Intertidal Monitoring of Rocky Reefs in Pembrokeshire Marine Special Area of Conservation (SAC) 2007-2010

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. In Pembrokeshire Marine SAC the relevant Annex I intertidal habitat features include Reefs. The specific area sub-feature of interest covered here are intertidal rocky reefs at six sites in Milford Haven together with one site at Nolton Haven in St Bride’s Bay and another site at Peny-Holt on the Castlemartin peninsula. The purpose of this data capture was to undertake quantitative monitor of the biota colonising sloping emersed bedrock and colonising rockpools.

Dull adnabod

Dynodydd
NRW_DS115409
Teitl Amgen
  • 2010 CCW / ASML Pembrokeshire Marine SAC Rocky Reef Monitoring MRCCW1630000002D
  • 2009 CCW / ASML Pembrokeshire Marine SAC Rocky Reef Monitoring MRCCW16300000020
  • 2008 CCW / ASML Pembrokeshire Marine SAC Rocky Reef Monitoring MRCCW16300000013
  • 2007 CCW / ASML Pembrokeshire Marine SAC Rocky Reef Monitoring MRCCW1630000000C
  • Monitro Rhynglanwol o Riffiau Creigiog yn Ardal Cadwraeth Arbennig Forol Sir Benfro (ACA) 2007-2010
Laith Metadata
English
Datganiad

Development of a survey strategy and methodology for the fixed quadrats was carried out by ASML and CCW. Field survey equipment provided by ASML and CCW included handheld GPS navigators (various makes and models, all set to British National Grid and OSGB36 datum), digital cameras (various makes and models, all set to high resolution and local time), tape measures and first aid kits. On each sampling occasion, the survey teams were led by surveyors who were very experienced in rocky shore field work and were sometimes assisted by less experienced workers who helped with logistics. At each survey site records were taken from threes shore heights; Upper, Mid and Lower shore. Within each shore zone, the four 1 m x 1 m quadrats were relocated. The quadrats are sited in homogeneous areas of inclined rock (where possible) avoiding rock pools and large fissures. Within each 1 m2 quadrat, presence/absence data were recorded for all conspicuous species using a 25 cell grid (20 cm x 20 cm cells). This gave a frequency score of between 0 and 25 for each species. Organisms were identified to species level where possible with specimens being returned to the laboratory for verification where necessary.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
2011-05-31
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
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
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 

Rhychwant

Rhychwant

Hyd
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 

Maint Fertigol

Maint allweddair MEDIN

unknown
 
 

Dosbarthiad

Fformat - Math a Disgrifiad
  • Documents ()

    Math

    [A] Report and proformae for recording at each site in word and pdf format. [B] Spreadsheets - Pembs Quadrat Data 2007 final - Pembs Quadrat Data 2008 final - Pembs Quadrat Data 2009 final - Pembs Quadrat Data AQC 2007 – 2010 - Pembs Marine 2007 - 2010 quadrats photo catalogue [C] Primer files: Pembs Shore FB up to 2010.pwk [D] Photographs in jpeg format of quadrats and the site for each of the four years [E] Marine Recorder file

 

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
Gradd
false
Datganiad

Development of a survey strategy and methodology for the fixed quadrats was carried out by ASML and CCW. Field survey equipment provided by ASML and CCW included handheld GPS navigators (various makes and models, all set to British National Grid and OSGB36 datum), digital cameras (various makes and models, all set to high resolution and local time), tape measures and first aid kits. On each sampling occasion, the survey teams were led by surveyors who were very experienced in rocky shore field work and were sometimes assisted by less experienced workers who helped with logistics. At each survey site records were taken from threes shore heights; Upper, Mid and Lower shore. Within each shore zone, the four 1 m x 1 m quadrats were relocated. The quadrats are sited in homogeneous areas of inclined rock (where possible) avoiding rock pools and large fissures. Within each 1 m2 quadrat, presence/absence data were recorded for all conspicuous species using a 25 cell grid (20 cm x 20 cm cells). This gave a frequency score of between 0 and 25 for each species. Organisms were identified to species level where possible with specimens being returned to the laboratory for verification where necessary.
 

Allweddeiriau

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
  • rocky shore
  • rocky reef
  • Pembrokeshire Marine SAC
  • Pembrokeshire Marine cSAC
  • marine surveys (intertidal & subtidal surveys) (littoral survey) (sublittoral surveys) (bathymetric survey) (see also marine monitoring and MNCR)
  • marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore)
  • seashore (intertidal) (littoral) (see also beaches)
  • marine ecology (intertidal ecology)(subtidal ecology) (littoral communities) (intertidal habitat)(see also seashore)
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
 

System Cyfeirio Gofodol

Cod
Latitude and Longitude (EPSG::4326)
 

Cynnwys

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Teitlau cysylltiedig CNC

Monitoring of intertidal rocky reefs in Pembrokeshire Marine SAC 2007 to 2010
 

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 on this data. NRW may release, publish or disseminate it freely.
 

Defnyddiwch gyfyngiadau

Cyfyngiadau Defnyddio
Other restrictions
Cyfyngiadau eraill

© CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
4f4c4942-4343-5764-6473-313135343039 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
2024-05-31T09:40:02.341Z
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