Identification

Title

2010 Scottish Natural Heritage (SNH) biological analyses of Marine Scotland Science (MSS) North Westray seabed camera survey

Abstract

The purpose of this benthic survey off North Westray was to improve knowledge of the occurrence and distribution of species and habitats of recognised conservation importance, particularly priority marine features (PMFs), and to ground-truth multibeam data. An underwater video and still photograph survey was conducted by MSS for MSS on the 10th of September 2010 to collect detailed biological information on the seabed species and habitat features present. Drop-down video drift tows were undertaken at 1 site in an area of rapid currents in Westray Firth. 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.

Resource type

dataset

Resource locator

Unique resource identifier

code

GB-SCT-SNH-ME-000138-MRSNH01800000007-NW

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. and Roberts, J. M. (2011). An assessment of the conservation importance of species and habitats identified during a series of recent research cruises around Scotland. Scottish Natural Heritage Commissioned Report No. 446.

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

GEMET - INSPIRE themes, version 1.0

reference date

date type

revision

effective date

2008-01-06

Keyword set

keyword value

originating controlled vocabulary

title

SeaDataNet P021 parameter discovery vocabulary

reference date

date type

revision

effective date

2009-11-16

Keyword set

keyword value

originating controlled vocabulary

title

INSPIRE THEMES

reference date

date type

creation

effective date

2011-02-16

Keyword set

keyword value

originating controlled vocabulary

title

GEMET

reference date

date type

creation

effective date

2011-07-06

Keyword set

keyword value

originating controlled vocabulary

title

Gardline

reference date

date type

creation

effective date

2012-03-16

Keyword set

keyword value

originating controlled vocabulary

title

International Standards Organisation ISO19115 Topic Categories

reference date

date type

revision

effective date

2005-04-27

Keyword set

keyword value

originating controlled vocabulary

title

Global Change Master Directory Science Keywords V5

reference date

date type

creation

effective date

2006-08-31

Keyword set

keyword value

originating controlled vocabulary

title

INSPIRE

reference date

date type

creation

effective date

2017-05-12

Geographic location

West bounding longitude

-2.8981

East bounding longitude

-2.8673

North bounding latitude

59.1997

South bounding latitude

59.1778

Extent

Extent group

authority code

title

Charting Progress 2 Sea Areas

reference date

date type

creation

effective date

2009-06-18

code identifying the extent

Scottish Continental Shelf

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

47E7

Extent group

authority code

title

International Hydrographic Bureau, Limits of Oceans and Seas

reference date

date type

creation

effective date

1954-01-01

code identifying the extent

North Atlantic Ocean

Extent group

authority code

title

SeaDataNet vertical extent keywords

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

circalittoral

Extent group

authority code

title

SeaDataNet vertical extent keywords

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

infralittoral

Temporal reference

Temporal extent

Begin position

2010-09-10

End position

2010-09-10

Dataset reference date

date type

publication

effective date

2011-12-31

Frequency of update

notPlanned

Quality and validity

Lineage

This subtidal seabed data from Westray Firth, North Westray, was collected by MSS on the 10th September 2010. Video images were obtained from a drop-down video camera system deployed just above the seabed. The camera frame also carried a digital stills camera, which took vertically orientated photographs of the seabed at one minute intervals. Positional date was only available for the start and end of the run. Depth data were not supplied, and so approximate values were derived from plots of the positions of the starts and ends of runs on digital Admirality charts. 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.

Conformity

Conformity report

specification

title

MEDIN data guideline for video surveys of species and benthos.

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 for navigational use; This survey recorded no species or biotope occurences 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 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

Consultant

organisation name

No organisation

email address

c.g.moore84@gmail.com

responsible party role

originator

Responsible party

contact position

Data Manager

organisation name

Scottish Natural Heritage, Inverness

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, Inverness

email address

data_supply@nature.scot

responsible party role

pointOfContact

Metadata date

2019-10-14

Metadata language

eng