Northwest Calvert sea wrack temporal data, Central Coast, British Columbia (2016-2017)

This dataset contains the collection site locations, visit dates, and weights of each species of shore cast algae or seagrass found during each site visit.

Dead, shore-cast seaweeds and seagrasses (commonly called sea wrack) provide an important vector of marine-derived nutrients to low productivity terrestrial environments, such as beaches. However, little is known about the processes that facilitate wrack transport, deposition, and accumulation in coastal temperate British Columbia. Throughout the course of one year, I visited three sites on a bi-monthly basis to document temporal changes in wrack biomass and species composition. At each site, wrack was measured along 12 permanent 1-meter wide belt-transects. The transects ran perpendicular to the water's edge, originating at the forest-beach interface and extending to the ocean at low tide. I found wrack biomass to be similar throughout all four seasons, wrack species composition, however, varied. My results suggest sea wrack is a consistent vector of potential nutrients from the marine to the terrestrial environment in British Columbia. Detailed methods and conclusions in the MSc thesis found in the linked folder.

Sara Wickham – University of Victoria, Brian Starzomski – University of Victoria; John Reynolds – Simon Fraser University; Chris Darimont – University of Victoria

Access and Use

Licence: Creative Commons Attribution 4.0
Limitations: Appropriate credit must be given to Hakai Institute and the authors of the dataset.

Data and Resources

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Sea wrack temporal dataHTML

The sea wrack temporal data used the analysis described by this record.

Citation

Keywords

Dataset extent

Map data © OpenStreetMap contributors

Metadata Reference Date(s) September 23, 2021 (Publication)
September 23, 2021 (Revision)
Data Reference Date(s) April 30, 2016 (Creation)
Frequency of Update As Needed

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Source last modified August 25, 2022 at 04:07

Other records harvested from Hakai Metadata Form data

Responsible Party 1
Name
Sara Wickham
Affiliation
University of Victoria
Email
swickham@uvic.ca
Role
  • Author
  • Originator
  • Owner
  • Principal Investigator
Responsible Party 2
Affiliation
Hakai Institute
Role
  • Custodian
  • Distributor
  • Owner
  • Resource Provider
Responsible Party 3
Name
Hakai Geospatial Technology Team
Affiliation
Hakai Institute
Email
data@hakai.org
Role
  • Custodian
  • Point of Contact

Field Value
Ocean Variables Other
Scope Dataset
Status Completed
Topic Category oceans
Maintenance Note Generated from https://cioos-siooc.github.io/metadata-entry-form
Spatial Extent { "coordinates": [ [ [ -128.16422429, 51.6467821 ], [ -128.12137762, 51.6467821 ], [ -128.12137762, 51.67123185 ], [ -128.16422429, 51.67123185 ], [ -128.16422429, 51.6467821 ] ] ], "type": "Polygon" }
North Bounding Latitude 51.67123185
South Bounding Latitude 51.6467821
East Bounding Longitude -128.12137762
West Bounding Longitude -128.16422429
Temporal Extent
Begin
2016-04-30
End
2016-06-01
Vertical Extent
Min
0.0
Max
100.0
Default Locale English