ArcGIS REST Services Directory Login | Get Token
JSON

Layer: Red Sea Urchins (Strongylocentrotus franciscanus) < 1:15,000 (ID: 7)

Parent Layer: Marine Fauna

Name: Red Sea Urchins (Strongylocentrotus franciscanus) < 1:15,000

Display Field: CLASS

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: A survey of the subtidal physical and biological features of the VEHEAP Harbours area (Victoria and Esquimalt Harbour, Gorge and Portage Inlet and Esquimalt Lagoon) with the intent of mapping the general distribution and position of physical and biological features for both inventory and harbour management purposes. The distribution of red sea urchins (Strongylocentrotus franciscanus) on the seabed based on visual classification of each second of the video imagery as well as subsequent dive survey verification. Red sea urchin distribution is mapped in one of two distribution categories, few to patchy and continuous to dense. These urchins are found on rocky substrate in the intertidal zone to deeper subtidal depths. Urchins graze on both attached and drift algae and often create "urchin barrens" which become devoid of marine vegetation.

Copyright Text: Capital Regional District, 2000

Default Visibility: false

MaxRecordCount: 3000

Supported Query Formats: JSON, geoJSON

Min Scale: 15000

Max Scale: 1

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Supports Datum Transformation: true

Extent:
Drawing Info: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Type ID Field: null

Fields:
Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata