bf1da11e931043ebc681bcf370dc5338 English dataset Data Archive for Seabed Species and Habitats (DASSH) 01752 426237 dassh.enquiries@mba.ac.uk pointOfContact 2025-06-19 MEDIN 3.1.2 EPSG Geodetic Parameter Registry 2021-01-06 revision WGS 84 2014 Natural England (NE) and The Bromley Trust Distribution of Non-Native Species (NNS) in English marinas 2015-02-04 publication MRNE017200000002 Marine Recorder The survey was undertaken to assess the presence of non-native species in 43 marinas throughout Southern England. The funding for this project came from the Natural England, The Bromley Trust and the Marine Biological Association, administered by Natural England. All 34 target NNS presence/absence are noted and abundance estimated. Some native species are also included in this dataset. The majority of species were determined on site. This method focuses primarily on fouling organisms which live attached to solid substrates. Natural England Data Team +44 (0)845 600 3078 marinegidata@naturalengland.org.uk owner Natural England Data Team +44 (0)845 600 3078 marinegidata@naturalengland.org.uk custodian Christine Wood Marine Biological Association of the United Kingdom cwo@mba.ac.uk originator Natural England Data Team +44 (0)845 600 3078 marinegidata@naturalengland.org.uk distributor notPlanned Marine Environmental Data and Information Network MEDIN metadata record availability 2025-06-19 revision Buildings Land use Oceanographic geographical features Species distribution GEMET - INSPIRE themes, version 1.0 2021-09-28 revision Macroalgae and seagrass taxonomy-related counts Man-made structures Marine environment leisure usage Salinity of the water column Secchi disk depth Temperature of the water column SeaDataNet Parameter Discovery Vocabulary 2021-09-28 revision otherRestrictions Copyright MBA 2014 CC-BY 4.0 License (https://creativecommons.org/licenses/by/4.0/) otherRestrictions Copyright MBA 2014 English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 biota oceans society structure -5.9652 1.6373 49.8356 51.4859 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 Sea Charting Progress 2 Sea Areas 2021-01-06 creation Eastern Channel Charting Progress 2 Sea Areas 2021-01-06 creation Irish Sea Charting Progress 2 Sea Areas 2021-01-06 creation Southern North Sea Charting Progress 2 Sea Areas 2021-01-06 creation Western Channel and Celtic Sea ICES Statistical Areas 2021-01-06 creation Ivc ICES Statistical Areas 2021-01-06 creation VIId ICES Statistical Areas 2021-01-06 creation VIIe ICES Statistical Areas 2021-01-06 creation VIIf ICES Statistical Areas 2021-01-06 creation VIIg 2013-07-18 2014-11-09 SeaVoX Vertical Co-ordinate Coverages 2021-01-06 revision water column Database Delimited Documents https://www.gbif.org/dataset/fae37d1f-5b7a-4fe2-8cfa-8948aefbcac2 Link to data download https://registry.nbnatlas.org/public/show/dr833 Link to data download 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 Spatial dataset This dataset is part of a larger dataset which includes Welsh marinas. Method - Rapid Assessment Survey (RAS) -This method focuses primarily on fouling organisms which live attached to solid substrates. At each marina the available floating pontoons were allocated between the 3 surveyors. Each surveyor spent 1 hour searching their allocated area, examining and scraping pontoon sides, and examining any other substrates accessible from the surface e.g. ropes, buoys, fenders, kelps etc. All 34 target NNS presence/absence were noted and abundance estimated (using an abbreviated and adapted SACFORN scale where A=SA, F=CF, R=OR, N=N). The majority of species were determined on site. Any other potential NNS, unidentified specimens, those requiring microscopical examination for species confirmation, and specimens to substantiate significant findings were relaxed, preserved and examined later in the laboratory. The specimens were relaxed using menthol crystals and preserved in 70% IDA (Industrial Denatured Alcohol) in the field. Lab ID may involve dissection for confirmation of ID. Temperature and salinity were recorded at surface and at 2m depth at each marina. Secchi depth was also recorded to measure turbidity in the water column. Coordinates WGS 84 lat/long from www.gridreferencefinder.com Internal QA procedure at the Marine Biological Association.