Intertidal Monitoring of Underboulder Communities in the Menai Strait and Conwy Bay Special Area of Conservation (SAC) 2004/2005

The Habitats Directive establishes that the management of Special Areas of Conservation (SACs) should aim to achieve the favourable conservation status of habitat and species features listed within its Annex I and Annex II. For SACs in Wales, the Countryside Council for Wales (CCW) is therefore required to report on a regular basis on whether features are in favourable conservation status. A specific feature of the Menai Strait and Conwy Bay SAC are the underboulder communities, which are established in the extensive boulder areas within the SAC. Rich underboulder communities have been recorded and mapped on the rocky intertidal areas of the Menai Strait and an area west of Llandudno. Underboulder communities are also present where there are tide-swept communities that happen to lie on boulder habitats throughout the Menai Strait. Sponge dominated communities have been recorded from boulders and cobbles that are nationally uncommon, hosting a rich faunal turf on tide-swept substrata. The associated report combines the surveys and findings undertaking during 2004 (Boyes and Allen, 2004) and 2005 (Mazik et al. 2005). The report combines both datasets and additional analaysis has been completed using both sets of data. The purpose of this data capture was to - Provide a reference condition on species present at a number of sites within the SAC, - Evaluate the variability between boulders and between sites and attempt to correlate the variability with physical factors, - Identify the best methods for measuring the condition of the underboulder features in the SAC in the future and to evaluate the possible methods by which the impact of boulder turning can be assessed and monitored.

Dynodydd: NRW_DS101993

Teitl Amgen

2005 CCW / IECS Menai Strait and Conwy Bay SAC boulder habitat monitoring MRCCW3020000001D
2004 CCW / IECS Menai Strait and Conwy Bay SAC boulder habitat monitoring MRCCW30200000006
Intertidal Monitoring of underboulder communities in the Menai Strait and Conwy Bay SAC in 2004/2005
Monitoro Rhynglanwol: Cymunedau dan glogfeini yn ACA Y Fenai a Bae Conwy

Laith Metadata: English

Datganiad: Boulders were chosen along the same shore height (MLW - MSLW) and within close proximity to each other (where possible); boulders were only selected if they fit within a 0.5m x 0.5m quadrat; a GPS point was taken of each boulder; a photograph was taken of the boulder upper surface then a species list taken; the boulder was then turned, photographed and a species list taken from the underside of the boulder; a note was taken of the time spent compiling the species list; Evidence of boulder turning including photographs, an estimation of the number of turned boulders within a 25 m radius; General site description, together with site specific information (to each boulder) including substratum characteristics (underneath and surrounding the boulder), percentage cover of macroalgae and the presence of standing water. Substratum characteristics included an estimation of the proportion of each major particle size (e.g., boulders, cobbles, gravel, coarse sand, silt), water content and whether or not the sediment was anoxic. The intertidal Phase 1 mapping survey identified the underboulder communities in the Menai Strait as being important for their species richness and extent from 1999 to 2001. Limitations occurred within in-situ identification of species.

Gwybodaeth ychwanegol: See also: DRAFT - Mazik, K., Musk, W.A., Scott, G, Travers, S., Jones, M. and D.P. Brazier. 2008. Intertidal Monitoring of underboulder communities in the Menai Strait and Conwy Bay SAC. CCW Marine Monitoring report No 36.

Dyddiad cyfeirnod y set ddata (Cyhoeddiad): 2013-02-28

Ystod amser

Dyddiad cychwyn: 2004-08-03

Dyddiad gorffen: 2005-05-29

Categori pwnc

Biota

Perchennog

Natural Resources Wales (NRW)

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

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

Cychwynnwr

Countryside Council for Wales (CCW)

Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW

http://naturalresourceswales.gov.uk/splash?orig=/

Cychwynnwr

Hull University. Institute Of Estuarine And Coastal Studies

The University of Hull, Cottingham Road, Hull, HU6 7RX

http://www.hull.ac.uk/iecs/

Rhychwant

Hyd: Wales (WLS)

Map representing the geographic extent of the dataset

Maint Fertigol

Maint allweddair MEDIN: benthic boundary layer

Fformat - Math a Disgrifiad

Documents Documents ()

Math

[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): - Position of survey stations in the Menai Strait - 2004. - Position of survey stations in the Menai Strait and Llandudno - 2005. - Translations from the above MapInfo Tables are retained in ESRI Shapefile and MapInfo Interchange formats. [C] Excel spreadsheets of species data from each site and each facet of each boulder for 2004 and 2005. [D] Photographs at survey stations of site and boulders. [E] Marine Recorder file: MRCCW30200000006, MRCCW3020000001D

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: Boulders were chosen along the same shore height (MLW - MSLW) and within close proximity to each other (where possible); boulders were only selected if they fit within a 0.5m x 0.5m quadrat; a GPS point was taken of each boulder; a photograph was taken of the boulder upper surface then a species list taken; the boulder was then turned, photographed and a species list taken from the underside of the boulder; a note was taken of the time spent compiling the species list; Evidence of boulder turning including photographs, an estimation of the number of turned boulders within a 25 m radius; General site description, together with site specific information (to each boulder) including substratum characteristics (underneath and surrounding the boulder), percentage cover of macroalgae and the presence of standing water. Substratum characteristics included an estimation of the proportion of each major particle size (e.g., boulders, cobbles, gravel, coarse sand, silt), water content and whether or not the sediment was anoxic. The intertidal Phase 1 mapping survey identified the underboulder communities in the Menai Strait as being important for their species richness and extent from 1999 to 2001. Limitations occurred within in-situ identification of species.

Allweddair

GEMET - INSPIRE themes, version 1.0

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2008-06-01

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

Allweddair

NRW Thesaurus

Menai Strait and Conwy Bay SAC
marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore)
Special Areas of Conservation (SAC) - SAC monitoring
Britannia Bridge
Church Island
Felinheli
Llandudno
bait digging (bait collecting)
tideswept
under boulder
underboulder
Ynys Welltog
Price's Point Beacon
Britannia Rock
Foryd Bay [Y Foryd]

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2023-12-31

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

Allweddair

SeaDataNet Parameter Discovery Vocabulary

Habitat characterisation

Math: Theme

Dyfyniad

Dyddiad (Adolygu): 2021-01-06

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

Cod: Latitude and Longitude (EPSG::4326)

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Teitlau cysylltiedig CNC: Intertidal monitoring and underboulder communities in the Menai Strait and Conwy Bay SAC 2004/5

Teitlau cysylltiedig CNC: Intertidal monitoring and underboulder communities in the Menai Strait and Conwy Bay SAC 2004/5

Teitlau cysylltiedig CNC: Priority Marine Habitats of Wales: Intertidal Underboulder

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 2013. 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

Dynodydd Ffeil: 4f4c4942-4343-5764-6473-313031393933 XML

Laith Metadata: English

Dynodydd Rhiant: Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501

Math o adnodd: Dataset

Dyddiad Metadata: 2024-05-31T09:39:46.025Z

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.

Intertidal Monitoring of Underboulder Communities in the Menai Strait and Conwy Bay Special Area of Conservation (SAC) 2004/2005

Dull adnabod

Ystod amser

Rhychwant

Rhychwant

Maint Fertigol

Dosbarthiad

Ansawdd

Ansawdd Data

Allweddeiriau

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