectares. The extent is predicted from the national fundamental soil layers (FSL) database, which is used to identify wetland soils from their drainage properties.
Copyright Text: Source: Manaaki Whenua - Landcare Research. Managed by Stats NZ and Ministry for the Environment
Description: This provides a polygon coastline and islands layer which is based on the Topo50 products. It is a combination of the following layers: - [NZ Coastlines (Topo 1:50k)](http://data.linz.govt.nz/layer/258-nz-coastlines-topo-150k/) - [NZ Island Polygons (Topo 1:50k)](http://data.linz.govt.nz/layer/288-nz-island-polygons-topo-150k/) - [NZ Auckland Is Island Polygons (Topo, 1:50k)](http://data.linz.govt.nz/layer/959-nz-auckland-is-island-polygons-topo-150k/) - [NZ Campbell Is / Motu Ihupuku Island Polygons (Topo, 1:50k)](http://data.linz.govt.nz/layer/932-nz-campbell-is-motu-ihupuku-island-polygons-topo-150k/) - [NZ Antipodes Is Island Polygons (Topo, 1:25k)](http://data.linz.govt.nz/layer/978-nz-antipodes-is-island-polygons-topo-125k/) - [NZ Kermadec Is Island Polygons (Topo, 1:25k)](http://data.linz.govt.nz/layer/908-nz-kermadec-is-island-polygons-topo-125k/) - [NZ Bounty Is Island Polygons (Topo, 1:25k)](http://data.linz.govt.nz/layer/992-nz-bounty-is-island-polygons-topo-125k/) - [NZ Snares Is / Tini Heke Island Polygons (Topo, 1:25k)](http://data.linz.govt.nz/layer/893-nz-snares-is-tini-heke-island-polygons-topo-125k/) - [NZ Chatham Is island polygons (Topo, 1:50k)](http://data.linz.govt.nz/layer/86-nz-chatham-is-island-polygons-topo-150k/) Islands from the NZ Island Polygons layer that lie within the NZ Coastline and Chatham Islands areas (i.e. islands in lakes, rivers and estuaries) have been removed. The GIS workflow to create the layer is: 1. NZ Coastlines were converted from a polyline to a polygon using a polyline to polygon tool. 2. The resulting coastal polygon was then used as an input into an erase tool and run against the NZ Island Polygon layer to remove all islands lying within the NZ Mainland and Stewart Island. 3. This was then merged with the NZ Chatham Is island polygons (Topo, 1:50k) that have had the islands within the main island polygon removed, NZ Auckland Is Island Polygons (Topo, 1:50k), NZ Campbell Is / Motu Ihupuku Island, NZ Antipodes Is Island Polygons (Topo, 1:25k), NZ Kermadec Is Island Polygons (Topo, 1:25k), NZ Bounty Is Island Polygons (Topo, 1:25k) and NZ Snares Is / Tini Heke Island Polygons (Topo, 1:25k) layers using a merge tool. 4. Lake Onoke from the NZ Lake Polygons (Topo 1:50k) layer and Te Whanga Lagoon from the NZ Chatham Is lagoon polygons (Topo, 1:50k) layer were then erased from the resultant polygon layer to include these two water bodies in the coastline definition. For more detailed description of each layer refer to the layer urls above.
Description: This dataset is compiled from hydrographic bathymetry datasets sourced from LINZ nautical charts at three scales: 1:22,000–1:90,000, 1:90,000–1:350,000 and 1:350,000–1:500,000.
The finest scale (1:22,000–1:90,000) was used first where it exists. Missing areas were filled with the 1:90,000–1:350,000 then the 1:350,000–1:500,000 datasets. Some gaps between the coastline and the bathymetry remained, so values from the 1:22,000–1:90,000 polygons were extrapolated into the 1:350,000–1:500,000 polygons where they touched the coastline.
Copyright Text: Source: Land Information New Zealand and DOC. Managed by DOC.
XMin: NaN
YMin: NaN
XMax: NaN
YMax: NaN
Spatial Reference: PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere_CntreNZ",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",160.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0]]
Description: DOC has 9 operations regions and 45 operations districts within them. The boundaries were implemented in February 2016 and replaced the previous services regions boundaries.
Copyright Text: Source and management: DOC
Default Visibility: false
MaxRecordCount: 0
Supported Query Formats: JSON, geoJSON, PBF
Min Scale: 0
Max Scale: 0
Supports Advanced Queries: false
Supports Statistics: false
Has Labels: false
Can Modify Layer: false
Can Scale Symbols: false
Use Standardized Queries: true
Supports Datum Transformation: true
Extent:
XMin: NaN
YMin: NaN
XMax: NaN
YMax: NaN
Spatial Reference: PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere_CntreNZ",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",160.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0]]