Description

The white shark (Carcharodon carcharias), is a species found in Atlantic Canadian waters which is encountered in commercial and recreational fisheries. Pop-up Satellite Archival Tags (PSAT) from Wildlife Computers were applied to white sharks from 2016 to the present to collect data on depth (pressure), temperature and ambient light level (for position estimation). Deployments were conducted in Canada and the United States (Cape Cod and South Carolina) on scientific charters, typically in summer. Tag models deployed included: Mk10 (N=1), and MiniPAT (N=29) and 22 of 27 tags reported with 3 still at liberty. One individual shark returned to the location of tagging 1 year later and the physical tag was recovered. Another tag was recovered 5 years after deployment. White sharks tagged ranged in size from 259 cm to 459 cm Total Length (curved) estimated; 15 were female, 13 were male, and 2 were of unknown sex. Time at liberty ranged from 48 – 377 days and to date, only 3 tags remained on the shark for the programmed duration. Tagging of white sharks is an ongoing study and data will be updated here when it becomes available. Raw data transmitted from the PSAT’s after release was processed through Wildlife Computers software (GPE3) to get summary files, assuming a maximum swimming speed of 2m/s, NOAA OI SST V2 High Resolution data set for SST reference and ETOPO1-Bedrock dataset for bathymetry reference. The maximum likelihood position estimates are available in .csv and .kmz format and depth and temperature profiles are also in .csv format. Other tag outputs as well as metadata from the deployments can be obtained upon request from: warren.joyce@dfo-mpo.gc.ca or heather.bowlby@dfo-mpo.gc.ca.

Resources

Name	Format	Description	Link
White Shark depth and temperature from series files	CSV		https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/d6944567-65f1-429d-8055-1102354967aa/attachments/CSVDownloadsSeries.zip
GPE3 location estimates - White Shark	CSV		https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/d6944567-65f1-429d-8055-1102354967aa/attachments/CSVMaps.zip
Data Dictionary	CSV		https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/d6944567-65f1-429d-8055-1102354967aa/attachments/WhiteShark_DD.csv
GPE3 location estimates - White Shark	Unknown		https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/d6944567-65f1-429d-8055-1102354967aa/attachments/WhiteShark_DL2026.zip
GPE3 location estimates - White Shark	Unknown		https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/d6944567-65f1-429d-8055-1102354967aa/attachments/WhiteSharkRequinBlancKMZ.zip
Pelagic Shark Satellite Tag data - White Shark	Ersi REST		https://egisp.dfo-mpo.gc.ca/arcgis/rest/services/open_data_donnees_ouvertes/pelagic_shark_satellite_tag_data_white_shark/MapServer
Pelagic Shark Satellite Tag data - White Shark	Ersi REST		https://egisp.dfo-mpo.gc.ca/arcgis/rest/services/open_data_donnees_ouvertes/pelagic_shark_satellite_tag_data_white_shark/MapServer

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