Identification

Title

Habitat point records from 1970 Ridley north-west Scotland sublittoral photographic survey

Abstract

Gordon Ridley is a lecturer is photography at Glasgow University and also a professional underwater photographer. It was felt that it would be of value for the NCC to analyse his considerable underwater slide collection pertaining to north-west Scotland. the area for which slides were investigated is from Loch Fyne, near Inverary (NR 9080) in the south, to Whiten Head, east of Cape Wrath (NC 500 686) in the north and extends as far west as St Kilda. Slides from 16 sites were investigated, some 534 slides in total. Copies were made for the NCC. The species present at each site are summarised in tabular form with detailed annotated species lists in seperate tables. In these lists details of substratum, abundance and association with other species is given. A general description of each site in terms of habitats and communities present is given where enough slides were available. It was possible to get a good idea of the main features of each site and the species present. Of particular interest was the occurrence of a distinctive community - the Dendrodoa grossularia/Clathrina coriacea community - present at/near Cape Wrath. Another recognisable community that occurs in sounds exposed to very strong tidal streams is the Tubularia indivisa - Halichondria panicea community. Some photographs from St Kilda show large areas of sloping rock covered by T. indivisa and a yellow encrusting sponge that cannot be identified from the slides. Species of particular interest were Parazoanthus anguicomus recorded at St Kilda and Whiten Head, which although not rare is occasionally recorded around Scotland and Protanthea simplex only recently discovered in Great Britain, but now with several records from the coast of west Scotland. Records currently considered sensitive have been removed from this dataset.

Resource type

dataset

Resource locator

http://data.jncc.gov.uk/data/230057dc-eee8-4ff4-89bc-57d34fc74abf-1970-Ridley-north-west-Scotland-sublittoral-photographic-survey.csv

name: 1970-Ridley-north-west-Scotland-sublittoral-photographic-survey.csv

Unique resource identifier

code

230057dc-eee8-4ff4-89bc-57d34fc74abf

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Additional information source

Dipper (1981) Gordon Ridley's underwater photographs of north-west Scotland: an analysis

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

Marine

Marine Recorder

JNCCMNCR10000063

Habitat

MNCR

Geographic location

West bounding longitude

-8.187253418

East bounding longitude

-4.585761387

North bounding latitude

58.63683852

South bounding latitude

55.1459238

Temporal reference

Temporal extent

Begin position

1970-01-01

End position

1970-12-31

Dataset reference date

date type

publication

effective date

2001-08-21

Frequency of update

Quality and validity

Lineage

This survey was extracted from a Marine Recorder snapshot.

Conformity

Data format

name of format

Comma Separated Values

version of format

Unknown

Constraints related to access and use

Constraint set

Use constraints

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

custodian

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

2018-05-17

Metadata language