Studies and Biometric Gut Content Analyses of Common Scoter Melanitta nigra nigra Killed During the Sea Empress Oil Spill

Carmarthen Bay is the most important wintering site for Common Scoters in the UK. It is estimated that the Sea Empress oil spill in February 1996 resulted in the deaths of at least 4,500 Common Scoter. This dataset contains the results of a study to describe the population structure, body condition, level of oiling, biometrics, moult, diet and cause of death of Common Scoters killed by the Sea Empress oil spill, and to investigate factors affecting body condition, diet and cause of death. Data captured in order to describe the biometrics and moult of Common Scoters killed in the Sea Empress oil spill, to determine the age structure of killed birds, and to determine the diet of birds through gut contents analysis.

Dynodydd: NRW_DS110126

Teitl Amgen

Astudiaethau a dadansoddiad o gynnwys perfeddion mor-hwyaid duon Melanitta nigra nigra a laddwyd yn ystod damwain olew y Sea Empress

Laith Metadata: English

Datganiad: After retrieval of Common Scoters killed during the Sea Empress oil spill were stored at the National Museum of Wales and catalogued in terms of date and location of recovery, rehabilitation status (i.e. whether or not birds had been supplied from bird hospitals), and condition of corpse (Howlett 1996). Birds transported to WWT Slimbridge where every specimen was further categorised in terms of the degree of oiling suffered, physical condition, sex and age. The level of oiling was scored from 0 to 4. The amount of fat reserves present was ascertained by dissection and scored from 0 to 4. During the biometrics and moult study, the oesophagus, proventriculus and gizzard of each bird were removed and immediately frozen at -20 degrees C. Gut contents were extracted for analysis at a later date. As the proportion of Common Scoters with food in the oesophagus or proventriculus was very low ( less than 1% in the preliminary sample), gut contents analysis was restricted to gizzard analyses. Gizzard contents consisted mainly of shell fragments; therefore it was not possible to collect quantitative information on the biomass and relative proportions of different food items. Consequently, each food item was simply identified to species level and the proportion of birds feeding on each food item (% occurrence) calculated.

Dyddiad cyfeirnod y set ddata (Cyhoeddiad): 1997-11-30

Ystod amser

Dyddiad cychwyn: 1996-02-24

Dyddiad gorffen: 1996-03-02

Categori pwnc

Biota

Perchennog

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Cychwynnwr

Wildfowl and Wetlands Trust (WWT). WWT Wetlands Advisory Service.

c/o Wildlife and Wetlands Trust, Slimbridge, Gloucestershire

http://www.wwt.org.uk/

Rhychwant

Hyd: SIR GAERFYRDDIN - CARMARTHENSHIRE

Hyd: Wales (WLS)

Map representing the geographic extent of the dataset

Maint Fertigol

Maint allweddair MEDIN: benthic boundary layer; water column skin

Fformat - Math a Disgrifiad

Documents ()

Math

[A] The reports are held in the following formats (MS Word, PDF format, WPD) [B] Application (LHA.EXE and SEEECSCO.EXE unknown application files)

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
Gradd: false

Datganiad: After retrieval of Common Scoters killed during the Sea Empress oil spill were stored at the National Museum of Wales and catalogued in terms of date and location of recovery, rehabilitation status (i.e. whether or not birds had been supplied from bird hospitals), and condition of corpse (Howlett 1996). Birds transported to WWT Slimbridge where every specimen was further categorised in terms of the degree of oiling suffered, physical condition, sex and age. The level of oiling was scored from 0 to 4. The amount of fat reserves present was ascertained by dissection and scored from 0 to 4. During the biometrics and moult study, the oesophagus, proventriculus and gizzard of each bird were removed and immediately frozen at -20 degrees C. Gut contents were extracted for analysis at a later date. As the proportion of Common Scoters with food in the oesophagus or proventriculus was very low ( less than 1% in the preliminary sample), gut contents analysis was restricted to gizzard analyses. Gizzard contents consisted mainly of shell fragments; therefore it was not possible to collect quantitative information on the biomass and relative proportions of different food items. Consequently, each food item was simply identified to species level and the proportion of birds feeding on each food item (% occurrence) calculated.

Allweddair

GEMET - INSPIRE themes, version 1.0

Species distribution

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2008-06-01

Cod: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair

NRW Thesaurus

common scoter (black scoter)
melanitta nigra
Sea Empress
biometrics (biometry)
Carmarthen Bay
wintering site
Milford Haven
population structure
oiled birds
diets
marine and freshwater inventory
gut content analysis
body condition
moult
fat reserves
muscle wastage
starvation

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2023-12-31

Cod: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair

SeaDataNet Parameter Discovery Vocabulary

Bird taxonomy-related abundance per unit area of surface

Math: Theme

Dyfyniad

Dyddiad (Adolygu): 2021-01-06

Cod: geonetwork.thesaurus.external.theme.rdf+xml

Allweddair

Integrated Public Sector Vocabulary

oil spillage

Math: Theme

Dyfyniad

Dyddiad (Adolygu): 2013-04-03

Cod: geonetwork.thesaurus.external.theme.subjects

Cod: British National Grid (EPSG::27700)

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Teitlau cysylltiedig CNC: Biometric and gut contents analyses of common scoter melanitta nigra nigra : preliminary report

Teitlau cysylltiedig CNC: Studies of common scoter Melanitta nigra nigra killed during the Sea Empress oil spill

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

Dynodydd Ffeil: 4f4c4942-4343-5764-6473-313130313236 XML

Laith Metadata: English

Math o adnodd: Dataset

Dyddiad Metadata: 2024-05-31T09:41:21.663Z

Enw Safonol Metadata: NRW

Fersiwn Metadata: 1.0

Pwynt Cyswllt

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Corff Cyhoeddi

Mynediad i'r Porth

Mynediad llawn i'r porth a'r metadata.

Studies and Biometric Gut Content Analyses of Common Scoter Melanitta nigra nigra Killed During the Sea Empress Oil Spill

Dull adnabod

Ystod amser

Rhychwant

Rhychwant

Maint Fertigol

Dosbarthiad

Ansawdd

Ansawdd Data

Allweddeiriau

Allweddair

Dyfyniad

Allweddair

Dyfyniad

Allweddair

Dyfyniad

Allweddair

Dyfyniad

System Cyfeirio Gofodol

Cynnwys

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Cyfyngiadau

Cyfyngiadau

Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus

Cyfarwyddeb Cyfyngiadau Mynediad

Testun cyfyngiadau mynediad

Defnyddiwch gyfyngiadau

Metadata

Metadata

Corff Cyhoeddi