Fisher Towed Survey in Cardigan Bay 2012
Surveys of seabed in Cardigan Bay, carried out by the School of Ocean Sciences (SOS), Bangor University, in October 2012, as part of European Fisheries Fund (EFF) funded research into fisheries and seabed habitats. The main aim of the survey work was to assess the characteristics and status of offshore benthic habitats, and primarily whether cobble reef habitat was present, as part of a study on the effects of scallop dredging.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS115569
- Alternative Title
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- 2012 DRAFT Fisher Towed Video Survey in Cardigan Bay, October MRCCW3160000000F
- Arolwg Llusg Pysgotwr ym Mae Ceredigion, 2012
- Metadata Language
- English
- Lineage
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Drop-down video tows were carried out with a GoPro video camera attached to a mini-sled towed behind a fishing boat. Continuous video footage was recorded onto MP3 files. A manual log was kept of the position and time at the start and end of transect while the camera was on the bottom. The tow lengths ranged from 150m to 1206m and seabed consisted primarily of sands and gravels with some pebbles and cobbles. Videos were analysed by a marine biological surveyor to record information on habitat character, conspicuous species and their abundance. The videos were analysed by Coastal Assessment, Liaison and Monitoring (CALM) to describe the seabed habitats and communities and assign them to biotopes. Analysis by CALM staff estimated abundance of all identifiable taxa using the SACFOR abundance scale. Habitat descriptions and assignment of biotopes from the national biotope classification to each record were also recorded. Analysis included a QA process to validate and verify the recorded data.
- Additional Information
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Lambert, G.I., Murray L.G., Kaiser M.J., Salomonsen H., Cambie, G. (2013) Welsh waters scallop survey - Cardigan Bay to Liverpool Bay July-August 2013. Bangor University, Fisheries and Conservation Report No. 30. Bangor University. Albrecht, J. K. (2013). Taxonomic and functional recovery of epifauna after the permanent closure of an area of the Cardigan Bay Special Area of Conservation (SAC), Wales, to a scallop dredge fishery. MSc thesis, Bangor University, Fisheries and Conservation report No. 28, Pp.81
- Dataset Reference Date (Publication)
- 2012-12-31
Extent
Extent
- Geographic Extent
- SIR CEREDIGION - CEREDIGION
))
Vertical Extent
- Medin Extent Keyword
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benthic boundary layer
Distribution
- Format Type and Description
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Movie
()
- Specification
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[A] Digital videos in .MP4 files. [B] Field logs of dates, start and end positions (Lat/Long) and times for tows etc in Excel spreadsheets. [C] Analysis data (by CALM) in Excel spreadsheets and Marine Recorder (NBN) datafile. Marine Recorder Survey key: MRCCW3160000000F
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Movie
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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Drop-down video tows were carried out with a GoPro video camera attached to a mini-sled towed behind a fishing boat. Continuous video footage was recorded onto MP3 files. A manual log was kept of the position and time at the start and end of transect while the camera was on the bottom. The tow lengths ranged from 150m to 1206m and seabed consisted primarily of sands and gravels with some pebbles and cobbles. Videos were analysed by a marine biological surveyor to record information on habitat character, conspicuous species and their abundance. The videos were analysed by Coastal Assessment, Liaison and Monitoring (CALM) to describe the seabed habitats and communities and assign them to biotopes. Analysis by CALM staff estimated abundance of all identifiable taxa using the SACFOR abundance scale. Habitat descriptions and assignment of biotopes from the national biotope classification to each record were also recorded. Analysis included a QA process to validate and verify the recorded data.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- Video survey
- benthic marine habitats
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Habitat characterisation
- Zoobenthos taxonomic abundance
- Seabed photography
- 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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Video Footage and Images: This dataset is wholly owned by School of Ocean Sciences, Bangor University. Enquirers are advised to obtain a copy from the owner/originator directly, rather than NRW. NRW may NOT publish or disseminate it in its entirety. Species Data: Species data is wholly owned by Natural Resources Wales (NRW). 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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Video Footage and Images: © School of Ocean Sciences, Bangor University. NRW does NOT grant permission to third parties to re-use or disseminate this dataset. Species Data: © 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 copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313135353639 XML
- Metadata Language
- English
- Parent Identifier
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Bangor University School of Ocean Science (SOS) Towed Video Survey in Liverpool Bay; Caernarfon Bay and Cardigan Bay (2012 - 2013)
NRW_DS115839
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:29:25.525Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0