6d18fdfa6bbc90524030422a5f69a6e7 English dataset Data Archive for Seabed Species and Habitats (DASSH) Data Manager 01752 633102 01752 633291 Marine Biological Association of the UK, The Laboratory, Citadel Hill Plymouth PL1 2PB dassh.enquiries@mba.ac.uk pointOfContact 2019-08-13 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4258 1992 Norfolk macrobenthos survey 1994-12-31 publication 1992-01-01 creation 1994-12-31 revision MRMLN001000000F4 http://www.dassh.ac.uk Sabellaria spinosa presence record from study into the effects of marine gravel extraction on the macrobenthos: early post-dredging recolonization. A small area of sea bed off the English east coast was experimentally dredged by a commercial suction-trailer dredger. Some 50 000 t of mixed aggregate were removed, representing 70% of the sea bed area down to an average depth of 0.3m. Results from benthic surveys undertaken at the experimental site and nearby reference site indicate that significant reductions had occured in the variety, abundance and biomass of benthic organisms as a consequence of dredging. Data Archive for Seabed Species and Habitats (DASSH) Data Manager 01752 633102 01752 633291 Marine Biological Association of the UK, The Laboratory, Citadel Hill Plymouth PL1 2PB dassh.enquiries@mba.ac.uk originator Data Archive for Seabed Species and Habitats (DASSH) Data Manager 01752 633102 01752 633291 Marine Biological Association of the UK, The Laboratory, Citadel Hill Plymouth PL1 2PB dassh.enquiries@mba.ac.uk custodian notPlanned Database Delimited Marine Environmental Data and Information Network Habitats and biotopes Land use Species distribution GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Macroalgae generic abundance in water bodies Zoobenthos taxonomy-related counts Shellfish abundance and biomass in water bodies Zoobenthos taxonomic abundance Habitat characterisation Industrial activity SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision Released under DASSH terms and conditions otherRestrictions Released under DASSH terms and conditions https://www.dassh.ac.uk/terms-and-conditions English biota planningCadastre biota Charting Progress 2 Sea Areas 2009-06-18 creation Southern North Sea 1.1155 1.1776 53.1637 53.3407 1992-01-01 1992-12-31 Kenny, Rees (1994) The effects of marine gravel extraction in the macrobenthos: early post-dredging recolonisation. Marine Pollution Bulletin. Vol. 28, 442-447. Data Archive for Seabed Species and Habitats (DASSH) Data Manager 01752 633102 01752 633291 Marine Biological Association of the UK, The Laboratory, Citadel Hill Plymouth PL1 2PB dassh.enquiries@mba.ac.uk distributor dataset A small area of sea bed off the English east coast was experimentally dredged by a commercial suction-trailer dredger. Some 50 000 tonnes of mixed aggregate were removed, representing 70% of the sea bed area down to an average depth of 0.3m. Benthic surveys undertaken at the experimental site and nearby reference site to investigate the variety, abundance and biomass of benthic organisms. A Hamon grab was used to obtain samples of benthos with a surface area of 0.25 m2.