Telemetry data obtained from Fastloc GPS/GSM tracking of 7 grey seals (Halichoerus grypus) captured in the Seine estuary (France) in 2022 and 2023

Tracking data of 7 grey seals were obtained from the deployment of Fastloc GPS/GSM tags developed by the Sea Mammal Research Unit (UK). Full tag description is available at: http://www.smru.st-andrews.ac.uk/Instrumentation/GPSPhoneTag/. The tags include a wet-dry sensor from which haulout events are recorded, a pressure sensor providing detailed dive data, as well as a Fastloc GPS recording irregular locations when the seal is not underwater. Data is stored onboard and transmitted via the GSM network when the seal is in the reception range. The data provided here are the individual GPS locations of the seals fitted with these tags for an average duration of 135 days.

Tracking data of 7 grey seals were obtained from the deployment of Fastloc GPS/GSM tags developed by the Sea Mammal Research Unit (UK). Full tag description is available at: http://www.smru.st-andrews.ac.uk/Instrumentation/GPSPhoneTag/. The tags include a wet-dry sensor from which haulout events are recorded, a pressure sensor providing detailed dive data, as well as a Fastloc GPS recording irregular locations when the seal is not underwater. Data is stored onboard and transmitted via the GSM network when the seal is in the reception range. The data provided here are the individual GPS locations of the seals fitted with these tags for an average duration of 135 days.

Disciplines

Biological oceanography

Keywords

grey seal, halichoerus grypus, movement, GPS, at-sea distribution, marine mammal

Location

57.660093N, 46.893982S, 7.482902E, -11.545418W

Devices

Data_type: Type of data provided (here GPS location)

Species: Seal species: Hg = Halichoerus grypus (grey seal)

Capture_site: Location of the seal capture

Seal_ID: Seal ID based on the species, location and number of previous individuals fitted with tags

D_DATE: Date and time (UTC 0) of the recorded Fastloc GPS location

LAT: Latitude of the Fastloc GPS location (in decimal degrees)

LON: Longitude of the Fastloc GPS location (in decimal degrees)

V_MASK: SMRU filter of the locations. V_Mask=0 is plausible, V_Mask=20 or 50 is rejected due to unrealistic swimming speed (but may still be true when the seal swims in fast tidal currents!), V_Mask=-1 could not be tested due to the lack of previous/next location

Data

FileSizeFormatProcessingAccess
GPS locations of grey seals tracked with GPS/GSM tags from the Seine estuary (France) in 2022-2023
3 MoCSVRaw data
GPS locations of grey seals tracked with GPS/GSM tags from the Seine estuary (France) in 2022-2023 - Metadata
754 octetsCSVProcessed data
Summary of individual seals captured and fitted with GPS/GSM tags (Seine Estuary, 2022-23)
893 octetsCSVProcessed data
Summary of individual seals captured and fitted with GPS/GSM tags (Seine Estuary, 2022-23) - Metadata
703 octetsCSVProcessed data
How to cite
Vincent Cecile, Lecarpentier Thomas (2024). Telemetry data obtained from Fastloc GPS/GSM tracking of 7 grey seals (Halichoerus grypus) captured in the Seine estuary (France) in 2022 and 2023. SEANOE. https://doi.org/10.17882/98773

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