Identification

Title

North Rona Annex I habitat map

Abstract

The aim of the survey was to map the seabed environment around North Rona. The survey will form the baseline for future management of the area to determine the scope and nature of any “appropriate assessment”. The survey area encompasses the seabed all around North Rona. In order to record and characterise the habitats around North Rona, Seastar Survey Ltd. undertook an acoustic and a ground-truthing survey (video/still photography survey) in 2009. The aim of the acoustic element of the survey was to identify different backscatter returns and describe as well as delineate the extent of the various seabed habitat types occurring around North Rona. A digital sidescan sonar mosaic, in conjunction with single beam echo sounder derived bathymetry, provided the initial broadview to map the substrata present throughout the survey area as well as allowing the identification of any features of interest. The aim of the ground-truthing element of the survey was to provide a description of the richness and diversity of the habitats on both rocky reef and the softer sediments. The biotope distribution and species composition was developed through interpretation of drop-down video footage and digital still photography, taken after evaluation of the sidescan mosaic. The results of all elements of the survey were used to create a Geographical Information System (GIS) which enabled a high level of processing, interpretation and display of the sidescan sonar mosaic, bathymetry, substrata types, biotopes and the digital photography.

Resource type

dataset

Resource locator

http://data.jncc.gov.uk/data/1d39618a-0b69-4ab9-9eb7-5bad3288ca86-GB001133.zip

name: GB001133.zip

Unique resource identifier

code

1d39618a-0b69-4ab9-9eb7-5bad3288ca86

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Additional information source

Axelsson, M., Dewey, S. and Doran, J. (2010). Broad scale mapping of the North Rona Special Area of Conservation (SAC). Scottish Natural Heritage Commissioned Report No 386.

Classification of spatial data and services

Topic category

biota

Keywords

Keyword set

keyword value

Marine

Seabed Habitats and Geology

GB001133

Corpulent

Habitats Directive - Annex I

RM0793

Nature Conservation

Drop camera

ROV

Side scan sonar

Single beam echo sounder

Geographic location

West bounding longitude

-5.855249

East bounding longitude

-5.799958

North bounding latitude

59.14022

South bounding latitude

59.11096

Temporal reference

Temporal extent

Begin position

2009-06-26

End position

2009-08-13

Dataset reference date

date type

publication

effective date

2009-08-13

Frequency of update

Quality and validity

Lineage

Seastar Survey Ltd. undertook an acoustic and a ground-truthing survey (video/still photography survey) in 2009. The aim of the acoustic element of the survey was to identify different backscatter returns and describe as well as delineate the extent of the various seabed habitat types occurring around North Rona. A digital sidescan sonar mosaic, in conjunction with single beam echo sounder derived bathymetry, provided the initial broadview to map the substrata present throughout the survey area as well as allowing the identification of any features of interest. The results of all elements of the survey were used to create a Geographical Information System (GIS) which enabled a high level of processing, interpretation and display of the sidescan sonar mosaic, bathymetry, substrata types, biotopes and the digital photography.

Conformity

Data format

name of format

Geospatial (vector polygon)

version of format

Unknown

Constraints related to access and use

Constraint set

Use constraints

Released under the Open Government Licence v3.0

Limitations on public access

No Limitations

Responsible organisations

Responsible party

organisation name

Digital and Data Solutions, JNCC

email address

data@jncc.gov.uk

responsible party role

owner

Metadata on metadata

Metadata point of contact

organisation name

Digital and Data Solutions, JNCC

email address

data@jncc.gov.uk

responsible party role

pointOfContact

Metadata date

2018-06-14

Metadata language