Assessment of Sublittoral Epibenthic Rock Communities and Species Following the Sea Empress Oil Spill
The Sea Empress oil spill in February 1996 affected the water column, seabed and shores of south Pembrokeshire. Several rocky subtidal sites in and around the entrance to Milford Haven were studied at the time of the spill. This datasets is made up of the results obtained during a subtidal survey of South Pembrokeshire 16 months after the Sea Empress oil spill. The survey aimed to examine the open coast of South Pembrokeshire sites close the entrances of Milford Haven, as far eastwards as Caldey Island. The objective of this work was to revisit previously surveyed bedrock areas which may be have been subjected to elevated water column hydrocarbon load in order to investigate their community diversity, richness and condition.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS110140
- Alternative Title
-
- CCW Pembrokeshire 'Sea Empress' sublittoral rock survey 1997 JNCCMNCR40000777
- Metadata Language
- English
- Lineage
-
The sites were investigated using diving techniques and the following tasks were carried out:
- Site and Habitat Descriptions using standard Phase 2 Marine Nature Conservation Review (MNCR) survey techniques. Diving was carried out using standard SCUBA apparatus.
- Photography of biotopes and close up photographs of selected species. Underwater photography was achieved using land cameras in underwater housings and a purpose built submersible Nikonos camera.
- Recording of observations which maybe oil pollution related including observations on the presence and abundance of small mobile custacea. Careful observations were made, looking for contamination in any sediments or on rocky surfaces, noting the health of the communities, any signs which may be related to oil pollution e.g. bleaching of algae, dead bivalves and other animals and conspicuous absence of species from the communities.
- Collection samples of the mussel, Mytilus edulis, at sites where it was encountered for hydrocarbon analysis. Collections of specimens including algae were made at each site. Where Mytilus edulis was encountered, samples were taken and frozen the same day. These samples were passed on to CEFAS (Centre for Environment, Fisheries and Aquaculture Science) in Burnham-on-Crouch for total hydrocarbon analysis.
When diving in the region of the Milford Haven waterway, the Castlemartin Range and the Manorbier Artillery Range, liaison with the appropriate authorities was undertaken prior to diving.
- Additional Information
-
Rostron, D.M. and Bunker, F.St.P.D (1997). An Assessment of Sublittoral Epibenthic Rock Communities & Species following the Sea Empress Oil Spill. A report to the Countryside Council for Wales from Marine Seen & Sub-Sea Survey.
- Dataset Reference Date (Publication)
- 1997-06-30
Temporal Extent
- Begin date
- 1997-05-31
- End date
- 1997-06-15
- Topic category
-
- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
- circalittoral
Distribution
Distribution
- Format Type and Description
-
-
Documents
(
)
- Specification
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[A] Report (MS Word and PDF-format)
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Database
(
Marine Recorder
)
- Specification
-
[B] Survey results contained in JNCCs copy of Marine Recorder (survey number JNCCMNCR40000777)
-
Documents
(
)
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
The sites were investigated using diving techniques and the following tasks were carried out:
- Site and Habitat Descriptions using standard Phase 2 Marine Nature Conservation Review (MNCR) survey techniques. Diving was carried out using standard SCUBA apparatus.
- Photography of biotopes and close up photographs of selected species. Underwater photography was achieved using land cameras in underwater housings and a purpose built submersible Nikonos camera.
- Recording of observations which maybe oil pollution related including observations on the presence and abundance of small mobile custacea. Careful observations were made, looking for contamination in any sediments or on rocky surfaces, noting the health of the communities, any signs which may be related to oil pollution e.g. bleaching of algae, dead bivalves and other animals and conspicuous absence of species from the communities.
- Collection samples of the mussel, Mytilus edulis, at sites where it was encountered for hydrocarbon analysis. Collections of specimens including algae were made at each site. Where Mytilus edulis was encountered, samples were taken and frozen the same day. These samples were passed on to CEFAS (Centre for Environment, Fisheries and Aquaculture Science) in Burnham-on-Crouch for total hydrocarbon analysis.
When diving in the region of the Milford Haven waterway, the Castlemartin Range and the Manorbier Artillery Range, liaison with the appropriate authorities was undertaken prior to diving.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
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NRW Thesaurus
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- South Pembrokeshire
- Sea Empress
- algae
- underwater photography
- bleaching
- marine surveys (intertidal & subtidal surveys) (littoral survey) (sublittoral surveys) (bathymetric survey) (see also marine monitoring and MNCR)
- Caldy (Caldey)
- Milford Haven
- hydrocarbons
- community diversity
- rock communities
- sublittoral epibenthic species
- oil pollution
- community richness
- community condition
- marine and freshwater inventory
- Pembrokeshire (county pre 1974)( county since 4/96)
- pollution (see also specific types of pollution eg. oil pollution)
- bedrock
- Type
- Theme
Citation
- Date (Publication)
- 2024-06-19
Keywords
-
SeaDataNet Parameter Discovery Vocabulary
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- Habitat characterisation
- Zoobenthos generic abundance
- Zoobenthos taxonomic abundance
- Type
- Theme
Citation
- Date (Publication)
- 2024-06-19
Keywords
-
IPSV Subjects List
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- Oil spillage
- Type
- Theme
Citation
- Date (Publication)
- 2020-11-18
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
-
An assessment of sublittoral epibenthic rock communities and species following the Sea Empress oil spill
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
-
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 1997 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.
Attribution Statement
- Other constraints
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Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Licence
- Other constraints
- Open Government Licence
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313130313430 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
- 2025-01-02T17:02:49.399Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0