Name: Physical_habitats

Display Field: Broad_Ha_1

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Habitat mapping of Te Whanganui-a-Hei Marine Reserve was carried out from Sidescan surveys by MetOcean Ltd in 2009 and later in 2013 diving and video surveys by DOC, detailed below;Te Whanganui-a-Hei Marine Reserve Habitat Mapping, eCoast Ltd. 2016. Report Summary:A Marine habitat survey using remote video was undertaken within and outside Te Whanganui-a-Hei Marine Reserve, Coromandel in November 2013. The aim of the video survey was to: 1) document main physical and biological habitat types in previously non-surveyed areas of the reserve; and, 2) use this information to update and build on a historical map of the reserve created in 2004. Video survey data along with historical habitat data were used to construct an interactive habitat map of the area. Habitat classifications were assigned in accordance with a draft Marine Habitat Classification Scheme produced for the Department of Conservation (Dohner, 2013). A total of 6 physical (abiotic) habitat types were classified within Te Whanganui-a-Hei Marine Reserve. Of these, 2 were soft sediment in nature (sand and coarse sand) and comprised > 60% of the reserve area; 2 were rocky reef (boulder and bedrock comprising > 24% of the reserve area), with the remaining habitat classifications a bivariate combination of sand and low-lying bedrock reef that alternated in dominance, i.e., sand and bedrock or bedrock and sand. Boulder reef was common < 10 m depth across the reserve mainland coast spanning the western inshore reserve boundary (Mussel Rock) to Gemstone Bay (eastern inshore boundary), which transitioned into either sand or sand and patchy bedrock reef with increasing distance offshore. Deeper bedrock reef > 10 m depth was typically associated with the many offshore islands contained within the reserve. A similar suite of physical habitat types occurred outside the reserve and, as such, there were no physical habitat types exclusive to either the reserve or non-reserve sample/survey areas. A total of 9 biological (biotic) habitat types were classified from the analysis of available data within Te Whanganui-a-Hei Marine Reserve. Habitats associated with rocky reef were algal dominated and exhibited predictable distributional patterns with depth. This included shallow Carpophyllum spp (0-3m depth), mixed algal habitat (3-8m depth), Ecklonia radiata habitat (10-15m depth) and Ecklonia radiata and sponge habitat (>15 m depth). In addition to algal-dominated habitats a biogenic sponge and sessile invertebrate community was unique to the reserve between Cook’s Bluff and Motukorure Island (Centre Island) within sand and bedrock habitat > 20 m depth. Biological communities associated with sand and coarse sediment were not obvious from video data, but were classified biologically as Epifaunal_infaunal community Type 1 associated with sand habitat and Epifaunal_infaunal community Type 2 associated with coarse sand habitat. All reserve habitat types were present within the non-reserve sample area; however, three habitat types Carpophyllum flexuosum, urchin barrens, and urchin barrens and macroalgae were exclusive to the non-reserve sample area. The distribution of main biological and physical habitats within and outside Te Whanganui-a-Hei Marine Reserve are presented, together with various features of the habitat map developed for this project. Areas for future development are also discussed.

Copyright Text: Department of Conservation - Te Papa Atawhai

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 1.956516621332321E7
YMin: -4421336.702985887
XMax: 1.9574066594774134E7
YMax: -4410264.514410248
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: Broad_Ha_1
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: Bedrock
  Label: Bedrock
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [78, 78, 78, 255]
  Outline:
  N/A
• Value: Bedrock and Sand
  Label: Bedrock and Sand
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [115, 115, 0, 255]
  Outline:
  N/A
• Value: Boulder
  Label: Boulder
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [156, 156, 156, 255]
  Outline:
  N/A
• Value: Coarse Sand
  Label: Coarse Sand
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [255, 211, 127, 255]
  Outline:
  N/A
• Value: Rocky Reef
  Label: Rocky Reef
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [168, 112, 0, 255]
  Outline:
  N/A
• Value: Sand
  Label: Sand
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [255, 255, 0, 255]
  Outline:
  N/A
• Value: Sand and Bedrock
  Label: Sand and Bedrock
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [168, 168, 0, 255]
  Outline:
  N/A
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• Broad_Ha_1 ( type: esriFieldTypeString, alias: Broad_Ha_1, length: 50 )
• Shape_Length ( type: esriFieldTypeDouble, alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )

Supported Operations:   Query   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata