https://doi.org/10.82144/4fb30422 https://seamap.env.duke.edu/dataset/71 https://www.gbif.org/dataset/6b33d7c4-d66b-4856-8297-117477639c3e https://obis.org/dataset/82558ef8-fe1b-451e-a0ee-e2d89b7c8bf9 Kelly Macleod Sea Mammal Research Unit, Scottish Oceans Institute, University of St. Andrews Primary contact km53@gatty.st-and.ac.uk OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

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seamap-contact@duke.edu https://seamap.env.duke.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

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seamap-contact@duke.edu https://seamap.env.duke.edu distributor Kelly Macleod Sea Mammal Research Unit, Scottish Oceans Institute, University of St. Andrews Primary contact km53@gatty.st-and.ac.uk owner 2025-07-31 eng Original provider: Sea Mammal Research Unit, University of St. Andrews Dataset credits: Sea Mammal Research Unit (SMRU), University of St. Andrews Abstract: 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. Marine Biology Telemetry Tagged animal Radio transmitters Animal movements N/A This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License. https://seamap.env.duke.edu/dataset/71 Oceans -18.892 3.953 62.346 50.69 1991-08-22 1993-12-25 Scientific names are based on the Integrated Taxonomic Information System (ITIS). species Halichoerus grypus Atlantic gray seal 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. notPlanned Kelly Macleod Sea Mammal Research Unit, Scottish Oceans Institute, University of St. Andrews Primary contact km53@gatty.st-and.ac.uk NA NA NA Kelly Macleod owner NA zd_71 2025-07-31T14:03:45-04:00 dataset Macleod, K. 2012. SMRU Grey Seal UK 1991-1993. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/4fb30422. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/71 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/71/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/71/eml OBIS-SEAMAP zd_71 zd_71 Sea Mammal Research Unit. . Grey seal tracking in the North Sea, 1991-1993.