Extent of coastal habitats / Estuary vegetation mapping (Waikato Region)

Monitoring changes in the extent and distribution of different intertidal vegetated habitats in selected estuaries in the Waikato region for Waikato Regional Council. Data are used to track trends indicating the health of our harbours, assess resource consent applications, identify potential issues (provide useful focus for harbour care groups), identify emerging issues, provide indication of the effectiveness of policies.

Baseline information was derived from aerial colour photographs taken between 1995 and 2003, ground-truthed in field surveys. Between 2004 and 2009 estuaries were surveyed using aerial photography and field surveys.

Sampling sites are located on the Coromandel Peninsula and the West coast (Aotea to Raglan).

Sampling frequency = Coromandel Penninsular estuaries; colour aerial photographs (1995, 1996), field surveys (1997 to 1999). West coast estuaries; colour aerial photographs (2002, 2003), field surveys (2004, 2005).

Estuaries are re-visited every 5-7 years (varied timing).

Number of sites = 16.

Extent of site = complete estuary. Number of replicates = 1 photograph.

Measured variables = multispecies (vegetaion) mapping.

Sampling protocol & QA = Analysis using arial photography.

The classification of vegetation types broadly follows the proposed national classification system, developed under a Ministry for the Environment Sustainable Management Fund project.

 
Citation proposal
. Extent of coastal habitats / Estuary vegetation mapping (Waikato Region). https://dc.niwa.co.nz:/niwa_dc/srv/api/records/ce2acfe6-c392-43eb-a417-bd45a1bee845
 

Simple

Date

  Point of contact

  +64 7 859 0998 
Website
Waikato Regional Council  

Link to the Waikato Regional Council website

Keywords
  • intertidal sandflats mudflats vegetation marine estuarine coastal coast-land benthic soft ecological aerial photography visual observation
Specific usage
MEMP

 

Use limitation
Public
Metadata language
eng
Character set
UTF8
Topic category
  • Environment
Description
Coromandel Peninsula: Coromandel, Firth of Thames, Manaia, Otahu, Otama, Tairua, Te Kouma, Waikawau, Whangamata, Wharekawa, Whitianga, Whangapoua. West coast: Aotea, Kawhia, Port Waikato, Raglan
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OnLine resource
Point of truth URL of this metadata record  

Point of truth URL of this metadata record

OnLine resource
Link to the report and Excel spreadsheet of data for the coastal habitat  

Link to the report and Excel spreadsheet of data for the coastal habitat

Hierarchy level
Dataset
Statement

Quality assurance was imposed on methods.

Geographic data used New Zealand Map Grid on a 1:50,000 scale(LINZ). Mapping was completed in GIS. Temporal data were in NZST.

Limitation: Varied sample timing (no information on standardised season)

gmd:MD_Metadata

File identifier
ce2acfe6-c392-43eb-a417-bd45a1bee845   XML
Date stamp
2012-08-07T10:26:30
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0

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