Collection Activity and Crab Survey in the Menai Strait (2009)
Special Areas of Conservation (SACs) are strictly protected sites designated under the EC Habitats Directive. In the Menai Strait and Conwy Bay SAC the relevant Annex I intertidal habitat features are Mudflats and sandflats not covered by seawater at low tide and Reefs. Specific areas of interest include areas of tide-swept bedrock and boulders and areas of tide-swept Fucus serratus on mixed sediment along the Menai Strait. In previous studies it was noted that a portion of the boulders had been turned by bait collectors. Surveys to assess bait collection activity and crab counts were carried out along the length of the shoreline of the Menai Strait using student volunteers. Data quality and confidence considered high.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS115077
- Teitl Amgen
-
- 2009 CCW Menai Strait and Conwy Bay SAC collecting activity and crab survey MRCCW3000000005D
- Gweithgarwch casglu ac arolwg crancod yn Afon Menai 2009
- Laith Metadata
- English
- Datganiad
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The intertidal zone of each site was divided into approximately 200 m long sections and given 'shore block' codes. In each shore block the amount of collecting activity was observed for 10 minutes and recorded; winkle collectors and peeler collectors were noted as well as any unknown activities. The boulder turning frequency was also recorded for each shore block. In addition, the surveyors worked along the lower-mid shore evaluating the number of turned boulders; 30 boulders were checked in each shore block. Crab counts were also recorded; juvenile Carcinus maenas, adult Carcinus maenas and juvenile Cancer pagurus.
- Gwybodaeth ychwanegol
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The associated report for this dataset is as follows: Moore, J., Brazier. P., Hobbs, E. 2009 Intertidal SAC monitoring Menai Strait and Conwy Bay SAC June 2009. CCW Marine Monitoring Report 82. Bangor.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2010-11-30
Ystod amser
- Dyddiad cychwyn
- 2009-06-25
- Dyddiad gorffen
- 2009-06-26
- Categori pwnc
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- Biota
Rhychwant
Rhychwant
- Hyd
- GWYNEDD - GWYNEDD
))
Maint Fertigol
- Maint allweddair MEDIN
- benthic boundary layer
Dosbarthiad
- Fformat - Math a Disgrifiad
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-
Database
()
- Math
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[A] Digital versions of the contract report: Microsoft Word document(s); and an equivalent Adobe Portable Document Format version. [B] MapInfo GIS layer in MapInfo Native format (Tables): - Positions of survey blocks. [C] Excel spreadsheets for activity and crab counts [D] Photographs of boulders [E] Marine Recorder file [MRCCW3000000005D]
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Database
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
The intertidal zone of each site was divided into approximately 200 m long sections and given 'shore block' codes. In each shore block the amount of collecting activity was observed for 10 minutes and recorded; winkle collectors and peeler collectors were noted as well as any unknown activities. The boulder turning frequency was also recorded for each shore block. In addition, the surveyors worked along the lower-mid shore evaluating the number of turned boulders; 30 boulders were checked in each shore block. Crab counts were also recorded; juvenile Carcinus maenas, adult Carcinus maenas and juvenile Cancer pagurus.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- boulders
- underboulder
- bait digging (bait collecting)
- winkles
- littorina littorea
- crabs
- activities
- turning
- peelers
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
Allweddair
- SeaDataNet Parameter Discovery Vocabulary
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- Zoobenthos taxonomic abundance
- Math
- Theme
Dyfyniad
- Dyddiad (Adolygu)
- 2021-01-06
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
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Intertidal SAC monitoring Menai Strait and Conwy Bay SAC : June 2009
- Teitlau cysylltiedig CNC
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Intertidal SAC monitoring Menai Strait and Conwy Bay SAC June 2008
- Teitlau cysylltiedig CNC
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Across Wales intertidal SAC monitoring Menai Strait and Conwy Bay SAC september 2007
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
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© CNC/NRW 2010. 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
- 4f4c4942-4343-5764-6473-313135303737 XML
- Laith Metadata
- English
- Dynodydd Rhiant
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Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-12-09T12:37:52.292Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0