Marine Monitoring Drop-Down Video around North Llyn Special Area of Conservation ( SAC ) 2012

  • English
  • wel
  • All

Special Areas of Conservation (SACs) are strictly protected sites designated under the EC Habitats Directive. The Habitats Directive has a list of habitat types and species that are considered to be most in need of conservation at a European level (excluding birds, which are covered under the EC Birds Directive). Once sites have been designated, the country agencies work with owners, occupiers and others to secure their management and protection regime. This dataset provides a continuation of data collected from Drop Down Video Monitoring in Pen Llyn a'r Sarnau SAC. The purpose of this data capture was to inform management decisions within the SACs. QA was undertaken including 5% of tows being re-analysed by a differernt surveyor and QA of at least 10% of data entry. Analysis and QA undertaken by Marine EcoSol.

Identification

Dynodydd
Identifier
NRW_DS115526
Teitl Amgen
Alternative Title
  • CCW Marine Monitoring Drop Down Video 2012 (North Llyn SAC)
  • 2012 CCW North Pen Llyn Drop Down and Towed Video Monitoring MRCCW3170000000B
  • 2012 North Llyn SAC Modiolus Drop Down video and still images
  • Fideo Tanddwr ar gyfer Monitro'r Môr o amgylch Ardal Cadwraeth Arbennig (ACA) Gogledd Llŷn 2012
Laith Metadata
Metadata Language
English
Lineage

In June 2012 the Countryside Council for Wales undertook video tows for routine monitoring within the Pen Llyn a'r Sarnau Special Area of Conservation. Video was collected using a bespoke C-technics C-Vision Mantis HD video camera towed on a sledge from CCW's research vessel, Pedryn. Photographic stills (using a Canon 600/DD stills camera) were taken every 8 seconds along to tow to assist with habitat validation and utilised to inform species identification and augment species lists. Video was analysed for habitats, species and biotopes by Marine EcoSol using standard Marine Nature Conservation Review (MNCR) derived techniques and JNCC Marine Habitat Classification. Data was later entered into Marine Recorder by Marine EcoSol. GIS vessel tracks were exported from Boat GPS. GIS Start and end points and field notes also supplied.
Additional Information

This monitoring is a follow on from data collected between 2004 - 2005 (Across Wales drop-down video monitoring 2004-2005 (87090)), and 2007 - 2010 (Across Wales drop-down video monitoring 2007 - 2010 (110070)).
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2013-03-28
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Marine Ecological Solutions Ltd
Marine Ecological Solutions Ltd, 41 High Street, Menai Bridge, Ynys Mon, LL59 5EF, Wales
http://www.marine-ecosol.co.uk
 

Extent

Extent

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


 

Vertical Extent

Medin Extent Keyword
benthic boundary layer

Maint Fertigol
Vertical Extent

Gwerth lleiaf
Minimum value (metres)
-13.5
Gwerth uchaf
Maximum value (metres)
-27.2
System Gyfeirio Cydlynu Fertigol
Vertical CRS
urn:ogc:def:datum:EPSG::5100 Sea Level depth is unadjusted and does not take into account tidal height
 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Database ()

    Specification

    [A] Video files Streamed direct from camera in .asf format [B] Still images take direct from the sledge camera in jps format [C] Spreadsheet data (field notes - Start and Stop lat/longs and times from the video and field notes about the video taken opn board the boat [D] GIS data in MapInfo .tab file format (start and end points and vessel tracks for each station) [E] Marine Recorder data entry spreadsheets [F] Marine Recorder Survey MRCCW3170000000B

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
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

In June 2012 the Countryside Council for Wales undertook video tows for routine monitoring within the Pen Llyn a'r Sarnau Special Area of Conservation. Video was collected using a bespoke C-technics C-Vision Mantis HD video camera towed on a sledge from CCW's research vessel, Pedryn. Photographic stills (using a Canon 600/DD stills camera) were taken every 8 seconds along to tow to assist with habitat validation and utilised to inform species identification and augment species lists. Video was analysed for habitats, species and biotopes by Marine EcoSol using standard Marine Nature Conservation Review (MNCR) derived techniques and JNCC Marine Habitat Classification. Data was later entered into Marine Recorder by Marine EcoSol. GIS vessel tracks were exported from Boat GPS. GIS Start and end points and field notes also supplied.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • Video survey
  • drop-down video
  • benthic marine habitats
  • marine species
  • Pen Llyn a'r Sarnau SAC
  • North Llyn Modiolus site
  • baseline survey
  • protected sites
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2023-12-31
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
  • Zoobenthos taxonomic abundance
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Adolygu)
Date (Revision)
2021-01-06
Code
geonetwork.thesaurus.external.theme.rdf+xml
 

Spatial Reference System

Code
Latitude and Longitude (EPSG::4326)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CNC/NRW 2013. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313135353236 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder

NRW_DS114501
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-12-09T12:33:35.693Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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