The Impact of the Sea Empress Oil Spill on the Prosobranch Mollusc Paludinella littorina
In March 1996 the Sea Empress Environmental Evaluation Committee (SEEEC) was set up by the government to assess the impact of the Sea Empress oil spill on the environment. This contract was issued as part of the SEEEC monitoring programme designed to evaluate the impact of oil from the Sea Empress on local marine life. Data collected in order to ascertain whether Paludinella littorina still lived at its known sites at Broad Haven and on Caldey Island after the Sea Empress oil spill and to obtain more information on the extent and density of the populations. The objectives were to: 1. Ascertain whether Paludinella littorina is still living at its known sites at Broad Haven and on Caldey Island and to obtain more information on the extent and density of the populations. 2. Attempt an assessment of the impact of oil damage, if any and subsequent recovery, to habitats at known Paludinella littorina sites. 3. Locate and investigate other sites for Paludinella littorina on Caldey Island. 4. Evaluate methods for monitoring and recommend a protocol for future monitoring work.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS110101
- Alternative Title
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- 1996 Killeen PMSA -Sea Empress oil spill impact on Palundinella littorina survey MRCCW10000000089
- Effaith gollyngiad olew'r Sea Empress ar y molwsg cloriog Paludinella littorina
- Metadata Language
- English
- Lineage
-
Survey work for the present contract was focused at the two known Paludinella localities: Broad Haven near Bosherston, and Caldey Island. At Broad Haven this involved close examination of a north-west facing wall within a cave where snails had been seen on the previous survey. Additional surfaces further inside the cave and towards the exterior walls and entrance were also searched. On Caldey Island two sites investigated in 1994 were revisited and additional sites of potential habitat on the island were examined. During fieldwork photographs were taken of sites including overall views and more focused pictures of habitat. It was not necessary to remove any animals or algae from the field for laboratory investigation. Increased monitoring efforts and impact assessment following the Sea Empress oil spill. This dataset contributed to the Pembrokeshire Marine Species Atlas, see separate metadata entry. The species formed the basis of survey work carried out in 1994 to assess the population at its known Welsh site at Broad Haven.
- Dataset Reference Date (Publication)
- 1997-03-31
Temporal Extent
- Begin date
- 1996-03-10
- End date
- 1996-03-13
- Topic category
-
- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
- benthic boundary layer
Distribution
- Format Type and Description
-
-
Database
()
- Specification
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[A] Report (MS word and PDF-format) [B] Marine Recorder survey MRCCW10000000089
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Database
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
Survey work for the present contract was focused at the two known Paludinella localities: Broad Haven near Bosherston, and Caldey Island. At Broad Haven this involved close examination of a north-west facing wall within a cave where snails had been seen on the previous survey. Additional surfaces further inside the cave and towards the exterior walls and entrance were also searched. On Caldey Island two sites investigated in 1994 were revisited and additional sites of potential habitat on the island were examined. During fieldwork photographs were taken of sites including overall views and more focused pictures of habitat. It was not necessary to remove any animals or algae from the field for laboratory investigation. Increased monitoring efforts and impact assessment following the Sea Empress oil spill. This dataset contributed to the Pembrokeshire Marine Species Atlas, see separate metadata entry. The species formed the basis of survey work carried out in 1994 to assess the population at its known Welsh site at Broad Haven.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
-
- Sea Empress
- impact assessment
- Broad Haven
- Caldy (Caldey)
- oil pollution
- pollution (see also specific types of pollution eg. oil pollution)
- environmental recovery
- habitats (see also specific types of habitats)
- paludinella littorina
- lagoon snail
- marine and freshwater inventory
- population density
- prosobranch mollusc
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Habitat characterisation
- Type
- Theme
Citation
- Date (Revision)
- 2021-01-06
Keywords
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
-
Assessment of the impact of the Sea Empress oil spill on the prosobranch mollusc Paludinella littorina
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 Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313130313031 XML
- Metadata Language
- English
- Parent Identifier
-
Pembrokeshire Marine Species Atlas (PMSA)
NRW_DS24328
- Resource type
- Dataset
- Metadata Date
- 2024-12-09T12:33:26.579Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0