Effects of the Sea Empress oil spillage on sensitive sessile marine invertebrate communities

  • English
  • wel
  • All

The grounding of the Sea Empress at the mouth of Milford Haven in February 1996 resulted in oil polluted shorelines from the south of St Brides Bay to Pendine Sands. This dataset contains the results of an investigation into the effects of the oiling and its clean-up on sensitive sessile intertidal communities of marine invertebrates and the results of an investigation into possible effects of the oil/clean up on the biology of Alcyonidium species at Dale and Angle. The purpose of these investigations were to survey the lower shore sessile fauna on the north side of St Catherine's Island, Tenby documenting the present composition of the sessile fauna, to assess what changes had occurred since the 1950s and whether any of these might be attributable to the oiling an clean up following the Sea Empress grounding; and investigate the effect of the oil on the reproduction and recruitment of Alcyonidium species (Bryozoa) on Fucus serratus at Dale and Angle in Milford Haven and at control sites in Solva Harbour.

Identification

Dynodydd
Identifier
NRW_DS110219
Teitl Amgen
Alternative Title
  • 1996 Putron PMSA -Sea Empress oil spill effects on sessile marine invertebrate survey MRCCW10000000090
  • Effeithiau damwain olew y Sea Empress ar gymunedau creaduriaid di-asgwrn-cefn morol digoes a sensitif
Laith Metadata
Metadata Language
English
Lineage

Five 0.2 m x 0.2 m permanent quadrats were established along a transect extending for 82 m on the north side of St Catherine's Island. Percentage cover of conspicuous species calculated using image analysis technique, the growth and regression of the dominant ascidian Morchellium argus was calculated as were the varying cover and degree of fragmentation of the sponges Hymeniacidon perleve and Halichondria panacea. Sessile fauna list compiled by examining the shore during spring tides. In addition to this a survey was done which followed the reproduction and growth of the Alcyonidium spp over the year, inclusive from settlement to reproductive maturity of a cohort. It took area measurements of the Alcyonidium colonies to monitor growth rates and used image analysis package to determine colony areas for growth data.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
1998-08-31
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  University of Wales Swansea. Marine and Environmental Research Group
Singleton Park, Swansea, SA2 8PP, Wales
http://www.swan.ac.uk/
 

Extent

Extent

Hyd
Geographic Extent
SIR BENFRO - PEMBROKESHIRE
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword

benthic boundary layer
 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Documents ()

    Specification

    [A] Report in PDF format [B] Marine Recorder survey MRCCW10000000090

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
Conformity
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
Explanation
Degree
false
Lineage

Five 0.2 m x 0.2 m permanent quadrats were established along a transect extending for 82 m on the north side of St Catherine's Island. Percentage cover of conspicuous species calculated using image analysis technique, the growth and regression of the dominant ascidian Morchellium argus was calculated as were the varying cover and degree of fragmentation of the sponges Hymeniacidon perleve and Halichondria panacea. Sessile fauna list compiled by examining the shore during spring tides. In addition to this a survey was done which followed the reproduction and growth of the Alcyonidium spp over the year, inclusive from settlement to reproductive maturity of a cohort. It took area measurements of the Alcyonidium colonies to monitor growth rates and used image analysis package to determine colony areas for growth data.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • Sea Empress
  • St Catherine's Island
  • Tenby
  • Milford Haven
  • marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore)
  • invertebrates (see also specific species)
  • marine invertebrates
  • communities
  • marine and freshwater inventory
  • sessile marine invertebrates
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2023-12-31
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
  • Pollution events
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Adolygu)
Date (Revision)
2021-01-06
Code
geonetwork.thesaurus.external.theme.rdf+xml

Allweddair
Keywords

Integrated Public Sector Vocabulary
  • oil spillage
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Adolygu)
Date (Revision)
2013-04-03
Code
geonetwork.thesaurus.external.theme.subjects
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

NRW Related Title

An appraisal of the effects of the Sea Empress oil spillage on sensitive sessile marine invertebrate communities
 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
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

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CNC/NRW 1998 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

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313130323139 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Pembrokeshire Marine Species Atlas (PMSA)

NRW_DS24328
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T09:38:40.953Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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