4464bed3284bd9ac35f5b7ba725ac381 English dataset Natural England Natural England Enquiries Service +44 (0)300 060 3900 +44 (0)300 060 2356 Foss House, Kings Pool, 1-2 Peasholme Green York YO1 7PX enquiries@naturalengland.org.uk pointOfContact 2022-12-01 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 Littoral Biotope Survey and Condition Assessment of the Tamar, Tavy and St John's Lake SSSI 2010 GB100206 NERC_DDC 2013-03-01 publication 2010-11-09 creation 2013-03-01 revision GB100206 A Natural England commissioned verification survey. Littoral biotope survey and condition assessment of the Tamar, Tavy and St John's Lake SSSI. The purpose of the study was to establish a physical and biological baseline dataset to facilitate an assessment of favourable condition status of littoral sediment habitats of the SSSI site, as well as identifying species and biotopes that are representative and/or notable within the Tamar, Tavy and St John's Lake. The study comprised of Phase I and Phase II surveys. Phase I comprised of groundtruthing aerial photography to establish the distribution and extent of intertidal biotopes, interest features and species. Followed by Phase II; detailed descriptions of biotopes present , flora and fauna species list and abundance, as well as sediment characteristics by means of box-core sampling. The data was used to produce a detailed biotope map of the Tamar, Tavy and St John's Lake. Ecospan Environmental Limited General enquiries info@ecospan.co.uk originator Natural England Natural England Enquiries Service +44 (0)300 060 3900 +44 (0)300 060 2356 Foss House, Kings Pool, 1-2 Peasholme Green York YO1 7PX enquiries@naturalengland.org.uk custodian notPlanned Marine Environmental Data and Information Network Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Habitat characterisation SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision http://www.naturalengland.org.uk/Images/open-government-licence-NE-OS_tcm6-30743.pdf otherRestrictions No restrictions to public access English biota SeaDataNet vertical extent keywords 2010-01-01 revision unknown -4.2513 -4.1506 50.3540 50.4991 2010-10-08 2010-11-09 Natural England Natural England Enquiries Service +44 (0)300 060 3900 +44 (0)300 060 2356 Foss House, Kings Pool, 1-2 Peasholme Green York YO1 7PX enquiries@naturalengland.org.uk distributor http://publications.naturalengland.org.uk/file/6274823232684032 A link to the web service or dataset http://publications.naturalengland.org.uk Natural England publications website homepage A link to the general host site dataset Phase I - Georeferenced 2007 Channel Coastal Observatory aerial photographs were examined and groundtruthed, and the distribution and extent of intertidal biotopes, interest features, and species were identified. A digitised map of the intertidal zone was produced showing spatial extent of the main biotopes. Ground truthing involved surveying between predetermined stations at approximately 500m intervals. Any changes in biotope presence/extent between the stations was marked and topography, redox profile and sediment type recorded. Georeferenced photographs of littoral sediment habitats were taken at each station. Phase II - Intertidal sediement cores were taken at 49 predetermined stations using a 0.01m2 box core (40 in Tamar, Tavy and 9 in St John's Lake). An additional sample for Particle Size Analysis was also taken at each site. Samples were sieved over a 0.5mm sieve. The core stations provided a representative sample of fauna within each biotope present. The number of cores taken was proportional to the biotope area/extent. Phase I 8th-11th October Phase II 6th-9th November 2010. Standard procedures and guidelines were followed for both Phase I and Phase II surveys. JNCC(2004) Common Standards Monitoring Guidance for Littoral Sediment Habitats and ISO 16665:2005 Sampling and Preservation Standards. 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.