Abstract: This dataset shows length weighted connectivity values summarized by hydrologic unit code (HUC) for a provincial stream connectivity indicator that assesses connectivity for aquatic organisms in stream networks. The stream connectivity indicator supports evaluation and reporting on indicator condition over time and provides information to support management of watercourse crossings. The stream connectivity indicator produces an estimate of the average connectivity in a stream network, considering the movement requirements of local species and the locations of watercourse crossings. The indicator is calculated and summarized using hydrologic unit codes (HUCs). Indicator values are calculated at a HUC 6 scale, and summarized for HUC 8 watersheds at four timesteps: 2010, 2014, 2016 and 2018.
Metadata: 
  File identifier: 
      EB11E484-0654-4E2A-8A31-54E0F5FAB2D0
  Language: 
    Language Code: 
      eng
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author: 
    Responsible party: 
      Organisation name: 
          Alberta Environment and Parks, Government of Alberta
      Position name: 
          Lands Planning Branch
      Contact info: 
        Contact: 
          Address: 
            Address: 
              Delivery point: 
                  3rd Floor, Petroleum Plaza South Tower
              Delivery point: 
                  9915-108 St NW
              City: 
                  Edmonton
              Administrative area: 
                  Alberta
              Postal code: 
                  T5K 2G8
              Country: 
                Country: 
                  CA
              Electronic mail address: 
                  AEP.Planning@gov.ab.ca
      Role: 
        Role code: 
          publisher
  Date stamp: 

      2021-08-24
  Metadata standard name: 
      NAP - Metadata
  Metadata standard version: 
      1.2
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Reference system info:

Reference system: Reference system identifier: RS Identifier: Code: 3400 Code Space: EPSG Version: 6.11(9.3.0.0)
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Identification info:

Data identification: Citation: Citation: Title: Stream Connectivity Indicator for Alberta Date: Date: Date: 2021-07-20 Date type: Date type code: creation Date: Date: Date: 2021-08-24 Date type: Date type code: publication Cited responsible party: Responsible party: Organisation name: Alberta Environment and Parks, Government of Alberta Position name: Lands Planning Branch Contact info: Contact: Address: Address: Delivery point: 3rd Floor, Petroleum Plaza South Tower Delivery point: 9915-108 St NW City: Edmonton Administrative area: Alberta Postal code: T5K 2G8 Country: Country: CA Electronic mail address: AEP.Planning@gov.ab.ca Role: Role code: originator Abstract: This dataset shows length weighted connectivity values summarized by hydrologic unit code (HUC) for a provincial stream connectivity indicator that assesses connectivity for aquatic organisms in stream networks. The stream connectivity indicator supports evaluation and reporting on indicator condition over time and provides information to support management of watercourse crossings. The stream connectivity indicator produces an estimate of the average connectivity in a stream network, considering the movement requirements of local species and the locations of watercourse crossings. The indicator is calculated and summarized using hydrologic unit codes (HUCs). Indicator values are calculated at a HUC 6 scale, and summarized for HUC 8 watersheds at four timesteps: 2010, 2014, 2016 and 2018. Purpose: Alberta Environment and Parks and the Alberta Biodiversity Monitoring Institute (ABMI) jointly developed stream connectivity as a biodiversity indicator to support environmental management including cumulative effects management, planning, and reporting on environmental condition. This dataset provides information on changes in the stream connectivity indicator values over time. Credit: Alberta Biodiversity Monitoring Institute, 2021. Status: Progress code: completed Point of contact: Responsible party: Organisation name: Alberta Environment and Parks, Government of Alberta Position name: Lands Planning Branch Contact info: Contact: Address: Address: Delivery point: 3rd Floor, Petroleum Plaza South Tower Delivery point: 9915-108 St NW City: Edmonton Administrative area: Alberta Postal code: T5K 2G8 Country: Country: CA Electronic mail address: AEP.Planning@gov.ab.ca Role: Role code: pointOfContact Resource maintenance: Maintenance information: Maintenance and update frequency: Maintenance frequency code: asNeeded Descriptive keywords: Keywords: Keyword: Alberta, Canada Type: Keyword type code: place Descriptive keywords: Keywords: Keyword: Connectivity status Keyword: Road crossings Keyword: Barrier passability Keyword: Prioritization Keyword: Cumulative effects Keyword: Watersheds Type: Keyword type code: theme Resource constraints: Legal constraints: Access constraints: Restriction code: otherRestrictions Other constraints: Your use of this information will be governed by the terms of the Open Government Licence - Alberta, in force as of the date you accessed the information, found at https://open.alberta.ca/licence Resource constraints: Legal constraints: Use constraints: Restriction code: license Other constraints: To access the data you must agree to the terms of the Open Government Licence - Alberta Resource constraints: Legal constraints: Use limitation: Distribution Liability: Under the terms of the Open Government Licence - Alberta, the Information is licensed as is, and the Information Provider excludes all representations, warranties, obligations, and liabilities, whether express or implied, to the maximum extent permitted by law. The Information Provider is not liable for any errors or omissions in the Information, and will not under any circumstances be liable for any direct, indirect, special, incidental, consequential, or other loss, injury or damage caused by its use or otherwise arising in connection with this licence or the Information, even if specifically advised of the possibility of such loss, injury or damage. Resource constraints: Security constraints: Classification: Classification code: unclassified User note: Public/Unrestricted Classification system: Government of Alberta Data and Information Security Classification Handling description: https://imtpolicy.sp.alberta.ca/standards/pdf/Data-and-Information-Security-Classification-Standard.pdf Language: Language Code: eng Character set: Character set code: utf8 Topic category: Topic category code: inlandWaters Environment description: Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595 Extent: Extent: Geographic element: Geographic bounding box: Extent type code: true West bound longitude: -120 East bound longitude: -110 South bound latitude: 49 North bound latitude: 60 Supplemental Information: To calculate this indicator for all HUC-6 watersheds in Alberta, we used the following datasets:
          
1. Provincial human footprint inventories of linear features (e.g., roads and rails) across multiple years (2010, 2014, 2016, 2018). (Alberta Biodiversity Monitoring Institute Wall-to-Wall Human Footprint Inventory)
          
2. A provincial stream network and Strahler stream order(Alberta ArcHydro Phase 2 Data)
          
3. Locations of known dams (Alberta Dam Safety mapping), bridges (Alberta Transportation bridge inventory for the majority of the province and Government of Alberta Base Features Access and Facility Roads within national parks), stream crossing inspections (Watercourse Crossing Program), and active mining leases (Alberta Energy Regulator Scheme Approval Spatial Data).
          
4. Hydrologic Unit Code Watersheds of Alberta
          
The stream onnectivity indicator is based on a published metric (Diebel et al. 2014) with minor modifications. The metric uses three main inputs:
          
1. Identification of road-stream intersections using human footprint inventories and the provincial stream network
          
2. Assignment of habitat type: we use Strahler stream order as a proxy for habitat type, with lakes as a separate habitat type.
          
3. Passability of culverts: We developed a model to predict the probability that a culvert is hanging(0=complete hang, 1=no hang) at all road-stream intersections, using the boosted-regression tree framework outlined by Januchowski-Hartleyetal.(2014).The final model used in this indicator had across-validation AUC score of 0.8 and contained the following variables: climate moisture index, local slope, confluence bound slope, upstream distance, basin relief, and drainage density.
          
There are four situations where we purposefully mask the predictions from our hanging culvert model:
          
1. If a culvert survey has been performed at a road-stream intersection, the ground-truth value is used. This means that other types of barriers (e.g., garbage, sedimentation, damaged culverts etc.) are captured where survey data is available.
          
2. If a road-stream intersection occurs at a known location of a bridge, we assume there is no barrier to movement (passability = 1)
          
3. If a road-stream intersection occurs at a known dam location, we assume it is a complete barrier to movement (passability = 0).
          
4. If a road-stream intersection occurs within an active mining lease, we assume it is a complete barrier to movement (passability = 0), as water is retained within the boundary of active leases and that streams are often removed during mining activity, which is not captured by the hydrology layer.
          
To calculate the connectivity metric, the stream network for the region is divided into stream segments. Each stream segment is assigned a connectivity value that assesses baseline availability of habitats compared to the availability of habitats if artificial barriers are present in the watershed (HUC-6). The overall connectivity status of a watershed is the length-weighted average of the connectivity status of all the stream segments, where longer stream segments have more weight. The connectivity status metric output is a proportion, which expresses the average connectivity of a stream segment in the watershed.
          
References Diebel, M.W., Fedora, M., Cogswell, S., and Ohanley, J.R. 2014. Effects of road crossings on habitat connectivity for stream-resident fish. River Research and Applications DOI:10.1002/rra.2822. Januchowski-Hartley, S.R., Diebel, M., Doran, P.J., and McIntyre, P.B. 2014. Predicting road culvert passability for migratory fishes. Diversity and Distributions DOI: 10.1111/ddi.12248.
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DISTRIBUTION INFO:

Distribution: Distribution format: Format: Name: ESRI Shapefile Version: 10.7.1 Specification: SHP File decompression technique: ZIP Distributor: Distributor: Distributor contact: Responsible party: Organisation name: Alberta Environment and Parks, Government of Alberta Position name: Provincial Geospatial Centre Contact info: Contact: Address: Address: Delivery point: 9820 - 106 Street NW Delivery point: 14th Floor Oxbridge Place City: Edmonton Administrative area: Alberta Postal code: T5K 2J6 Country: Country: CA Electronic mail address: AEP.Data@gov.ab.ca Role: Role code: distributor Transfer options: Digital transfer options: Units of distribution: MB Transfer size: 35 Online: Online Resource: Linkage: URL: https://extranet.gov.ab.ca/srd/geodiscover/srd_pub/inlandWaters/StreamConnectivityIndicator.zip Protocol: FTP Name: Stream Connectivity Indicator for Alberta (SHP) Description: Shapefile containing Stream Connectivity Indicator for Alberta data (ZIP) Function: Online function code: download Transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://open.alberta.ca/publications/stream-connectivity-indicator-for-alberta Protocol: HTTPS Name: Stream Connectivity Indicator for Alberta (PDF) Description: Provides documentation on the development of Stream connectivity indicator to be applied across the province of Alberta. Function: Online function code: download
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Data quality info:

Data quality: Scope: Scope: Hierarchy level: Scope code: dataset Lineage: Lineage: Statement: The Stream connectivity indicator was initially developed to support regional and subregional planning initiatives. The dataset can be applied for other purposes related to stream connectivity assessment and watercourse crossing management and reporting.
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Metadata maintenance:

Maintenance information: Maintenance and update frequency: Maintenance frequency code: asNeeded
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