Gweithgareddau casglu yn Y Fenai a dulliau peilot o asesu amlder gweithgareddau troi clogfeini 2011.
Special Areas of Conservation (SACs) are strictly protected sites designated under the EC Habitats Directive. Reporting on the condition of the intertidal features of the Menai Strait and Conwy Bay Special Area of Conservation (SAC) depends upon an understanding of the features and the threats of damage by regulated and unregulated activities.The former Countryside Council for Wales (CCW), now part of Natural Resources Wales (NRW), run an intertidal SAC monitoring program, which is undertaken to evaluate the quality of the biological communities associated with under-boulder and muddy gravel habitats. The biological data must be placed in context with the levels of collecting activity on the shore, specifically bait and winkle collecting.
CCW contracted Marine EcoSol to better assess the intensity of collecting activity in the Menai Strait and Conwy Bay SAC, in order to establish the levels that might be considered acceptable, in terms of their impact on the intertidal (Reef) features. Both muddy gravel and underboulder communities are Biodiversity Action Plan (BAP) habitats, and the 2011 field surveys are within or adjacent to intertidal Site of Special Scientific Interest (SSSI) and marine SAC. The project was to investigate the feasibility of developing rapid visual assessment methods for use by non-specialists and to provide contextual information for status reporting of reef features within the Menai Strait and Colwyn Bay SAC.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS114836
- Laith Metadata
- English
- Datganiad
-
This builds on work undertaken in 2009 to develop a trial method for the evaluation of levels of unregulated activity of collecting peeler crabs and winkles. Collection effort was rapidly assessed by driving along the length of the Menai Strait from west to east over approximately 3 hours, stopping at 17 sites to record the number of collectors at each site on the same tide. This survey was repeated 6 times between April and September. Methods to assess the impact of any boulder turning were also trialled. Surveyors assigned 'turning categories' to each boulder within 1 m either side of three 20 m transect lines at Y Foryd (a high impacted site) and Y Felinheli (a site of low collector impact).
- Gwybodaeth ychwanegol
-
A number of improvements to the methodology are suggested in the associated report (CCW Marine Monitoring Report 94).
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2012-03-31
Rhychwant
Rhychwant
- Hyd
- GWYNEDD - GWYNEDD
- Hyd
- SIR YNYS MON - ISLE OF ANGLESEY
))
Maint Fertigol
- Maint allweddair MEDIN
- benthic boundary layer
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
(
)
- Math
-
The final report in Microsoft Word and Adobe PDF formats.
-
Image
(
)
- Math
-
[B] A full set of Report images (maps) produced in JPEG format. A full set of images produced in jpg format and index excel spreadsheet
-
Geographic Information System
(
)
- Math
-
A series of GIS layers on which the maps in the report are based
-
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
-
This builds on work undertaken in 2009 to develop a trial method for the evaluation of levels of unregulated activity of collecting peeler crabs and winkles. Collection effort was rapidly assessed by driving along the length of the Menai Strait from west to east over approximately 3 hours, stopping at 17 sites to record the number of collectors at each site on the same tide. This survey was repeated 6 times between April and September. Methods to assess the impact of any boulder turning were also trialled. Surveyors assigned 'turning categories' to each boulder within 1 m either side of three 20 m transect lines at Y Foryd (a high impacted site) and Y Felinheli (a site of low collector impact).
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- underboulder
- activities
- Menai Strait and Conwy Bay SAC
- under boulder
- crabs
- turning
- peelers
- littorina littorea
- winkles
- disturbance
- bait digging (bait collecting)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2025-01-08
Allweddair
-
SeaDataNet Parameter Discovery Vocabulary
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Collection activity in the Menai Strait and pilot methods to assess frequency of boulder turning activity
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 2012. 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.
Datganiad Priodoli
- Cyfyngiadau eraill
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313134383336 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-03-03T12:01:12.843Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0