Astudiaethau a dadansoddiad o gynnwys perfeddion mor-hwyaid duon Melanitta nigra nigra a laddwyd yn ystod damwain olew y Sea Empress
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.
All data is held within the reports.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS110126
- 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.
- Gwybodaeth ychwanegol
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Hughes, B., Stewart, B., Brown, M., Hearn, R. 1997. Studies of Common scoter Melanitta nigra nigra killed during the Sea Empress oil Spill. Final Report to SEEEC, CCW Sea Empress Science Report 233.
Hughes, B., Stewart, B., Brown, M., Hearn, R. 1996. Biometric and Gut Contents Analysis of Common Scoter Melanitta Nigra Nigra. Preliminary Report to SEEEC, CCW Sea Empress Science Report 233a.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 1997-11-30
Rhychwant
Rhychwant
- Hyd
- SIR GAERFYRDDIN - CARMARTHENSHIRE
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
- water column boundary layer
Dosbarthiad
- 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)
-
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
-
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.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- Milford Haven
- biometrics (biometry)
- starvation
- moult
- gut content analysis
- oiled birds
- wintering site
- muscle wastage
- marine and freshwater inventory
- fat reserves
- melanitta nigra
- Carmarthen Bay
- diets
- body condition
- population structure
- common scoter (black scoter)
- Sea Empress
- 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
-
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
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.
Datganiad Priodoli
- Cyfyngiadau eraill
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313130313236 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-03-03T14:27:59.545Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0