Intertidal Monitoring of Ophelia bicornis in Carmarthen Bay and Estuaries Special Area of Conservation (SAC) in 2004
The purpose of this data capture was to determine whether Ophelia bicornis found at two sites within the lower Loughor estuary during Phase 1 surveys carried out by Countryside Council for Wales (CCW) were still present. The polychaete Ophelia bicornis is known from only a few locations in the UK and is therefore of national importance. It is particularly vulnerable to changes in the granulometric composition of the sediment, pollution and trampling. The purpose of this data capture to determine whether O. bicornis found at two sites within the lower Loughor estuary during Phase 1 surveys carried out by CCW were still present.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS102006
- Alternative Title
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- 2004 CCW / IECS Carmarthen Bay and Estuaries SAC Ophelia bicornis monitoring MRCCW30200000011
- Monitro Rhynglanwol: Ophelia bicornis yn ACA Bae Caerfyrddin ac Aberoedd
- Metadata Language
- English
- Lineage
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Ophelia bicornis found at two sites within the lower Loughor estuary during CCW intertidal Phase 1 surveys. Quadrat sampling was carried out in areas of suitable sediment at 25 m intervals along four 75 m transects spaced 25 m apart. At each sample site a GPS position and photograph were taken and sediment was removed (to a depth of 20cm) from a 50 x 50 cm area and passed through a 0.5 mm sieve. Any animals retained in the sieve were identified and returned to the sediment. Any Ophelia bicornis found were identified and an example preserved and returned to the laboratory for formal identification. All other samples were returned to the sediment. Confidence in this dataset is high. Professional taxonomic experts were used to confirm the identity of polychaetes collected.
- Dataset Reference Date (Publication)
- 2008-12-31
Extent
Extent
- Geographic Extent
- ABERTAWE - SWANSEA
- 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] Digital versions of the contract report: Microsoft Word document(s); and an equivalent Adobe Portable Document Format version. [B] MapInfo GIS layer in MapInfo Native format (Tables): - Position of survey stations. - Translations from the above MapInfo Tables are retained in ESRI Shapefile and MapInfo Interchange formats. [C] Excel spreadsheets with survey station physical and species data. [D] Photographs of the survey stations and of Ophelia bicornis (microscope). [E] Marine Recorder file: MRCCW30200000011
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Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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Ophelia bicornis found at two sites within the lower Loughor estuary during CCW intertidal Phase 1 surveys. Quadrat sampling was carried out in areas of suitable sediment at 25 m intervals along four 75 m transects spaced 25 m apart. At each sample site a GPS position and photograph were taken and sediment was removed (to a depth of 20cm) from a 50 x 50 cm area and passed through a 0.5 mm sieve. Any animals retained in the sieve were identified and returned to the sediment. Any Ophelia bicornis found were identified and an example preserved and returned to the laboratory for formal identification. All other samples were returned to the sediment. Confidence in this dataset is high. Professional taxonomic experts were used to confirm the identity of polychaetes collected.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- Carmarthen Bay
- Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
- marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore)
- Special Areas of Conservation (SAC) - SAC monitoring
- Broughton Bay
- Llanrhidian Sands,Burry Inlet
- Ophelia bicornis
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Zoobenthos taxonomy-related counts
- 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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Intertidal Monitoring of ophelia bicornis in Carmarthen Bay and Estuaries SAC in 2004
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 to 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 2008. 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 NRW's copyright, 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
- 4f4c4942-4343-5764-6473-313032303036 XML
- Metadata Language
- English
- Parent Identifier
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Across Wales Intertidal Monitoring Survey
NRW_DS109834
- Resource type
- Dataset
- Metadata Date
- 2024-12-09T12:33:29.52Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0