Telemetry data obtained from Fastloc GPS/GSM tracking of 30 harbour seals (Phoca vitulina) and 33 grey seals (Halichoerus grypus), captured in the Baie du Mont-Saint-Michel, Baie des Veys, Baie de Somme, and Archipel de Molene (France), from 2006 to 2013

Date 2021
Temporal extent 2006 -2014
Author(s) Vincent CecileORCID1
Affiliation(s) 1 : Centre d’Etudes Biologique de Chizé, CEBC, UMR 7372 CNRS / La Rochelle Université, 5 allée de l'Océan, 17 000 La Rochelle, France
DOI 10.17882/81033
Publisher SEANOE
Note The dataset consists of: (1) a table summarizing the individual characteristics of captured seals (2) a metadata table for the above parameters (3) five datasets of all individual seal dives recorded by the Fastloc GPS/GSM tags developed at the Sea Mammal Research Unit (SMRU, UK). Each dataset is provided for a separate species (harbour seals Pv or grey seals Hg) and one study site (Baie du Mont-Saint-Michel BSM, Baie des Veys BDV, Baie de Somme BDS, and Archipel de Molene MOL) (4) five metadata files describing the dive parameters for each study site and species (5) five datasets of all individual seal GPS locations recorded by SMRU’s Fastloc GPS/GSM tags. Each dataset is provided for a separate species (Pv or Hg) and one study site (BSM, BDV, BDS and MOL) (6) five metadata files describing the GPS location parameters or each study site and species (7) five datasets of all individual seal haulouts recorded by SMRU’s Fastloc GPS/GSM tags. Each dataset is provided for a separate species (Pv or Hg) and one study site (BSM, BDV, BDS and MOL) (8) five metadata files describing the haulout parameters or each study site and species
Keyword(s) harbour seal, Phoca vitulina, grey seal, Halichoerus grypus, telemetry, GPS, dive, behaviour, movement, marine mammal
Abstract

Tracking data of 30 harbour seals and 33 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, dive parameters and haulouts of the seals fitted with these tags for an average duration of 140 days.

Licence CC-BY-NC-ND
Acknowledgements All seal captures were authorized by the Ministry in charge of the Environment and approved by the regional Ethics committee. Funding was provided by DREAL Normandie, Région Poitou Charente, La Compagnie du Vent, Parc naturel marin d’Iroise (PNMI). We thank all the fieldwork participants for their help in capturing seals, including colleagues from La Rochelle Université (LIENSs, CEBC, Pelagis), the Sea Mammal Research Unit (SMRU), AeroBaie, Réserve Naturelle Domaine de Beauguillot, Zoo de la Flèche, La Bourbansais, Office Français de la Biodiversité (OFB), PNMI, Oceanopolis, Picardie Nature, ADN, Université de Liège (Belgium).
Sensor metadata

GPS location data:

Data_type: Type of data provided (either GPS, Dive or Haulout)

Species: Seal species: Pv=Phoca vitulina (harbour seal), Hg = Halichoerus grypus (grey seal)

Capture_site: Location of the seal capture

Tag_number: Individual number of the seal fitted with a tag. One individual could be "numbered" differently on two consecutive field work if fitted with a new tag.

Seal_ID: Telemetry tag number

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 is rejected due to unrealistic swimming speed, V_Mask=-1 could not be tested due to the lack of previous/next location

 

Dive data:

Data_type:Type of data provided (either GPS, Dive or Haulout)

Species:Seal species: Pv=Phoca vitulina (harbour seal), Hg = Halichoerus grypus (grey seal)

Capture_site:Location of the seal capture

Seal_ID:Individual number of the seal fitted with a tag. One individual could be "numbered" differently on two consecutive field work if fitted with a new tag.

Tag_number:Telemetry tag number

DE_DATE:Date and time of the Dive End

SURF_DUR:Post-dive surface duration (seconds)

DIVE_DUR:Dive duration (seconds)

PERCENT_AREA:Maximum depth (meters)

MAX_DEP:Percentage of the "maximum dive trapezoid" covered by the dive, used for the calculation of the Time Allocation at Depth index (TAD; cf. Fedak et al., 2001; https://doi.org/10.1111/j.1748-7692.2001.tb00982.x).

D1:Intermediate depth point 1 (metres) in the dive, at time = 10% of the total dive duration

D2:Intermediate depth point 2 (metres) in the dive, at time = 20% of the total dive duration

D3:Intermediate depth point 3 (metres) in the dive, at time = 30% of the total dive duration

D4:Intermediate depth point 4 (metres) in the dive, at time = 40% of the total dive duration

D5:Intermediate depth point 5 (metres) in the dive, at time = 50% of the total dive duration

D6:Intermediate depth point 6 (metres) in the dive, at time = 60% of the total dive duration

D7:Intermediate depth point 7 (metres) in the dive, at time = 70% of the total dive duration

D8:Intermediate depth point 8 (metres) in the dive, at time = 80% of the total dive duration

D9:Intermediate depth point 9 (metres) in the dive, at time = 90% of the total dive duration

LAT:Estimated latitude of the end of the dive (interpolated between previous and next "real" Fastloc GPS location recorded by the tag)

LON:Estimated longitude of the end of the dive (interpolated between previous and next "real" Fastloc GPS location recorded by the tag)

 

Haulout data:

Data_type:Type of data provided (either GPS, Dive or Haulout)

Species:Seal species: Pv=Phoca vitulina (harbour seal), Hg = Halichoerus grypus (grey seal)

Capture_site:Location of the seal capture

Tag_number:Individual number of the seal fitted with a tag. One individual could be "numbered" differently on two consecutive field work if fitted with a new tag.

Seal_ID:Telemetry tag number

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 is rejected due to unrealistic swimming speed, V_Mask=-1 could not be tested due to the lack of previous/next location

 

 

Data
File Size Format Processing Access
Summary of individual seals captured and fitted with GPS/GSM tags (France, 2006-2014) 8 KB CSV Quality controlled data Open access
Summary of individual seals captured and fitted with GPS/GSM tags (France, 2006-2014): metadata 746 bytes CSV Quality controlled data Open access
Dive data from grey seals tracked with GPS/GSM tags from Baie de Somme (France) in 2012-13 68 MB CSV Quality controlled data Open access
Dive data from grey seals tracked with GPS/GSM tags from Baie de Somme (France) in 2012-13: metadata 1 KB CSV Quality controlled data Open access
Dive data from harbour seals tracked with GPS/GSM tags from Baie de Somme (France) in 2008-09 56 MB CSV Quality controlled data Open access
Dive data from harbour seals tracked with GPS/GSM tags from Baie de Somme (France) in 2008-09: metadata 2 KB CSV Quality controlled data Open access
Dive data from harbour seals tracked with GPS/GSM tags from Baie des Veys (France) in 2007-09 46 MB CSV Quality controlled data Open access
Dive data from harbour seals tracked with GPS/GSM tags from Baie des Veys (France) in 2007-09: metadata 1 KB CSV Quality controlled data Open access
Dive data from harbour seals tracked with GPS/GSM tags from Baie du Mont-Saint-Michel (France) in 2006-08 15 MB CSV Quality controlled data Open access
Dive data from harbour seals tracked with GPS/GSM tags from Baie du Mont-Saint-Michel (France) in 2006-08: metadata 1 KB CSV Quality controlled data Open access
Dive data from grey seals tracked with GPS/GSM tags from Archipel de Molene (France) in 2010-14 140 MB CSV Quality controlled data Open access
Dive data from grey seals tracked with GPS/GSM tags from Archipel de Molene (France) in 2010-14: metadata 1 KB CSV Quality controlled data Open access
GPS locations of grey seals tracked with GPS/GSM tags from Baie de Somme (France) in 2012-13 6 MB CSV Quality controlled data Open access
GPS locations of grey seals tracked with GPS/GSM tags from Baie de Somme (France) in 2012-13: metadata 787 bytes CSV Quality controlled data Open access
GPS locations of harbour seals tracked with GPS/GSM tags from Baie de Somme (France) in 2008-09 1 MB CSV Quality controlled data Open access
GPS locations of harbour seals tracked with GPS/GSM tags from Baie de Somme (France) in 2008-09: metadata 787 bytes CSV Quality controlled data Open access
GPS locations of harbour seals tracked with GPS/GSM tags from Baie des Veys (France) in 2007-09 2 MB CSV Quality controlled data Open access
GPS locations of harbour seals tracked with GPS/GSM tags from Baie des Veys (France) in 2007-09: metadata 787 bytes CSV Quality controlled data Open access
GPS locations of harbour seals tracked with GPS/GSM tags from Baie du Mont-Saint-Michel (France) in 2006-08 1 MB CSV Quality controlled data Open access
GPS locations of harbour seals tracked with GPS/GSM tags from Baie du Mont-Saint-Michel (France) in 2006-08: metadata 1 KB CSV Quality controlled data Open access
GPS locations of grey seals tracked with GPS/GSM tags from Archipel de Molene (France) in 2010-14 15 MB CSV Quality controlled data Open access
GPS locations of grey seals tracked with GPS/GSM tags from Archipel de Molene (France) in 2010-14: metadata 787 bytes CSV Quality controlled data Open access
Haulout data from grey seals tracked with GPS/GSM tags from Baie de Somme (France) in 2012-13 216 KB CSV Quality controlled data Open access
Haulout data from grey seals tracked with GPS/GSM tags from Baie de Somme (France) in 2012-13: metadata 946 bytes CSV Quality controlled data Open access
Haulout data from harbour seals tracked with GPS/GSM tags from Baie de Somme (France) in 2008-09 171 KB CSV Quality controlled data Open access
Haulout data from harbour seals tracked with GPS/GSM tags from Baie de Somme (France) in 2008-09: metadata 946 bytes CSV Quality controlled data Open access
Haulout data from harbour seals tracked with GPS/GSM tags from Baie des Veys (France) in 2007-09 2 MB CSV Quality controlled data Open access
Haulout data from harbour seals tracked with GPS/GSM tags from Baie des Veys (France) in 2007-09: metadata 946 bytes CSV Quality controlled data Open access
Haulout data from harbour seals tracked with GPS/GSM tags from Baie du Mont-Saint-Michel (France) in 2006-08 89 KB CSV Quality controlled data Open access
Haulout data from harbour seals tracked with GPS/GSM tags from Baie du Mont-Saint-Michel (France) in 2006-08: metadata 946 bytes CSV Quality controlled data Open access
Haulout data from grey seals tracked with GPS/GSM tags from Archipel de Molene (France) in 2010-14 15 MB CSV Quality controlled data Open access
Haulout data from grey seals tracked with GPS/GSM tags from Archipel de Molene (France) in 2010-14: metadata 946 bytes CSV Quality controlled data Open access
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How to cite 

Vincent Cecile (2021). Telemetry data obtained from Fastloc GPS/GSM tracking of 30 harbour seals (Phoca vitulina) and 33 grey seals (Halichoerus grypus), captured in the Baie du Mont-Saint-Michel, Baie des Veys, Baie de Somme, and Archipel de Molene (France), from 2006 to 2013. SEANOE. https://doi.org/10.17882/81033