EMODnet product catalogue
2012 Natural England (NE) The Wash and North Norfolk Coast SAC - Baseline Monitoring Survey of Large Shallow Inlet and Bay
This report describes the results from an interdisciplinary field survey aimed at identifying the location, extent and condition of Annex I habitat features in the Large Shallow Inlet and Bay of The Wash and North Norfolk Coast SAC. The habitat features of interest are (i) subtidal boulder and cobble communities, and (ii) Sabellaria spinulosa reefs. Information presented is intended to serve as a baseline for future monitoring of the identified features. Acoustic sidescan data were acquired from selected areas within the broader SAC area, together with grountruthing samples representative of distinct acoustic signatures. Groundtruthing techniques included the acquisition of video and still images of the seabed and of sediment and faunal sample.
Of particular interest was an area to the north of the eastern Well survey area between 10 and 47 m deep which exhibited a high density of hard and rugged features, confirmed as boulder and cobble reef on chalk bedrock by the photographic record. This area also harboured a high number of epifaunal taxa not observed in the surrounding sediments. The area has been delimited and covers approximately 470 ha. The acoustic record did not reveal the occurrence of areas of Sabellaria spinulosa reef. Infaunal samples did collect representatives of this species but in densities too small to be considered as reef. At most sites where S. spinulosa was observed, the abundance and diversity of the whole infaunal assemblage was higher than in areas where S. spinulosa was absent. Analysis of both infaunal and epifaunal assemblages revealed several distinct communities throughout the survey area.
Simple
- Alternate title
-
GB100249
- Date (Publication)
- 2012-03-22
- Citation identifier
- http://www.naturalengland.org.uk / NE_0369
- Point of contact
-
Organisation name Individual name Electronic mail address Role Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory
Christopher Barrio Frojan
Originator Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory
Bill Meadows
Originator Natural England
Peter Walker
Custodian
- Maintenance and update frequency
- Continual
- Keywords
-
SeaDataNet P021 parameter discovery vocabulary
- Use limitation
-
Data is freely available for research and commercial use providing that the originators are acknowledged in any publications produced
- Access constraints
- Other restrictions
- Other constraints
-
No restrictions to public access
- Language
- English
- Topic category
-
- Geoscientific information
- Biota
- Imagery base maps earth cover
- Geographic identifier
-
Southern North Sea
Charting Progress 2 Sea Areas 2009-06-18
))
- Begin date
- 2011-01-01
- End date
- 2021-02-10 After
- Reference system identifier
- urn:ogc:def:crs:EPSG::32631
- Distribution format
-
- OnLine resource
-
Protocol Linkage Name OGC:WMS
https://ows.emodnet-seabedhabitats.eu/geoserver/emodnet_view_maplibrary/wms? gb100249
OGC:WFS
https://ows.emodnet-seabedhabitats.eu/geoserver/emodnet_open_maplibrary/wfs? gb100249
WWW:LINK-1.0-http--link
https://files.emodnet-seabedhabitats.eu/data/EMODnetSBHsurvey_GB100249.zip EMODnet Seabed Habitats download
- Hierarchy level
- Dataset
- Statement
-
This report describes the results from an interdisciplinary field survey aimed at identifying the  location, extent and condition of Annex I habitat features in the Large Shallow Inlet and Bay of The  Wash and North Norfolk Coast SAC.  The habitat features of interest are (i) subtidal boulder and  cobble communities, and (ii) Sabellaria spinulosa reefs.  Information presented is intended to serve  as a baseline for future monitoring of the identified features.  Acoustic sidescan data were acquired from selected areas within the broader SAC area, together  with grountruthing samples representative of distinct acoustic signatures.  Groundtruthing  techniques included the acquisition of video and still images of the seabed and of sediment and  faunal samples.  All samples were processed according to common standards and protocols.  Analysis of acoustic data revealed several distinct acoustic signatures, which have been catalogued,  described and matched with the observed sedimentary conditions.  Of particular interest was an  area to the north of the eastern Well survey area between 10 and 47 m deep which exhibited a high  density of hard and rugged features, confirmed as boulder and cobble reef on chalk bedrock by the  photographic record.  This area also harboured a high number of epifaunal taxa not observed in the  surrounding sediments.  The area has been delimited and covers approximately 470 ha.  The acoustic record did not reveal the occurrence of areas of Sabellaria spinulosa reef.  Infaunal  samples did collect representatives of this species but in densities too small to be considered as reef.   At most sites where S. spinulosa was observed, the abundance and diversity of the whole infaunal  assemblage was higher than in areas where S. spinulosa was absent.   Analysis of both infaunal and  epifaunal assemblages revealed several distinct communities throughout the survey area.  Recommendations are made on the possible alternatives for future monitoring of the area given the  limitations in survey techniques that are suitable for each habitat type. 
Metadata
- File identifier
- 0ab20f63-370e-4fd2-a454-527e94777cfd XML
- Metadata language
- English
- Hierarchy level
- Dataset
- Date stamp
- 2021-03-08T12:57:01
- Metadata standard name
-
MEDIN Discovery metadata standard
- Metadata standard version
-
2.3.8
- Metadata author
-
Organisation name Individual name Electronic mail address Role Natural England
George Perry
Point of contact
)))
