The movements of 14 grey seals <i>Halichoerus grypus</i> Fab. caught at the Farnes in north-east England (n = 12) and Abertay in eastern Scotland (n = 2) between August 1991 and July 1993 were investigated using Argos Satellite Relay Data Loggers (SRDL). The data are a spreadsheet of points representing seal locations. The low and irregular uplink rate from an SRDL on a seal to the Argos satellites can result in potentially significant errors in some location fixes. Therefore, locations were filtered using an algorithm based on a [maximum speed parameter] of 2 m s-1. This filter rejected 17% of the primary locations that would have required an unrealistic rate of travel to achieve. However, this does not remove all invalid locations hence there are still some data points occurring inland. There are 9,454 locations in the spreadsheet covering all months of the year except February and March.
Grey seals <i>Halichoerus grypus</i> Fab. are large, numerous marine top predators. The British population in 1994 was estimated to be 108,000 individuals and it has been steadily increasing since. Fears concerning competition with fisheries have prompted calls for control measures under the UK Conservation of Seals Act 1970. However, little is known about the areas where grey seals forage or of the distances they may travel. Management must be based on an understanding of the complex seal-fishery interactions, a component of which is having information on the temporal and spatial distribution of seals.
Macleod, K2012SMRU Grey Seal UK 1991-1993http://seamap.env.duke.edu/dataset/71OBIS-SEAMAP71http://seamap.env.duke.edu/dataset/71OBIS-SEAMAP
ground condition
19910822
19931225
None planned
-18.8923.95362.34650.69-18.8923.95362.34650.69Ocean
NoneRadio transmittersAnimal movements
Open public unless otherwise noted. See Use Constraints for details.
1. Not to use data obtained from OBIS-SEAMAP in any publication, product, or commercial application without proper attribution to the original data provider(s) and OBIS-SEAMAP unless the datasets are explicitly shown under the CC0 policy. Citations or credits are suggested as attribution. If the data you downloaded come from multiple datasets, a citation or credit to each of the datasets is required.
Suggested citation for this dataset
Macleod, K. 2012. SMRU Grey Seal UK 1991-1993. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/71) on yyyy-mm-dd.
Suggested citation for OBIS-SEAMAP:
Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography 22(2):104-115
2. To forward the citation of any publication / report that made use of the data / tools provided by OBIS-SEAMAP for inclusion in our list of references.
3. Not to hold OBIS-SEAMAP or the original data providers liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets.
4. The burden for determining fitness for use of the downloaded data for any analyses lies entirely with the user. OBIS-SEAMAP or the original data providers do not support outcomes of your analyses that used the data you downloaded from OBIS-SEAMAP.
5. To consider inclusion of the accompanying transect (effort) dataset if available into the methodology of your analyses.
6. Not to redistribute the data you downloaded from OBIS-SEAMAP through any media without contect from OBIS-SEAMAP and the original data providers unless the datasets are explicitly shown under the CC0 policy.
Shapefile
Kelly Macleod
Sea Mammal Research Unit, Scottish Oceans Institute, University of St. Andrews
mailing and physical address
Gatty Marine Laboratory, University of St. Andrews
Fife
KY16 8LB
Scotland
01334 462629
km53@gatty.st-and.ac.uk
01334 462632
Sea Mammal Research Unit (SMRU), University of St. Andrews
Integrated Taxonomic Information SystemIntegrated Taxonomic Information Systemhttp://www.itis.usda.gov/Downloaded April, 2004Refer to the contact information of the datasetKingdomAnimalia202423PhylumChordata158852SubphylumVertebrata331030ClassMammalia179913SubclassTheria179916InfraclassEutheria179925OrderCarnivora180539SuborderCaniformia552303FamilyPhocidae180640GenusHalichoerus180652SpeciesHalichoerus grypus180653
Relational databaseSea Mammal Research UnitGrey seal tracking in the North Sea, 1991-1993Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach2009OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributionsOceanography22(2):104-115http://www.tos.org/oceanography/article/obis-seamap-the-world-data-center-for-marine-mammal-sea-bird-and-sea-turtle
Benjamin BestDuke Universitymailing and physical addressA321 LSRC, Box 90328DurhamNC27708USA919-613-8021bbest@duke.edu
http://www.nbii.gov/
Biological Data Profile
2016061420160614
All attributes were measured and recorded during the survey and validated by the data provider.All observation records are included.Permissible values for date and time and coordinates were validated by the data provider and the OBIS-SEAMAP data manager. Species identification by the data provider was matched with Integrated Taxonomic Information System.Data were put through the OBIS-SEAMAP data registration steps.20120731
OBIS-SEAMAPNicholas School of Environment, Duke Univ.mailing and physical addressA328, LSRCDurhamNC27708USA919-613-8021seamap-contact@duke.eduNot to hold OBIS-SEAMAP liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets.
Also please refer to Use Constraints.FreeGo to the OBIS-SEAMAP web sitezipzipped shapefilehttp://seamap.env.duke.edu/dataset/71OBIS-SEAMAP Dataset ID 71GCS_WGS_1984Decimal degrees0.0010.001D_WGS_1984WGS_19846378137.000000298.257224Sea Mammal Research Unit, University of St. AndrewsBiogeographic dataBiogeographic dataNot applicableseriesTag IDData providerTag IDdateDate of the observationData provider10/10/19919/9/1993timeTime of the observationData provider0:48:129:59:58latitudeLatitude in decimal degreesData provider50.6962.346longitudeLongitude in decimal degreesData provider-18.8923.953lqLocation qualityData providerLocation qualityspeciesscientific nameData providerscientific namegeomGeometry field added by OBIS-SEAMAPData providerGeometry field added by OBIS-SEAMAPoidUnique ID number (generated by OBIS-SEAMAP)Data providerUnique ID number (generated by OBIS-SEAMAP)