Marine Monitoring Drop-Down Video around North Llyn Special Area of Conservation ( SAC ) 2012
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
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS115526
- 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
- 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
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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)).
- Dataset Reference Date (Publication)
- 2013-03-28
Temporal Extent
- Begin date
- 2012-06-01
- End date
- 2012-06-30
- Topic category
-
- Biota
- Oceans
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
- benthic boundary layer
Vertical Extent
- Minimum value (metres)
- -13.5
- Maximum value (metres)
- -27.2
- Vertical CRS
- urn:ogc:def:datum:EPSG::5100 Sea Level depth is unadjusted and does not take into account tidal height
Distribution
- Format Type and Description
-
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Database
()
- Specification
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[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
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Database
()
Quality
Data quality
- Quality Scope
- Dataset
- 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
Keywords
Keywords
- NRW Thesaurus
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- Video survey
- drop-down video
- benthic marine habitats
- marine species
- Pen Llyn a'r Sarnau SAC
- North Llyn Modiolus site
- baseline survey
- protected sites
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Zoobenthos taxonomic abundance
- Type
- Theme
Citation
- Date (Revision)
- 2021-01-06
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© 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
- File Identifier
- 4f4c4942-4343-5764-6473-313135353236 XML
- Metadata Language
- English
- Parent Identifier
-
Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501
- Resource type
- Dataset
- Metadata Date
- 2024-12-09T12:33:35.693Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0