Welsh coastal habitats as calving and nursery grounds for the harbour porpoise (Phocoena phocoena)
The results of an investigation into strandings data for evidence that harbour porpoises breed and calve in Welsh coastal waters. Harbour porpoise calves are recorded annually off the Welsh coast from mid-May onwards. However, published survey data is lacking for the region and the distribution and relative abundance of calves have not been reported. This project present data from harbour porpoise strandings on the Welsh coast collected through the collaborative UK and Celtic Marine Mammal Strandings Project, examines the incidence and seasonality of calf and neonate strandings and compare stranding rates in Wales with England, Scotland and Ireland. The only data associated with this project is held within the report. Raw data is held by CSIP.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS110015
- Teitl Amgen
-
- Cynefinoedd arfordirol Cymru fel mannau lloia a meithrin i'r llamhidydd (Phocoena phocoena)
- Laith Metadata
- English
- Datganiad
-
Data collation and desk study. Marine mammal and turtle strandings in Wales are reported to Marine Environmental Monitoring (MEM) via a dedicated telephone line. MEM respond to and collect systematic data from all stranding incidents, identify/confirm species, measure body length, sex the carcass, collect tissue samples, and advise on disposal of carcasses. In addition, animals in fresh, slight or moderate condition are recovered whenever possible placed in cold storage or taken directly for post mortem examination. All records of cetacean strandings in England and Wales are held by the Natural History Museum, London and have been since 1913. The present study investigates all strandings of harbour porpoise recorded on the Welsh coast over a 10 year period between January 1989 and January 1999. Identification of maternally dependant and neonate calves- overall body length used to separate stranded animals into approximate age classes. Classify animals of 110cm or less as 'calves'. Body length maximum of 90cm to identify calves that were still maternally dependent, i.e. neonates and calves assumed too young to survive alone.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 1999-12-31
Ystod amser
- Dyddiad cychwyn
- 1989-01-01
- Dyddiad gorffen
- 1999-01-31
- Categori pwnc
-
- Biota
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
-
benthic boundary layer
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
()
- Math
-
Report is held as Word document, and within a Winzip. Folder
-
Documents
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
Data collation and desk study. Marine mammal and turtle strandings in Wales are reported to Marine Environmental Monitoring (MEM) via a dedicated telephone line. MEM respond to and collect systematic data from all stranding incidents, identify/confirm species, measure body length, sex the carcass, collect tissue samples, and advise on disposal of carcasses. In addition, animals in fresh, slight or moderate condition are recovered whenever possible placed in cold storage or taken directly for post mortem examination. All records of cetacean strandings in England and Wales are held by the Natural History Museum, London and have been since 1913. The present study investigates all strandings of harbour porpoise recorded on the Welsh coast over a 10 year period between January 1989 and January 1999. Identification of maternally dependant and neonate calves- overall body length used to separate stranded animals into approximate age classes. Classify animals of 110cm or less as 'calves'. Body length maximum of 90cm to identify calves that were still maternally dependent, i.e. neonates and calves assumed too young to survive alone.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- harbour porpoises
- phocoena phocoena
- postmortem
- cetaceans (see also specific species)
- strandings
- Natural History Museum
- calving grounds
- nursery grounds
- Marine Environmental Monitoring (MEM)
- carcass
- body length
- neonate calves
- marine and freshwater inventory
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
Allweddair
- SeaDataNet Parameter Discovery Vocabulary
-
- Cetacean mortality
- Cetacean reproduction
- Cetacean morphology and physiology
- Math
- Theme
Dyfyniad
- Dyddiad (Adolygu)
- 2021-01-06
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
The use of Welsh coastal habitats as calving and nursing grounds for the Harbour Porpoise
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 on 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 copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313130303135 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:44:10.328Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0