Intertidal Monitoring of Rockpools in Pembrokeshire Marine Special Area 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. Pembrokeshire Marine Special Area of Conservation (SAC) was selected for eight Habitats Directive Annex I habitat types and five Annex II species. The SAC is considered to be one of the best areas in the UK for marine reef habitats, a category within the Annex I list. High habitat and biological diversity is of great importance throughout the site, particularly the best documented reefs habitat in the Milford Haven ria-estuary. This dataset includes the results of a survey of intertidal rockpools at Pen-y-Holt on the Castlemartin peninsula.

Identifier: NRW_DS111177

Alternative Title

Gwaith monitro rhynglanwol ar byllau glan mor yn ACA Sir Benfro Forol yn 2007
2007 CCW/ASML Pembrokeshire marine SAC rockpool monitoring Pen y Holt MRCCW1630000000B

Metadata Language: English

Lineage: A well defined mid shore rock platform was identified from local knowledge. Within this area 10 pools were selected for survey, they all had to be at a similar height on shore, have a surface area of more than 0.5m2, be more than 5 cm deep and not more than 4 times as long as wide. A GPS fix was taken for each. Photographs were taken of each pool and basic measurement of depth and length were taken. The presence of typical pool sub-habitats and the influence of silt and scour were recorded as were the presence of typical pool taxa. Percentage cover estimates were made for algae and other cover species and presence of mobile animals and hydroids were recorded. A sample of Corallina officinalis algal turf was collected from each pool and from 4 locations in the Milford Haven. These samples were sent to a laboratory for post-survey identification of cryptic fauna. IECS was contracted in 2005 to establish a series of fixed quadrats across the rocky shore sites within the Milford Haven waterway (Hull et al., 2006). The 2005 survey provides baseline data for this project undertaken in 2007.

Dataset Reference Date (Publication): 2009-02-01

Temporal Extent

Begin date: 2007-08-16

End date: 2007-08-18

Topic category

Oceans
Biota

Owner

Natural Resources Wales (NRW)

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

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

Originator

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

Extent

Geographic Extent: SIR BENFRO - PEMBROKESHIRE

Vertical Extent

Medin Extent Keyword: benthic boundary layer

Format Type and Description

Geographic Information System ()

Specification

[A] Digital versions of the contract report: Microsoft Word document(s); and an equivalent Adobe Portable Document Format version [B] Excel Spreadsheets of data: - PenYholt_Rockpool_dataV2.xls - Rockpool Algal washings (plus algal weights).xls [C]Marine Recorder file: MRCCW1630000000B [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

Data quality

Quality Scope: Dataset

Conformity: 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
Explanation
Degree: false

Lineage: A well defined mid shore rock platform was identified from local knowledge. Within this area 10 pools were selected for survey, they all had to be at a similar height on shore, have a surface area of more than 0.5m2, be more than 5 cm deep and not more than 4 times as long as wide. A GPS fix was taken for each. Photographs were taken of each pool and basic measurement of depth and length were taken. The presence of typical pool sub-habitats and the influence of silt and scour were recorded as were the presence of typical pool taxa. Percentage cover estimates were made for algae and other cover species and presence of mobile animals and hydroids were recorded. A sample of Corallina officinalis algal turf was collected from each pool and from 4 locations in the Milford Haven. These samples were sent to a laboratory for post-survey identification of cryptic fauna. IECS was contracted in 2005 to establish a series of fixed quadrats across the rocky shore sites within the Milford Haven waterway (Hull et al., 2006). The 2005 survey provides baseline data for this project undertaken in 2007.

Keywords

GEMET - INSPIRE themes, version 1.0

Type: Theme

Citation

Date (Publication): 2008-06-01

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

Keywords

NRW Thesaurus

Pembrokeshire Marine SAC
Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
Special Areas of Conservation (SAC) - SAC monitoring
intertidal
rockpools
coralline algae
corallinales
coral weed
corallina officinalis

Type: Theme

Citation

Date (Publication): 2023-12-31

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

Keywords

SeaDataNet Parameter Discovery Vocabulary

Habitat characterisation
Habitat extent

Type: Theme

Citation

Date (Revision): 2021-01-06

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

Code: British National Grid (EPSG::27700)

Content Information

NRW Profile

Custom Elements

NRW Related Title: Intertidal monitoring of rocky reefs in Milford Haven, Pembrokeshire Marine SAC

NRW Related Title: Intertidal monitoring of rocky reefs in Milford Haven, Pembrokeshire Marine SAC in 2005

Constraints

Limitations on Public Access and Use

Restriction type: Other restrictions

Access Constraints Directive

Limitations: no limitations

Access Constraints Text

Other constraints: There are no access restrictions to this data. NRW may release, publish or disseminate it freely.

Use Constraints

Use constraints type: Other restrictions

Other constraints: © 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

File Identifier: 4f4c4942-4343-5764-6473-313131313737 XML

Metadata Language: English

Parent Identifier: Intertidal Monitoring of Rockpools in Pembrokeshire Marine Special Areas of Conservation (SACs) 2007 to 2013
NRW_DS114436

Resource type: Dataset

Metadata Date: 2024-12-09T12:39:20.554Z

Metadata Standard Name: NRW

Metadata Standard Version: 1.0

pointOfContact

Natural Resources Wales (NRW)

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

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

Publishing Body

Access the portal

Full access to the portal and metadata.

Intertidal Monitoring of Rockpools in Pembrokeshire Marine Special Area of Conservation (SAC) 2007

Identification

Temporal Extent

Extent

Extent

Vertical Extent

Distribution

Quality

Data quality

Keywords

Keywords

Citation

Keywords

Citation

Keywords

Citation

Spatial Reference System

Content

Content Information

NRW Profile

Custom Elements

Constraints

Constraints

Limitations on Public Access and Use

Access Constraints Directive

Access Constraints Text

Use Constraints

Metadata

Metadata

Publishing Body