Across Wales Bays and Banks Subtidal Soft Sediment Surveys
The aim of this data capture was to aid in the monitoring and condition assessment of subtidal soft sediment Annex I features in Wales. Subtidal benthic soft sediment repeat sampling is carried out with Special Areas of Conservation (SACs) across Wales to monitor Large Shallow Inlets and Bays, and Estuaries and Sandbank features. Some of these data are collected in conjunction with the Water Framework Directive invertebrate monitoring programme so other data from these locations or the surrounding area may be available upon request from the EA. Surveys took place in large shallow inlets and bays (Conwy Bay, Red Wharf Bay, Cardigan Bay, St Brides Bay, Carmarthen Bay) and designated subtidal sandbank features in Wales. Benthic invertebrate samples are processed by laboratories that are members of the National Marine Biological Analytical Quality Control (NMBAQC) scheme and random samples from each survey are also selected for audit by the NMBAQC contractor. Data entry into Marine Recorder database has not been validated.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS109832
- Alternative Title
-
- Across Wales Subtidal Soft Sediment Surveys
- 2013 DRAFT NRW Bays and banks subtidal sediment surveys MRCCW30000000085
- 2012 DRAFT CCW/SOS Across Wales Subtidal Soft Sediment Surveys [Banks and bays] MRCCW30000000073
- 2011 CCW / EA Banks and Bays subtidal sediment surveys MRCCW30000000062
- 2010 CCW / EA Banks and Bays subtidal sediment surveys MRCCW30000000061
- 2009 CCW / EA Banks and Bays subtidal sediment surveys MRCCW3000000005A
- 2008 CCW / EA Banks and Bays subtidal sediment surveys MRCCW30000000059
- 2007 CCW / EA Bays and Banks subtidal sediment surveys MRCCW30000000051
- Across Wales Bays and Banks Monitoring
- Arolygon ar Waddodion Meddal Islanwol ar draws Cymru
- Metadata Language
- English
- Lineage
-
Monitoring work is carried out at the same sample station by the Environment Agency and Briggs Marine. Sampling is carried out every three years on in a rolling cycle. Previous projects that this work builds on was carried out by CCW. Data captured: Abundance (and in some cases biomass) of benthic invertebrates (per 0.1m2) and granulometry. Supporting determinants are: National Grid References, depth of sample relative to chart datum, salinity (if survey is in an estuary) and sample depth (in grab). Digital images are also taken of each sample both in the grab and after sieving and these form part of the audit trail for each sample. All samples are collected using either a Day grab or a Long arm Van Veen grab (both 0.1m2). Benthic invertebrate samples are sieved over a 0.5 mm mesh, some samples have been split into separate 0.5 mm and 1 mm fractions in order to maintain comparability with historic data sets.
- Additional Information
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The data is also available through UKDMOS website; http://www.ukdmos.org/v_ukdmos_edios/result.asp
- Dataset Reference Date (Publication)
- 2015-12-31
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
- benthic boundary layer
Vertical Extent
- Minimum value (metres)
- 0
- Maximum value (metres)
- 57
- Vertical CRS
Distribution
- Format Type and Description
-
-
Documents
()
- Specification
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[A] Sample stations (metadata) are held as MapInfo GIS layers / ArcGIS files. [B] Species data and particle size analysis data is held as excel spreadsheets. [C] Species and habitat data is also available in Marine Recorder: - MRCCW30000000051 - MRCCW30000000059 - MRCCW3000000005A - MRCCW30000000061 - MRCCW30000000062 [D] PSA data to be transferred in future.
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Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
Monitoring work is carried out at the same sample station by the Environment Agency and Briggs Marine. Sampling is carried out every three years on in a rolling cycle. Previous projects that this work builds on was carried out by CCW. Data captured: Abundance (and in some cases biomass) of benthic invertebrates (per 0.1m2) and granulometry. Supporting determinants are: National Grid References, depth of sample relative to chart datum, salinity (if survey is in an estuary) and sample depth (in grab). Digital images are also taken of each sample both in the grab and after sieving and these form part of the audit trail for each sample. All samples are collected using either a Day grab or a Long arm Van Veen grab (both 0.1m2). Benthic invertebrate samples are sieved over a 0.5 mm mesh, some samples have been split into separate 0.5 mm and 1 mm fractions in order to maintain comparability with historic data sets.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- sediment infauna
- sediment sample
- sediments
- benthic marine communities
- benthic marine habitats
- benthic species
- Subtidal
- sandbanks
- inlets
- estuaries (see also specific estuary names)
- monitoring (see specific types of monitoring eg. woodland monitoring)
- Special Area of Conservation Monitoring
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Zoobenthos taxonomic abundance
- Sediment grain size parameters
- Type
- Theme
Citation
- Date (Revision)
- 2021-01-06
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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This data is jointly owned by CCW and Environment Agency. There are no access restrictions to this data. CCW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CCGC/CCW and Environment Agency There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and the copyright of CCW/Environment Agency and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313039383332 XML
- Metadata Language
- English
- Parent Identifier
-
Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501
- Resource type
- Dataset
- Metadata Date
- 2024-12-09T12:37:58.712Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0