Identification

Title

2012 Scottish Natural Heritage (SNH) Loch Fyne and Clyde Sea benthic camera and infaunal grab survey

Abstract

The main aim of this investigation in Loch Fyne and Clyde Sea was to improve knowledge of the occurrence and distribution of the species and habitats, especially PMFs. A drop-down video survey and a grab survey of benthic habitats was undertaken by SNH from the 12th to 18th March 2012. Underwater video footage was collected using DDV camera system at 108 sites in Loch Fyne, Inchmarnock, Arran, Kilbrannan Sound and Clyde Sill. Analysis of seabed video and still photographic imagery is used to describe the nature of the seabed in terms of the physical structure and the species assemblages. Runs and run segments were assessed for the presence of protected features and other PMFs, as well as for the presence of species and habitats of recognised conservation importance. On the same survey, SNH collected grab samples for infaunal analysis at 28 stations in the Clyde Sea for Marine Scotland. The SEPA vessel Sir John Murray was used for this survey work.

Resource type

dataset

Resource locator

Unique resource identifier

code

GB-SCT-SNH-ME-000184-MRSNH01800000027-LFCS

codeSpace

http://www.nature.scot

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::4326

Additional information source

Moore, C. G. & Atkinson, R. J. A. (2012). Biological analyses of underwater video from research cruises in the Clyde Sea, Loch Torridon and the Inner Sound, the North Minch, Loch Eriboll and off Orkney. Scottish Natural Heritage Commissioned Report No. 536; Allen, J.H. 2013. Infaunal analysis of grab samples collected from the Clyde Sea, in March 2012. Scottish Natural Heritage Commissioned Report No. 539.

Classification of spatial data and services

Topic category

biota

biota

Keywords

Keyword set

keyword value

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2008-01-06

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2009-11-16

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

creation

effective date

2011-02-16

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

creation

effective date

2003-01-01

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

creation

effective date

2011-07-06

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2005-04-27

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

creation

effective date

2006-08-31

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

creation

effective date

2017-05-12

Geographic location

West bounding longitude

-5.5996

East bounding longitude

-4.7822

North bounding latitude

56.3023

South bounding latitude

55.0615

Extent

Extent group

authority code

title

reference date

date type

creation

effective date

2009-06-18

code identifying the extent

Irish Sea

Extent group

authority code

title

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

39E4

Extent group

authority code

title

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

40E4

Extent group

authority code

title

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

41E4

Extent group

authority code

title

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

39E5

Extent group

authority code

title

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

40E5

Extent group

authority code

title

reference date

date type

creation

effective date

1954-01-01

code identifying the extent

Inner Seas off the West Coast of Scotland

Extent group

authority code

title

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

circalittoral

Extent group

authority code

title

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

infralittoral

Temporal reference

Temporal extent

Begin position

2012-03-12

End position

2012-03-18

Dataset reference date

date type

publication

effective date

2013-12-31

Frequency of update

notPlanned

Quality and validity

Lineage

This subtidal seabed data from Loch Fyne and Clyde sea was collected by SNH on board Sir John Murray on the 12th and 18th March 2012. Video images were obtained from 108 drop-down video drift tows. Track and depth data are available from a video overlay system. No HD footage was recorded on this survey. SNH contracted Dr Colin Moore to analyse the video footage to describe the physical structure and species assemblages present. 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 of PPFs and other 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. Grab samples were collected at 28 stations, undertaken over the same survey period as drop down video. At each station, a single grab was collected using a 0.1m2 Day grab. A total of 28 infaunal samples were collected during the survey, once onboard each infaunal sample was passed through a 1mm mesh sieve and the infaunal sieve residue retained and fixed with buffered formalin for subsequent analysis. A small sub-sample of the grab was removed for PSA analysis and stored in plastic bags before being frozen. Precision Marine Limited were contracted by SNH to undertake infaunal analysis of the grab samples. This included infaunal identification, PSA, assigning of a biotope to each sample, and identification of protected features. All laboratory methodologies were based on best practice and Precision Marine Survey Ltd is a member of the NMBAQC.

Conformity

Conformity report

specification

title

reference date

date type

publication

effective date

2011-02-02

degree

true

explanation

See the referenced specification

Conformity report

specification

title

reference date

date type

publication

effective date

2018-01-23

degree

true

explanation

See the referenced specification

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Not to be used for navigation. This survey recorded no species or biotope occurences that SNH consider as sensititive; 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 permissable under Open Government Licence terms. Any re-use of this data will acknowledge the copyright owner.

Constraint set

Limitations on public access

No restrictions on public access

Responsible organisations

Responsible party

contact position

Data Manager

organisation name

Precision Marine Survey Limited

email address

dassh.enquiries@mba.ac.uk

responsible party role

originator

Responsible party

contact position

Consultant

organisation name

Colin Moore

email address

c.g.moore84@gmail.com

responsible party role

originator

Responsible party

contact position

Data Manager

organisation name

Scottish Natural Heritage (SNH), Headquaters

full postal address

Great Glen House, Leachkin Road

Inverness

IV3 8NW

telephone number

01463 725000

email address

data_supply@nature.scot

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

Data Manager

organisation name

Scottish Natural Heritage (SNH), Headquaters

full postal address

Great Glen House, Leachkin Road

Inverness

IV3 8NW

telephone number

01463 725000

email address

data_supply@nature.scot

responsible party role

pointOfContact

Metadata date

2020-02-12

Metadata language