Intertidal Monitoring of Sabellaria Reef in Cardigan Bay Special Areas of Conservation (SAC) 2007

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. Honeycomb reef worm Sabellaria alveolata is a sedentary, tube-dwelling polychaete most commonly found on rocky substrata in the lower shore and shallow subtidal zones of marine and estuarine areas. The honeycomb reef worm is a UK BAP Priority Habitat (BAP habitats are now Habitats of Principal Importance/Priority Habitats). Cardigan SAC is designated for a number of features, including Bottlenosed dolphins, Sandbanks, Reefs and Sea Caves, and some intertidal features including areas of bedrock and boulder/cobble habitats and many areas are characterised by biogenic reef formed by the honeycomb reef worm Sabellaria alveolata. This dataset includes the results of a survey of the biogenic reef formed by the honeycomb reef worm Sabellaria alveolata at two sites within Cardigan Bay SAC. The purpose of this data capture was to establish sites for long term monitoring and collect baseline/reference data using appropriate methods. This is a high quality survey carried out by an experienced team of marine biologists.

Dynodydd: NRW_DS111178

Teitl Amgen

Gwaith monitro rhynglanwol ar riff Sabellaria yn ACA Bae Ceredigion yn 2007
2007 CCW/ASML Cardigan Bay SAC Sabellaria reef monitoring MRCCW16300000002

Laith Metadata: English

Datganiad: Methodology used was a modified version of the transect survey methodology developed for Pen Llyn a'r Sarnau SAC (2008). Existing maps of Sabellaria extent were used to define the survey area within which a series of 11 transects were drawn at 50 m intervals approximately perpendicular to the coastline. Along each transect notes were made on habitat, community and condition/age of Sabellaria reef. Photographs were also taken to illustrate habitat and condition of the reef. 1 or 2 stations were used per transect for quadrat surveys. At each survey station a gridded 0.25m2 quadrat was placed randomly 15 times within a radius of 10m. Digital photographs were taken of each quadrat and a full survey was carried out on the first 5 quadrats to record % cover of standing water, total Sabellaria and live Sabellaria, key species/taxa, other typical fauna and flora. The other 10 quadrats were used to carry out additional recording of Sabellaria cover. The extent of the reef was mapped using the track function of handheld GPS units. Phase 1 surveys of intertidal habitats in the SAC were carried out in the SAC in 1996 and 2003 (Brazier et al. 2007), providing detailed mapping of the intertidal biotopes with some information on characterizing species. Surveys of Sabellaria reefs in the SAC were carried out for CCW in 2004 (Boyes et al. 2008). Additional mapping of Sabellaria reef extent at Aberaeron was carried out by CMACS Ltd. (sub-contracted by Atkins Ltd.) in August 2006 as part of an Environmental Assessment for proposed Aberaeron North Beach Coastal Defence Work (unpublished data provided by Atkins Ltd.).

Dyddiad cyfeirnod y set ddata (Cyhoeddiad): 2009-03-31

Ystod amser

Dyddiad cychwyn: 2007-05-14

Dyddiad gorffen: 2007-05-18

Categori pwnc

Oceans
Biota

Perchennog

Natural Resources Wales (NRW)

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

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

Cychwynnwr

Aquatic Survey and Monitoring Ltd (ASML)

Whitfield Brow, Bollihope, Frosterley, Weardale, Co. Durham, DL13 2SZ, England

http://www.marineseen.com/aquatic_survey_and_monitoring.htm

Rhychwant

Hyd: SIR CEREDIGION - CEREDIGION

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] Excel Spreadsheets of data: - Card 2007 Data for Marine Recorder v3.xls [C] Marine Recorder file: MRCCW16300000002 [D] A series of MapInfo GIS layers in MapInfo Native format (Tables). Translations from the MapInfo Tables are retained in ESRI Shapefile and MapInfo Interchange formats. [E] Photos

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: Methodology used was a modified version of the transect survey methodology developed for Pen Llyn a'r Sarnau SAC (2008). Existing maps of Sabellaria extent were used to define the survey area within which a series of 11 transects were drawn at 50 m intervals approximately perpendicular to the coastline. Along each transect notes were made on habitat, community and condition/age of Sabellaria reef. Photographs were also taken to illustrate habitat and condition of the reef. 1 or 2 stations were used per transect for quadrat surveys. At each survey station a gridded 0.25m2 quadrat was placed randomly 15 times within a radius of 10m. Digital photographs were taken of each quadrat and a full survey was carried out on the first 5 quadrats to record % cover of standing water, total Sabellaria and live Sabellaria, key species/taxa, other typical fauna and flora. The other 10 quadrats were used to carry out additional recording of Sabellaria cover. The extent of the reef was mapped using the track function of handheld GPS units. Phase 1 surveys of intertidal habitats in the SAC were carried out in the SAC in 1996 and 2003 (Brazier et al. 2007), providing detailed mapping of the intertidal biotopes with some information on characterizing species. Surveys of Sabellaria reefs in the SAC were carried out for CCW in 2004 (Boyes et al. 2008). Additional mapping of Sabellaria reef extent at Aberaeron was carried out by CMACS Ltd. (sub-contracted by Atkins Ltd.) in August 2006 as part of an Environmental Assessment for proposed Aberaeron North Beach Coastal Defence Work (unpublished data provided by Atkins Ltd.).

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

Cardigan Bay SAC
Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
Special Areas of Conservation (SAC) - SAC monitoring
intertidal
sabellaria alveolata
polychaete worms
reef
Cei Newydd
Aberaeron

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: British National Grid (EPSG::27700)

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Teitlau cysylltiedig CNC: Intertidal SAC monitoring Cardigan Bay SAC May 2007

Teitlau cysylltiedig CNC: Intertidal SAC monitoring Cardigan Bay SAC May 2008

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 2009 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: 4f4c4942-4343-5764-6473-313131313738 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: 2024-05-31T09:27:21.477Z

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 Sabellaria Reef in Cardigan Bay Special Areas of Conservation (SAC) 2007

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