4f4c4942-4343-5764-6473-313130303939
eng
dataset
Natural Resources Wales (NRW)
0300 065 3000
Maes-y-Ffynnon
LL57 2DW
enquiries@naturalresourceswales.gov.uk
pointOfContact
2018-07-03
MEDIN Discovery Metadata Standard
Version 2.3.8
urn:ogc:def:crs:EPSG::BNG
OGP
Status and Breeding of Cormorants Phalacrocorax carbo in Wales (1996-1997): The Effect of the Sea Empress Oil Spill
Statws a nythu mulfrain Phalacrocorax carbo yng Nghymru: effaith gollyngiad olew'r Sea Empress
1997-11-30
publication
1997-11-30
revision
110099
https://naturalresources.wales
The Sea Empress Environmental Evaluation Committee (SEEEC) and the Countryside Council for Wales (CCW) commissioned various studies of the effects of the oil spill on the wildlife of Pembrokeshire. This dataset contains the results of work carried out to investigate the effects of the spill on Cormorants Phalacrocorax carbo. In 1996 the project aimed to carry out a survey of the numbers, distribution and breeding performance of cormorants breeding in Wales, including detailed case studies at colonies in the area contaminated by oil in south and west Pembrokeshire. Monitoring of numbers and breeding performance was continued in 1997 with detailed studies of breeding phenology and breeding success at two South Pembrokeshire colonies (St Margaret's Island and Green Scar). Data was
used to assess the numbers and distribution of Cormorants breeding in Wales; and to investigate the breeding performance of Cormorants in Wales, including detailed case studies at colonies in the area contaminated by oil in south and west Pembrokeshire.
Natural Resources Wales (NRW)
0300 065 3000
Maes-y-Ffynnon
LL57 2DW
enquiries@naturalresourceswales.gov.uk
custodian
Countryside Council for Wales (CCW)
0300 065 3000
Countryside Council for Wales
Maes y Ffynnon
LL57 2DW
enquiries@naturalresourceswales.gov.uk
originator
notPlanned
Documents
Species distribution
GEMET - INSPIRE themes, version 1.0
2022-02-05
publication
Bird taxonomy-related abundance per unit area of surface
SeaDataNet Parameter Discovery Vocabulary
2011-03-25
publication
Marine Environmental Data and Information Network
© CNC/NRW 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.
otherRestrictions
There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
eng
biota
ISO3166 Countries
2022-02-05
publication
England (ENG)
ISO3166 Countries
2022-02-05
publication
Wales (WLS)
SeaVoX Vertical Co-ordinate Coverages
2010-05-18
publication
benthic boundary layer
-5.89470233
-3.13849876
50.43670788
53.64985641
1996-01-01
1997-06-14
Natural Resources Wales (NRW)
0300 065 3000
Maes-y-Ffynnon
LL57 2DW
enquiries@naturalresourceswales.gov.uk
distributor
dataset
1996: Case studies of breeding phenology and breeding success were carried out at four colonies in South Pembrokeshire. The count unit adopted was the apparently occupied nest (aon). A colony was defined as any aggregation of nests separated by at least 500 m from the next nearest aggregation. Breeding cormorants were counted by single counts timed to coincide with the main incubation or early chick-rearing stages (late May to early June)At colonies in which studies of breeding biology were being conducted repeat counts throughout the breeding period, also recording the position and status of all nests were taken. This technique allows early failures and late starters to be identified and is therefore the most accurate method. Brood size was monitored at 11 co
lonies in Wales: four in South Pembrokeshire close to the source of the oil spill , three in Cardigan Bay and four in North Wales. For comparison, data were also collected from three colonies in Devon and one in Caithness. All were visited on at least one occasion when the young were between four weeks old and fledging. 1997: Survey methodology follows that of Cormorant Breeding Colony Survey ( Sellers 1997). Brood size monitored at 8 colonies and three visits were made to St Margaret's Island and Green Scar to monitor breeding success.