Effaith gollyngiad olew'r Sea Empress ar y molwsg cloriog 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.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS110101
- Teitl Amgen
-
- 1996 Killeen PMSA -Sea Empress oil spill impact on Palundinella littorina survey [MRCCW10000000089]
- Laith Metadata
- English
- Datganiad
-
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.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 1997-03-31
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
-
benthic boundary layer
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
(
)
- Math
-
[A] Report (MS word and PDF-format)
-
Database
(
)
- Math
-
[B] Marine Recorder survey MRCCW10000000089
-
Documents
(
)
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Eglurhad
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
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.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- impact assessment
- lagoon snail
- population density
- marine and freshwater inventory
- prosobranch mollusc
- pollution (see also specific types of pollution eg. oil pollution)
- Broad Haven
- Caldy (Caldey)
- oil pollution
- Sea Empress
- environmental recovery
- paludinella littorina
- habitats (see also specific types of habitats)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2025-01-08
Allweddair
-
SeaDataNet Parameter Discovery Vocabulary
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
Allweddair
-
IPSV Subjects List
-
- Oil spillage
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2020-11-18
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Assessment of the impact of the Sea Empress oil spill on the prosobranch mollusc Paludinella littorina
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© 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
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313130313031 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Pembrokeshire Marine Species Atlas (PMSA)
NRW_DS24328
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-03-03T11:14:21.825Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0