Welsh Sandbank Survey: Fish Stomach Content, Fish Epibenthic Survey, and Data Analysis (2001)
Sandbanks are listed as an Annex 1 habitat that requires conservation measures under the European Union Habitats Council of the European Communities (1992). Sandbanks can be categorised either by sediment type or by topography. The different sediments Annex I sandbanks can consist of are sands, gravelly sands and muddy sands. This study was designed to examine the fish and epifaunal biota of sandbanks and formed part of a larger collaborative survey in which the hyperbenthos and infauna were also sampled. As a result of their unique physical regime, sandbanks may hold their own distinct flora and fauna that is particularly well adapted to such conditions or that uses these habitats in an opportunistic manner (e.g. at slack water). However, the extent to which sandbanks are characterised by a distinct set of taxa remains unknown.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS110023
- Alternative Title
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- 2001 CCW cSAC sandbanks survey Zooplankton analysis MRCCW30000000037
- 2001CCW/ NMGW Macrofaunal Survey of Welsh Sandbanks MRCCW30000000008
- 2001 CCW/SOS Welsh sandbanks fish and epibenthos survey MRCCW30000000038
- Arolwg banciau tywod Cymru 2001:cynnwys boliau pysgod, dadansoddiad o ddata, arolwg epibenthig o bysgod
- Metadata Language
- English
- Lineage
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A total of 11 different sandbanks were chosen as potential seabed features that typically represent sandbank habitats as defined by the interpretation manual of European Habitats (EUR15/2) of which 10 were sampled in the present study (extensions of shallow coastal sediments adjacent to the coastline, distinct sandbanks that are distinct from the surrounding seabed features and sediments). Hyperbenthic, infaunal, epifaunal and fish samples were collected at each site from the RV Prince Madog (34.9 m l.o.a.). At each site, five replicate tows were made with a 2 m beam trawl fitted with a chain matrix and 1 cm square meshed net with a 1 mm codend liner. The 2 m beam trawl was towed at a speed of 1.5 to 2 knots for a standard duration of 5 minutes. At each site, sediment samples were taken using a Van Veen grab and immediately frozen on board. In the laboratory, particle size fractions, percentage organic matter and calcium carbonate were determined and the data catagorised into the following sediment fractions: mud, muddy sand, sand, silt, carbonates and organic matter. At three sites (Devil's Ridge, west of Newquay and Bastram Shoal) plaice Pleuronectes platessa were collected for the purpose of dietary analyses.
- Additional Information
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Kaiser MJ. 2004. Sandbank survey: fish stomach content, fish epibenthic survey data analysis. Countryside Council for Wales Science Report No. 610. Bangor
- Dataset Reference Date (Publication)
- 2004-01-31
Temporal Extent
- Begin date
- 2001-07-31
- End date
- 2001-08-31
- Topic category
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- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
- benthic boundary layer
Distribution
- Format Type and Description
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Documents
()
- Specification
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[A] Report (MS Word) [B] Data in spreadsheet format (MS Excel) and on Marine Recorder (survey numbers MRCCW30000000008, MRCCW30000000037, MRCCW30000000038) [C] Video tape of the methods used
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Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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A total of 11 different sandbanks were chosen as potential seabed features that typically represent sandbank habitats as defined by the interpretation manual of European Habitats (EUR15/2) of which 10 were sampled in the present study (extensions of shallow coastal sediments adjacent to the coastline, distinct sandbanks that are distinct from the surrounding seabed features and sediments). Hyperbenthic, infaunal, epifaunal and fish samples were collected at each site from the RV Prince Madog (34.9 m l.o.a.). At each site, five replicate tows were made with a 2 m beam trawl fitted with a chain matrix and 1 cm square meshed net with a 1 mm codend liner. The 2 m beam trawl was towed at a speed of 1.5 to 2 knots for a standard duration of 5 minutes. At each site, sediment samples were taken using a Van Veen grab and immediately frozen on board. In the laboratory, particle size fractions, percentage organic matter and calcium carbonate were determined and the data catagorised into the following sediment fractions: mud, muddy sand, sand, silt, carbonates and organic matter. At three sites (Devil's Ridge, west of Newquay and Bastram Shoal) plaice Pleuronectes platessa were collected for the purpose of dietary analyses.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- sandbanks
- sediment epifauna
- fish (fishes) (see also specific species)
- seabeds (sea beds)
- multivariate analysis
- Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
- marine and freshwater inventory
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Shellfish morphology, age and physiology
- Type
- Theme
Citation
- Date (Revision)
- 2021-01-06
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
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Sandbank survey : fish stomach content, fish epibenthic survey data analysis
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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There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.y.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313130303233 XML
- Metadata Language
- English
- Parent Identifier
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Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501
- Resource type
- Dataset
- Metadata Date
- 2024-12-09T12:31:29.025Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0