Bangor University School of Ocean Science (SOS) Towed Video Survey in Liverpool Bay; Caernarfon Bay and Cardigan Bay (2012 - 2013)

  • English
  • wel
  • All

In 2012 and 2013 video tows and photographic surveys were undertaken to ground truth the seabed around Cardigan Bay, Caernarfon Bay and Liverpool Bay. The Bangor University School of Ocean Sciences (SOS) surveyed five sites, two using fishing vessels and three using the Bangor University Research Vessel (RV) Prince Madog. In total sixty video tows were undertaken within circalittoral habitats; six of these had associated photographic stills, of which there were 570. The purpose of this data capture was to ground truth areas of the seabed around Cardigan Bay, Caernarfon Bay and Liverpool Bay. Confidence in this dataset is high as data was collected by scientists. Imagery was analysed using standard methods by competent and experienced surveyors.

Identification

Dynodydd
Identifier
NRW_DS115839
Teitl Amgen
Alternative Title
  • 2012 DRAFT Bangor University SOS Prince Madog Towed Video Survey in Liverpool Bay, October MRCCW31700000019
  • 2013 DRAFT Bangor University SOS Prince Madog Towed Video Survey of Caernarfon Bay, July. MRCCW31700000018
  • 2013 DRAFT Bangor University SOS Prince Madog Towed Video Survey in Cardigan Bay, July MRCCW31700000017
  • 2012 DRAFT Fisher Survey Towed Survey in Cardigan Bay, October MRCCW31700000016
  • 2013 DRAFT Bangor University SOS Prince Madog Towed Video Survey of Liverpool Bay, August MRCCW31700000015
  • Arolwg Fideo Llusg SOS Prifysgol Bangor ym Mae Lerpwl- Bae Caernarfon a Bae Ceredigion 2012 – 2013
Laith Metadata
Metadata Language
English
Lineage

Surveys were undertaken by Bangor University Research Vessel (RV) Prince Madog and various fishing vessels. RV Prince Madog was used to collect videos of the seabed using three cameras: - A Standard Definition (SD) ROVTECH Systems Ltd. underwater video camera with an approximate field of view of 41cm in the middle of the picture; - A High Definition (HD) GoPro video camera with approximate field of view of 70cm at the bottom of the picture and 100cm in the middle; - A Canon 400D stills camera with an approximate field of view of 0.13m squared (44cm by 30cm). Fishing vessels were used ot collect videos of the seabed using two cameras: - A GoPro HD video camera on a mini-sled towed behind a fishing vessel. The GoPro HD has approximate field of view of 70 cm at the bottom of the picture and 100 cm in the middle. - A Standard Definition ROVTECH Systems Micro Hi-Res Digital Colour Camera (1/3 inches Sony HAD CCD - 480 TV lines resolution) with 4.3 mm wide angle lens (approximately 80 degrees in water) and Mini Seabeam Light. Imagery was analysed for habitats, species and biotopes by Marine EcoSol using standard Marine Nature Conservation Review (MNCR) derived techniques and Joint Nature Conservation Committee (JNCC) Marine Habitat Classification. Photographic still, when taken, were approximately every 11 seconds along the tow to assist with species and habitat validation, but were not analysed independently of the video. Videos and stills were analysed by staff at Marine EcoSol and data was entered into excel spreadsheets and then into Marine Recorder.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2014-09-30
Perchennog
Owner
  University of Wales, Bangor. School of Ocean Sciences -
Bangor, Gwynedd, LL57 2DG
http://www.bangor.ac.uk
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  University of Wales, Bangor. School of Ocean Sciences -
Bangor, Gwynedd, LL57 2DG
http://www.bangor.ac.uk
 

Extent

Extent

Hyd
Geographic Extent
Celtic Sea
Hyd
Geographic Extent
Irish Sea
Hyd
Geographic Extent
Dee Estuary
Hyd
Geographic Extent
Liverpool Bay
Hyd
Geographic Extent
Menai Strait
Hyd
Geographic Extent
Tremadog Bay
Hyd
Geographic Extent
Cardigan Bay
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword

benthic boundary layer

Maint Fertigol
Vertical Extent

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
  • Movie ( )

    Specification

    [A] Video footage in .VOB and .mp4 format. The video data is actually part of the data previously supplied (see media 1466 and is stored there - low, moderate & high qulaity) In this folder is the moderate quality video. [B] Survey locations in .tab format [C] Marine Recorder data to be entered (data received 2014-09-31 - to be merged with the main database) MRCCW31700000015 - 2013 DRAFT Bangor University SOS Prince Madog Towed Video Survey of Liverpool Bay, August. MRCCW31700000016 - 2012 DRAFT Fisher Survey Towed Survey in Cardigan Bay, October. MRCCW31700000017 - 2013 DRAFT Bangor University SOS Prince Madog Towed Video Survey in Cardigan Bay, July. MRCCW31700000018 - 2013 DRAFT Bangor University SOS Prince Madog Towed Video Survey of Caernarfon Bay, July. MRCCW31700000019 - 2012 DRAFT Bangor University SOS Prince Madog Towed Video Survey in Liverpool Bay, October.

 

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

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

Surveys were undertaken by Bangor University Research Vessel (RV) Prince Madog and various fishing vessels. RV Prince Madog was used to collect videos of the seabed using three cameras: - A Standard Definition (SD) ROVTECH Systems Ltd. underwater video camera with an approximate field of view of 41cm in the middle of the picture; - A High Definition (HD) GoPro video camera with approximate field of view of 70cm at the bottom of the picture and 100cm in the middle; - A Canon 400D stills camera with an approximate field of view of 0.13m squared (44cm by 30cm). Fishing vessels were used ot collect videos of the seabed using two cameras: - A GoPro HD video camera on a mini-sled towed behind a fishing vessel. The GoPro HD has approximate field of view of 70 cm at the bottom of the picture and 100 cm in the middle. - A Standard Definition ROVTECH Systems Micro Hi-Res Digital Colour Camera (1/3 inches Sony HAD CCD - 480 TV lines resolution) with 4.3 mm wide angle lens (approximately 80 degrees in water) and Mini Seabeam Light. Imagery was analysed for habitats, species and biotopes by Marine EcoSol using standard Marine Nature Conservation Review (MNCR) derived techniques and Joint Nature Conservation Committee (JNCC) Marine Habitat Classification. Photographic still, when taken, were approximately every 11 seconds along the tow to assist with species and habitat validation, but were not analysed independently of the video. Videos and stills were analysed by staff at Marine EcoSol and data was entered into excel spreadsheets and then into Marine Recorder.
 

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
  • digital photography
  • drop-down video
  • photomonitoring (photographic monitoring)
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2026-03-04
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2024-06-19
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

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 owned by Natural Resources Wales (NRW). 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

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

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313135383339 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
2026-06-26T08:03:11.353Z
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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