Gwaith monitro rhynglanwol ar byllau glan mor yn ACA Sir Benfro Forol yn 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) was 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.

Dull adnabod

Dynodydd
NRW_DS111177
Teitl Amgen
  • 2007 CCW/ASML Pembrokeshire marine SAC rockpool monitoring Pen y Holt (MRCCW1630000000B)
Laith Metadata
English
Datganiad

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.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
2009-02-01

Ystod amser

Dyddiad cychwyn
2007-08-16
Dyddiad gorffen
2007-08-18
 
Categori pwnc
  • 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

Rhychwant

Hyd
SIR BENFRO - PEMBROKESHIRE
N
W
E
S
Map representing the geographic extent of the dataset


 

Maint Fertigol

Maint allweddair MEDIN

benthic boundary layer
 
 

Dosbarthiad

Fformat - Math a Disgrifiad
  • Database ( Marine Recorder Online - Version 2.09.02 )

    Math

    Marine Recorder

 

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

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Gradd
false
Datganiad

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.
 

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
  • rockpools
  • Pembrokeshire Marine SAC
  • Marine Recorder
  • Specialised biotope Rockpools
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2026-08-27
Cod
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair

SeaDataNet Parameter Discovery Vocabulary
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2024-06-19
Cod
geonetwork.thesaurus.external.theme.rdf+xml
 

System Cyfeirio Gofodol

Cod
British National Grid (EPSG::27700)
 

Cynnwys

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Teitlau cysylltiedig CNC

Intertidal monitoring of rocky reefs in Milford Haven, Pembrokeshire Marine SAC
Teitlau cysylltiedig CNC

Intertidal monitoring of rocky reefs in Milford Haven, Pembrokeshire Marine SAC in 2005
 

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 to 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.
 

Datganiad Priodoli

Cyfyngiadau eraill

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
 

Math o Drwydded

Cyfyngiadau eraill
Open Government Licence
 
 
 

Metadata

Metadata

Dynodydd Ffeil
4f4c4942-4343-5764-6473-313131313737 XML
Laith Metadata
English
Dynodydd Rhiant
Across Wales Intertidal Monitoring Survey

NRW_DS109834
Math o adnodd
Dataset
Dyddiad Metadata
2026-10-19T09:51:47.04Z
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