2011 Scottish Natural Heritage (SNH) biological analyses of Marine Scotland Science (MSS) Little Loch Broom Leptometra celtica benthic camera survey
The purpose of this benthic survey (cruise 1511A) in Little Loch Broom was to improve knowledge of the occurrence and distribution of species and habitats of recognised conservation importance, particularly priority marine features (PMFs). An underwater video and still photograph survey was conducted by MSS for MSS on the 2nd November 2011 to collect detailed biological information on the seabed species and habitat features present. Drop-down video drift tows were undertaken at 9 sites within the loch. The images, analysed under SNH contract by Dr Colin Moore, were used to describe the nature of the seabed in terms of the physical structure and the species assemblages. MSS used the vessel MRV Alba na Mara for this survey - footage was collected from East Shiant Bank and the Little Minch on the same cruise.
dataset
GB-SCT-SNH-ME-000178-MRSNH0180000001B-LLB
http://www.nature.scot
eng
urn:ogc:def:crs:EPSG::4326
Moore, C.G. (2012). An assessment of the conservation importance of benthic epifaunal species and habitats identified during a series of research cruises around NW Scotland and Shetland in 2011. Scottish Natural Heritage Commissioned Report No. 507
biota
biota
revision
2008-01-06
revision
2009-11-16
creation
2011-02-16
creation
2011-07-06
creation
2012-03-16
revision
2005-04-27
creation
2006-08-31
creation
2017-05-12
-5.4078
-5.3882
57.9157
57.9031
creation
2009-06-18
Minches & Western Scotland
creation
2009-05-01
44E4
revision
2010-01-01
circalittoral
revision
2010-01-01
infralittoral
2011-11-02
2011-11-02
publication
2012-12-31
notPlanned
This subtidal seabed data from the outer sill region of Little Loch Broom was collected by MSS on the 2nd November 2011 onboard the vessel MRV Alba na Mara. Video images were obtained from 9 drop-down video drift tows deployed just above the seabed to determine the distribution of Leptometra celtica fields. The camera frame also carried a digital stills camera, which took vertically orientated photographs of the seabed at regular intervals, and a laser scaling system. Positional, time and depth data are available for the start and end of video runs, with depths and positions also available at 10 second intervals for this survey. Analyses of the video footage was undertaken by Dr Colin Moore, contracted by SNH, to describe the physical structure and species assemblages present. Based on the physical and biological attributes, biotopes were allocated. Species present were identified and quantified using the semi-quantitative MNCR SACFOR scale, as far as possible. Where video runs traversed a sequence of biotopes, the runs are split into corresponding segments with the transition points recorded using time. Segmentation of runs was not practicable in the case of mosaics of recurring biotopes, in which case all biotopes observed were simply listed. Runs and run segments were assessed for the presence PMFs, as well as for the presence of species and habitats of recognised conservation importance according to a number of additional criteria, including citation on the following lists: the IUCN Red List of Threatened Species (lower risk category), the OSPAR List of Threatened and/or Declining Species and Habitats and the Scottish Biodiversity List.
publication
2018-01-23
true
See the referenced specification
Not for navigational use; This survey recorded no species or biotope occurrences that SNH consider as sensitive; all records may therefore be released in response to requests covered by Environmental Information Regulations or Freedom of Information Regulations; additionally its re-use and dissemination is permissible under Open Government Licence terms. Any re-use of this data will acknowledge the copyright owner.
No restrictions on public access
Consultant
Colin Moore
originator
Data Manager
Scottish Natural Heritage (SNH), Headquaters
Great Glen House, Leachkin Road
Inverness
IV3 8NW
01463 725000
custodian
Data Manager
Scottish Natural Heritage (SNH), Headquaters
Great Glen House, Leachkin Road
Inverness
IV3 8NW
01463 725000
pointOfContact
2020-03-05