Parent Layer: Marine Flora

Name: Japanese Wireweed (Sargassum) <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 the brown algae Sargassum muticum (or Japanese weed) on the seabed based on visual classification of each second of the video imagery as well as subsequent dive survey verification. Sargassum distribution is mapped in one of two cover categories (sparse to low cover = trace to 25% cover and moderate to dense cover = 25 to 100% cover). Sargassum grows on rocky substrate (cobbles, boulders, and bedrock) at shallow depths (generally less than 5m) in more protected locations of the survey area. Sargassum is an introduced species which was brought to the British Columbia coast with the importation of Japanese oysters.

Copyright Text: Capital Regional District, 2000

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MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

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Supports Advanced Queries: true

Supports Statistics: true

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Can Modify Layer: true

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Supports Datum Transformation: true

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Spatial Reference: 26910  (26910)

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Supports Query With ResultType: false
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Supports Percentile Statistics: true
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Supports Query Analytic: true
Supports Query With Current User: true

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Has Attachments: false

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• SAR ( type: esriFieldTypeDouble, alias: SAR )
• UTM_N ( type: esriFieldTypeDouble, alias: UTM_N )
• UTM_E ( type: esriFieldTypeDouble, alias: UTM_E )
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Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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