Identification

Title

Species point records from 1985 Smith Loch Sween littoral survey

Abstract

Loch Sween is situated on the east side of the Sound of Jura, in south-west Scotland. It opens to the south-west and its mouth is partially protected by the small MacCormaig Isles. The main body of the loch is relatively straight, with a fringe of rocks or gravel giving way to a sandy or muddy seabed. There are a number of arms to the loch which add considerably to the diversity of habitats present. Linne Mhuirich forms an arm to the west, with a constricted mouth into Loch Sween forming an area of tidal rapids. At the head of the loch, arms include the silled Caol Scotnish. Adjacent to Loch Sween, once connected to it but now separated by causeway, is Loch na Cille. Loch Sween has been proposed as a Marine Nature Reserve by NCC on account of the high scientific interest and conservation importance of the habitats and communities within the loch. Although a site of historical marine biological recording and research, NCC commissioned extensive systematic littoral and sublittoral surveys in 1982. Further information was required on the distribution and types of littoral habitats and communities present to assess the relative importances of individual areas and the integrated importance of the whole loch. The aims of the shore surveys in 1985 were; to investigate the shores around Ceann an t-Sailein; to assess any temporal variation in faunal communities, particularly molluscan, in the Linne Mhuirich area; and to describe the shores of Loch na Cille. Survey work was carried out during spring and autumn visits. Descriptions of all the sites are included in the report, which also contains a detailed species list and tables showing the numbers of Mollusca associated with algae. The discussion is limited to a summary of the more important information found during the spring surveys. The report concludes that Ceann an t-Sailein adds another habitat type (a shallow tidal bay with a clay floor) to those already known in Loch Sween. Several community types were recorded from the sediment shores. Further variability in molluscan populations was noted but showed no clear pattern which could be related to seasonality. Several mollusc species new to Loch Sween were recorded. Records currently considered sensitive have been removed from this dataset.

Resource type

dataset

Resource locator

http://data.jncc.gov.uk/data/51fd951e-2d6a-4493-9daa-c9d372c12261-1985-Smith-Loch-Sween-littoral-survey.csv

name: 1985-Smith-Loch-Sween-littoral-survey.csv

Unique resource identifier

code

51fd951e-2d6a-4493-9daa-c9d372c12261

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Additional information source

Smith (1986) The shores of Loch Sween - 1985

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

Marine

Marine Recorder

JNCCMNCR10000099

MNCR

Species

Geographic location

West bounding longitude

-5.711261106

East bounding longitude

-5.566970579

North bounding latitude

56.05569254

South bounding latitude

55.88508515

Temporal reference

Temporal extent

Begin position

1985-04-03

End position

1985-09-01

Dataset reference date

date type

publication

effective date

1999-05-20

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

eng