Name: Saltmarsh

Display Field: HAB_LEG

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Saltmarshes and mangroves are the dominant vegetation in sheltered estuarine intertidal areas with salt marshes dominating in higher latitudes and mangroves dominating low latitudes with overlap in subtropical regions, such as those found in New Zealand. While mangroves are confined to the upper North Island, salt marsh vegetation is found throughout the country. In areas where both habitats occur, salt marsh vegetation is usually found at higher tidal levels fringing the estuary. Salt marsh plants are largely grasses and herbs such as sea rush, oioi and saltmarsh ribbon wood. These plants provide important habitats and food sources for both terrestrial and marine species and they provide key services to combat storm surges and sea level rise through slowing water flow to trap, stabilize and bind marine sediments and pollutants. Most of New Zealand’s estuaries and salt marshes have been altered or lost through development activities. This map shows salt marsh coverage around the country with over 9,000 areas identified from data collated in 2011 by the Department of Conservation (DOC). <div><br /></div><div>Limitations include changes over time that could be updated with new data utilizing additional aerial survey tools. Some more detailed regional data sets may not be included here and should be used for more localized assessments.</div><div><br /></div><div>Coastal marine habitats and marine protected areas in the New Zealand Territorial Sea: a broad scale gap analysis. Department of Conservation and Ministry of Fisheries. Wellington, New Zealand.</div><div><br /></div><div>https://doc-marine-data-deptconservation.hub.arcgis.com/datasets/ab9d7519a4c94f57afc89ede9e72103e_0/about</div>

Copyright Text: Department of Conservation

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Spatial Reference: 2193 (2193)

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Name: Saltmarsh
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Last Edit Date: 5/7/2025 9:38:39 PM

Schema Last Edit Date: 3/20/2025 1:07:51 PM

Data Last Edit Date: 3/20/2025 1:07:51 PM

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