Identification

Dynodydd

Identifier

NRW_DS115526

Teitl Amgen

Alternative Title

• 2012 CCW North Pen Llŷn Drop Down and Towed Video Monitoring (MRCCW3170000000B)

Laith Metadata

Metadata Language

English

Lineage

Survey data were collected by the Countryside Council for Wales (CCW) in June 2012 using a C-Technics C-Vision Mantis HD video camera mounted on a towed sledge and deployed from the research vessel Pedryn. Thirty video tows were undertaken across circalittoral habitats within the northern part of Pen Llŷn a'r Sarnau SAC. A Canon 600D digital camera system was used to capture photographic stills at approximately eight-second intervals along each tow to assist with habitat validation, species identification and enhancement of species records.

Video footage was analysed by Marine Ecological Solutions (Marine EcoSol) using standard Marine Nature Conservation Review (MNCR)-derived survey methodologies and the JNCC Marine Habitat Classification. Quality assurance procedures included independent re-analysis of approximately 5% of video tows and verification of at least 10% of data entry records. The validated habitat, species and biotope data were entered into Marine Recorder by Marine EcoSol. Supporting spatial data, including vessel track information exported from onboard GPS systems, start and end locations, and field survey notes, were retained with the survey records. The resulting dataset contributes to the long-term monitoring programme for marine habitats within Pen Llŷn a'r Sarnau SAC and supports evidence-based conservation management.

Dyddiad cyfeirnod y set ddata (Cyhoeddiad)

Dataset Reference Date (Publication)

2013-03-28

Extent

Extent

Hyd

Geographic Extent

Wales (WLS)

N

W

E

S

 

Distribution

Quality

Keywords

Spatial Reference System

Content

Constraints