4f4c4942-4343-5764-6473-313130323133 English Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2024-05-31T09:42:47.777Z NRW 1.0 wel British National Grid (EPSG::27700) Polycyclic Aromatic Hydrocarbon (PAH) and N-Alkane Residues in Seabird Eggs after the Grounding of the Sea Empress. Polycyclic Aromatic Hydrocarbon (PAH) and N-Alkane Residues in Seabird Eggs after the Grounding of the Sea Empress. Gweddillion n-alcan a hydrocarbon aromatig amlgylchredol mewn wyau adar mor ar ol damwain olew y Sea Empress. 1997-10-30 NRW_DS110213 The grounding of the Sea Empress in February 1996 resulted in large-scale oil pollution of the water around the Pembrokeshire coast and its associated island seabird colonies. The accident occurred at about the time that seabirds were returning to their breeding colonies. Therefore, it was possible that breeding birds might transfer oil directly to their eggs through contact with oiled nesting material, feathers and feet, or oral ingestion of sub-lethal amounts of hydrocarbons and subsequent transfer to yolk. Exposure of adult birds and eggs to crude oil or polycyclic aromatic hydrocarbons (PAHs), which are present in crude oil, can have adverse effects on egg structure and quality, embryo development and hatching success. This dataset contains the results of an investigation into the PAH and n-alkane content of seabird eggs on the coast of Pembrokeshire following the Sea Empress oil spill. The aim of the study was to investigate whether there was any evidence of hydrocarbon contamination of seabird eggs resulting from the Seam Empress spill. The grounding of the Sea Empress in February 1996 resulted in large-scale oil pollution of the water around the Pembrokeshire coast and its associated island seabird colonies. The accident occurred at about the time that seabirds were returning to their breeding colonies. Therefore, it was possible that breeding birds might transfer oil directly to their eggs through contact with oiled nesting material, feathers and feet, or oral ingestion of sub-lethal amounts of hydrocarbons and subsequent transfer to yolk. Exposure of adult birds and eggs to crude oil or polycyclic aromatic hydrocarbons (PAHs), which are present in crude oil, can have adverse effects on egg structure and quality, embryo development and hatching success. This dataset contains the results of an investigation into the PAH and n-alkane content of seabird eggs on the coast of Pembrokeshire following the Sea Empress oil spill. The aim of the study was to investigate whether there was any evidence of hydrocarbon contamination of seabird eggs resulting from the Seam Empress spill. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Institute of Terrestrial Ecology (ITE) Care of./ Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire, PE17 2LS R.Fuller@ceh.ac.uk http://www.nmw.ac.uk/ite Countryside Council for Wales (CCW) Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en sd">Species distribution Species distribution GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Sea Empress Pembrokeshire Coast birds (see also specific species,groups eg.seabirds and bird studies) oiled birds cormorants phalacrocorax carbo choughs pyrrhocorax pyrrhocorax marine and freshwater inventory NRW Thesaurus NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords Bird reproduction Pollution events SeaDataNet Parameter Discovery Vocabulary SeaDataNet Parameter Discovery Vocabulary 2021-01-06 geonetwork.thesaurus.external.theme.rdf+xml oil spillage Integrated Public Sector Vocabulary Integrated Public Sector Vocabulary 2013-04-03 geonetwork.thesaurus.external.theme.subjects Part of this dataset is sensitive and restricted as it contains data exempt from general release under EIR. Sensitive data must be kept confidential; general release is not permitted due to risk of harm to the environment or third parties. The sensitive data is detailed location of nest sites of Pyrrhocorax pyrrhocorax. no limitations © CNC/NRW Data may be re-used under provision and in line with the terms of a NRW licence and NRWs guidance on Ecological data exempt from general release. English biota SeaVoX Vertical Co-ordinate Coverages SeaVoX Vertical Co-ordinate Coverages 2021-01-06 benthic boundary layer SIR BENFRO - PEMBROKESHIRE -5.32946922 -4.65311769 51.57755737 51.77630347 1996-11-13 1996-11-14 Polycyclic aromatic hydrocarbon and n-alkane residues in seabird eggs after the grounding of the Sea Empress Documents Report in PDF format (NB Report won't open in Adobe Acrobat or Word) 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 2010-12-08 false Increased monitoring efforts and impact assessment following the Sea Empress oil spill. The only data associated with this project is held within the report. The methods of data capture involved measuring the level of contaminants within the breeding populations. N-alkane and PAH concentrations in the eggs of carious coastal species from oil-contaminated breeding colonies around the Pembrokeshire coast. The levels of contamination were compare with those detected in the eggs of the same or similar species, which were collected from the Isle of May, off the NE coast of Britain. The Isle of May was unaffected by the Sea Empress spill. A sample of weather oil from the Sea Empress was also analysed for n-alkane and PAH levels to obtain a fingerprint of the oil that could be compared with residues detected in eggs. Increased monitoring efforts and impact assessment following the Sea Empress oil spill. The only data associated with this project is held within the report. The methods of data capture involved measuring the level of contaminants within the breeding populations. N-alkane and PAH concentrations in the eggs of carious coastal species from oil-contaminated breeding colonies around the Pembrokeshire coast. The levels of contamination were compare with those detected in the eggs of the same or similar species, which were collected from the Isle of May, off the NE coast of Britain. The Isle of May was unaffected by the Sea Empress spill. A sample of weather oil from the Sea Empress was also analysed for n-alkane and PAH levels to obtain a fingerprint of the oil that could be compared with residues detected in eggs.