Name: Estuarine

Display Field: HAB_LEG

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Estuaries and coastal wetlands are formed where rivers meet the sea. These unique and highly productive ecosystems host a variety of terrestrial, freshwater, estuarine, and marine species, which vary by location and local conditions. One of the main characteristics is a gradient of salinity as freshwater and seawater meet forming brackish waters influenced by tidal flow where specialized salt tolerant plants can grow forming mangrove and/or salt marsh habitats as well as mud flats. These areas provide important structure and resources for diverse assemblages of species as well as key services in trapping sediment, nutrients, and pollutants and protecting coastlines. Coastal development has dramatically reduced the scale of New Zealand’s estuaries and invasive species have also contributed to their degradation. This map shows over 6000 estuary distributions defined by the National Institute for Water and Atmospheric Research (NIWA) in the New Zealand Estuary Environment Classification (Hume et al. 2007), with geospatial mapping refined by the Department of Conservation (DOC). Limitations include any changes in estuary distribution since 2007. This layer has some areas of overlap with the ‘Wetlands’ layer.<div><br /></div><div>This layer has some areas of overlap with the ‘Wetlands’ layer. Updated and more detailed regional data sets may be available and should be examined for fine scale assessments.</div><div><br /></div><div><div>Hume, T. M., T. Snelder, M. Weatherhead, and R. Liefting. 2007. A controlling factor approach to estuary classification. Ocean &amp; Coastal Management 50:905-929.</div><div>Department of Conservation and Ministry of Fisheries. 2011.;  Coastal marine habitats and marine protected areas in the New Zealand Territorial Sea: a broad scale gap analysis. Wellington, New Zealand.</div></div><div><br /></div><div>https://doc-marine-data-deptconservation.hub.arcgis.com/datasets/ab9d7519a4c94f57afc89ede9e72103e_0/about</div>

Copyright Text: Department of Conservation

Min. Scale: 0

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Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 1090621.0673
YMin: 4748448.0085
XMax: 2461664.9671
YMax: 6190509.1853
Spatial Reference: 2193 (2193)

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Type ID Field:

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• OBJECTID (type: esriFieldTypeInteger, alias: OBJECTID, SQL Type: sqlTypeOther, nullable: true, editable: true)
• HAB_LEG (type: esriFieldTypeString, alias: HAB_LEG, SQL Type: sqlTypeOther, length: 21, nullable: true, editable: true)
• BIOREGION (type: esriFieldTypeString, alias: BIOREGION, SQL Type: sqlTypeOther, length: 23, nullable: true, editable: true)
• DEPTH (type: esriFieldTypeString, alias: DEPTH, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
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• SHAPE_Leng (type: esriFieldTypeDouble, alias: SHAPE_Leng, SQL Type: sqlTypeOther, nullable: true, editable: true)
• AREA_HA (type: esriFieldTypeDouble, alias: AREA_HA, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LOCATION (type: esriFieldTypeString, alias: LOCATION, SQL Type: sqlTypeOther, length: 200, nullable: true, editable: true)
• WRAPS_YEAR (type: esriFieldTypeString, alias: WRAPS_YEAR, SQL Type: sqlTypeOther, length: 15, nullable: true, editable: true)
• ESTUARINE_VEG_TYPE (type: esriFieldTypeString, alias: ESTUARINE_VEG_TYPE, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
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Templates:

Name: Estuarine
Description:
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Prototype:

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Supports Rollback On Failure Parameter: true

Last Edit Date: 5/7/2025 9:46:54 PM

Schema Last Edit Date: 3/20/2025 1:08:39 PM

Data Last Edit Date: 3/20/2025 1:08:39 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat