500f520c706b2133e1d04bf3cdafc0b9 English dataset DASSH Data Manager Marine Biological Association of the United Kingdom 01752 426237 info@mba.ac.uk pointOfContact 2025-04-30 MEDIN 3.1.2 EPSG Geodetic Parameter Registry 2021-01-06 revision WGS 84 1974 Biological Conservation. Isles of Scilly and Cornwall. Population survey of Grey seal (Halichoerus grypus). 1974-10-01 publication 1973-10-05 revision 1973-10-05 creation DASSHDT00000486 https://www.dassh.ac.uk/ Cornwall and the Isles of Scilly were explored for grey seal breeding locations during the 1973 breeding season. The primary aim of this study was to revisit these recorded breeding sites, locate new ones and obtain an up-to-date estimate of the population. a secondary objective was to tag as many pups as possible to investigate relationships between different populations of seals. The database includes abundance of seals found and location according to National Grid Reference. Data Manager Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) data.manager@cefas.co.uk owner DASSH Data Manager Marine Biological Association of the United Kingdom 01752 426237 info@mba.ac.uk custodian C. F. Summers Ministry of Agriculture, Fisheries and Food (MAFF), Lowestoft Fisheries Laboratory dassh.enquiries@mba.ac.uk originator DASSH Data Manager Marine Biological Association of the United Kingdom 01752 426237 info@mba.ac.uk distributor notPlanned Marine Environmental Data and Information Network MEDIN metadata record availability 2025-05-27 revision NDGO0005 NDGO0005 2025-05-27 revision Species distribution GEMET - INSPIRE themes, version 1.0 2021-09-28 revision Seal abundance Seal behaviour Seal mortality SeaDataNet Parameter Discovery Vocabulary 2021-09-28 revision otherRestrictions Open Government Licence - https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ otherRestrictions Data published under Open Government License (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 biota oceans -6.410 -4.6638 49.8667 50.7127 SeaVox salt and freshwater body gazetteer 2021-01-06 creation Bristol Channel SeaVox salt and freshwater body gazetteer 2021-01-06 creation Celtic Sea SeaVox salt and freshwater body gazetteer 2021-01-06 creation English Channel SeaVox salt and freshwater body gazetteer 2021-01-06 creation North Atlantic Ocean Charting Progress 2 Sea Areas 2021-01-06 creation Western Channel and Celtic Sea ICES Rectangles 2021-01-06 creation 28E3 ICES Rectangles 2021-01-06 creation 28E4 ICES Rectangles 2021-01-06 creation 28E5 ICES Rectangles 2021-01-06 creation 29E3 ICES Rectangles 2021-01-06 creation 29E4 ICES Rectangles 2021-01-06 creation 29E5 ICES Rectangles 2021-01-06 creation 30E3 ICES Rectangles 2021-01-06 creation 30E4 ICES Rectangles 2021-01-06 creation 30E5 ICES Rectangles 2021-01-06 creation 31E3 ICES Rectangles 2021-01-06 creation 31E4 ICES Rectangles 2021-01-06 creation 31E5 ICES Statistical Areas 2021-01-06 creation VIIe ICES Statistical Areas 2021-01-06 creation VIIf ICES Statistical Areas 2021-01-06 creation VIIg 1973-09-24 1973-10-05 SeaVoX Vertical Co-ordinate Coverages 2021-01-06 revision upper epipelagic water column Summers, C. F., 1974. The grey seal (Halichoerus grypus) in Cornwall and the Isles of Scilly. Biological Conservation, Vol. 6, No. 4. Delimited https://doi.org/10.17031/677e6caceb016 DOI link dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication true MEDIN data guideline for ad-hoc sightings and non-effort or quantitative based visual surveys of marine life 2018-10-08 publication true Known breeding sites across, predominantly the north coast, but also the south coast of Cornwall, and the Isles of Scilly were explored by Zodiac MK III. Two boats were used to search Cornwall, and one in the Isles of Scilly. The boat was breached inside the cave, or divers swam inside if the cave was not large enough to enter by boat. On rough days, access to the caves was obtained by climbing down cliffs. Seals were counted and classified using a scheme described by Boyd et al. 1962. Summers, C. F., 1974. The grey seal (Halichoerus grypus) in Cornwall and the Isles of Scilly. Biological Conservation, Vol. 6, No. 4. Marine Recorder survey number: MRNE013400000014. This data has been reviewed against the DASSH Quality Assessment Criteria (http://doi.org/10.17031/64ccec5c7ba72) and been categorised as medium quality. If any sensitive species or biotope records are present within this dataset, they will have been removed. If you wish to request access to sensitive species records, please contact the metadata contact. The UK Sensitive Species list has been agreed by UK statutory bodies and relevant experts. It can be viewed here https://docs.nbnatlas.org/sensitive-species-list/. Please note sensitive species lists can vary across the UK.