Intertidal Monitoring of Muddy gravels (LMX.Psyllid) in Menai Strait and Conwy Bay Special Area of Conservation (SAC) 2004

Muddy gravels consist of shores of mixed sediments ranging from muds with gravel and sand components to mixed sediments with pebbles, gravels, sands and mud in even proportions. Mixed sediments which are predominantly muddy tend to support infauna similar to mud and sandy mud shores. Although sheltered muddy gravel habitats occur principally in estuaries, rias and sea lochs in areas protected from wave action and strong tidal streams, the environmental conditions of the Menai Strait are unusual, in that the water is relatively turbid and although the area is largely sheltered from wave action it experiences extremely strong tidal currents, reaching up to 8 knots in places during spring tides. The muddy gravel LMX.Psyllid biotope has been mapped along the west side of the Menai Straits, with the mixed sediment shores between Beaumaris and Lleiniog being highly productive, rich in animal and plant species. The muddy gravel LMX.Psyllid contains an unusually high number of syllid polychaetes and form a nationally important biotope, uncommon within the UK. The aim of this data capture was to identify the boundary of muddy gravel and muddy gravel with canopy of tideswept Fucus serratus. - To determine what exactly constitutes the boundary of muddy gravel - To measure the extent of the muddy gravel biotope - To determine a physical damage index for muddy gravels - To take samples at old and recently impacted areas of muddy gravel. - To characterise the infaunal community and identify the degree and type of change using previous data.

Dynodydd: NRW_DS101896

Teitl Amgen

2004 CCW / IECS Menai Strait and Conwy Bay SAC muddy gravel (LMX) epibiota monitoring MRCCW30200000007
2004 CCW / IECS Menai Strait and Conwy Bay SAC muddy gravel (LMX) core sampling MRCCW30200000009
Monitro rhynglanwol graean lleidiog (LMX.Psyllid) yn ACA Y Fenai a Bae Conwy 2004

Laith Metadata: English

Datganiad: Marine mud and muddy gravel habitats had previously been sampled by Barnes (2003) and CCW in August 2002. The survey was undertaken two hours either side of low water on a good spring tide with transects walked from high to low water, perpendicular to the shore along a bearing. At each sample point (sample station) GPS readings were noted. Information recorded included photograph of sediment surface, sediment type, species found on surface, % cover of fucoids, photograph of profile dug in sediment, species found in profile and infauna detectable by sieving. Sample points were spaced at 25m intervals and sufficient regular transects were sampled to ensure that extent and distribution were described. Survey dates- 02/08/04-03/08/04, historic data was also used from 2002.

Dyddiad cyfeirnod y set ddata (Cyhoeddiad): 2004-12-31

Ystod amser

Dyddiad cychwyn: 2002-08-01

Dyddiad gorffen: 2004-08-03

Categori pwnc

Biota

Perchennog

Natural Resources Wales (NRW)

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

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

Cychwynnwr

Institute of Estuarine and Coastal Studies

University of Hull, Hull, East Yorkshire, 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] Data is held within Excel spreadsheets [B] Spatial TAB Files. [C] Jpeg Images of quadrats and sites [D] Data within Marine Recorder: MRCCW30200000009 / MRCCW30200000007

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: Marine mud and muddy gravel habitats had previously been sampled by Barnes (2003) and CCW in August 2002. The survey was undertaken two hours either side of low water on a good spring tide with transects walked from high to low water, perpendicular to the shore along a bearing. At each sample point (sample station) GPS readings were noted. Information recorded included photograph of sediment surface, sediment type, species found on surface, % cover of fucoids, photograph of profile dug in sediment, species found in profile and infauna detectable by sieving. Sample points were spaced at 25m intervals and sufficient regular transects were sampled to ensure that extent and distribution were described. Survey dates- 02/08/04-03/08/04, historic data was also used from 2002.

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 cSAC
marine surveys (intertidal & subtidal surveys) (littoral survey) (sublittoral surveys) (bathymetric survey) (see also marine monitoring and MNCR)
monitoring (see specific types of monitoring eg. woodland monitoring)
marine sediments (coastal sediments) (intertidal sediments) (subtidal sediments)
sediment infauna

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2023-12-31

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

Allweddair

SeaDataNet Parameter Discovery Vocabulary

Habitat characterisation
Habitat extent

Math: Theme

Dyfyniad

Dyddiad (Adolygu): 2021-01-06

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

Cod: British National Grid (EPSG::27700)

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Teitlau cysylltiedig CNC: Intertidal monitoring of muddy gravels (LMX.Psyllid) in Menai Strait and Conwy Bay SAC in 2004

Teitlau cysylltiedig CNC: Marine mud and muddy gravel characterisation in the Menai Strait

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. CCW may release, publish or disseminate it freely.

Defnyddiwch gyfyngiadau

Cyfyngiadau Defnyddio: Other restrictions

Cyfyngiadau eraill: © CCGC/CCW 2004. 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 CCW'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: 4f4c4942-4343-5764-6473-313031383936 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: 2024-05-31T09:27:23.296Z

Enw Safonol Metadata: NRW

Fersiwn Metadata: 1.0

Pwynt Cyswllt

Data Services Team

Natural Resources Wales (NRW), Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW

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

Corff Cyhoeddi

Mynediad i'r Porth

Mynediad llawn i'r porth a'r metadata.

Intertidal Monitoring of Muddy gravels (LMX.Psyllid) in Menai Strait and Conwy Bay Special Area of Conservation (SAC) 2004

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