Identification

Title

2000 National Oceanography Centre Southampton (NOC), Poole Bay Dorset, Maerl density and distribution dive quadrat survey

Abstract

A qualitative pipe-dredge survey was undertaken by Ken Collins and Jenny Mallinson in 1990 as part of a proposed oil pipeline environmental impact assessment, and has formed the basis for this quantitative diving survey. Six days diving were carried out during the summer of 2000 with the help of volunteers. Since tidal currents are strong in the survey area, surveys were carried out around the slack periods during neap tides. Typically 3 pairs of divers were deployed at 100m spacing. Each pair collected all the live maerl from within two 0.5m2 quadrats at the drop point and then moved with the current some 100m to repeat the exercise. Over 110 samples were collected, dried and weighed to give a quantitative measure of the maerl density and distribution. Drift dives were also carried out to confirm the general pattern of distribution. The samples entered here record the presence of live maerl and have been provided electronically by Dr Ken Collins to Dorset Environmental Records Centre for inclusion on the Dorset Marine Biodiversity Database. Please note, these records have also been incorporated into subsequent reports written by the same author.

Resource type

dataset

Resource locator

Unique resource identifier

code

MRLRC00100000552

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

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

Classification of spatial data and services

Topic category

biota

Keywords

Keyword set

keyword value

effective date

2011-07-06

Geographic location

West bounding longitude

-1.9367

East bounding longitude

-1.8861

North bounding latitude

50.6570

South bounding latitude

50.6056

30E8

Temporal reference

Temporal extent

Begin position

1999-07-01

End position

2000-07-16

Dataset reference date

date type

publication

effective date

2013-01-25

date type

creation

effective date

2000-07-16

date type

revision

effective date

2013-01-25

Frequency of update

notPlanned

Quality and validity

Lineage

These records all relate to 'Collins, K.J., Mallinson, J.J. (2000) Dorset Biodiversity. Maerl Survey, Poole Bay 2000' A copy of the report is held at Dorset Environmental Records Centre. A qualitative pipe-dredge survey was undertaken by Ken Collins and Jenny Mallinson in 1990 as part of a proposed oil pipeline environmental impact assessment, and has formed the basis for this quantitative diving survey. Six days diving were carried out during the summer of 2000 with the help of volunteers. Since tidal currents are strong in the survey area, surveys were carried out around the slack periods during neap tides. Typically 3 pairs of divers were deployed at 100m spacing. Each pair collected all the live maerl from within two 0.5m2 quadrats at the drop point and then moved with the current some 100m to repeat the exercise. Over 110 samples were collected, dried and weighed to give a quantitative measure of the maerl density and distribution. Drift dives were also carried out to confirm the general pattern of distribution. The samples entered here record the presence of live maerl and have been provided electronically by Dr Ken Collins to Dorset Environmental Records Centre for inclusion on the Dorset Marine Biodiversity Database. Please note, these records have also been incorporated into subsequent reports written by the same author.

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Data is freely available for research or commercial use providing that the originators are acknowledged in any publications produced.

Constraint set

Limitations on public access

No restrictions to public access

Responsible organisations

Responsible party

organisation name

National Oceanography Centre (NOC), Southampton

email address

kjc@noc.soton.ac.uk

responsible party role

originator

Responsible party

contact position

Record Centre Manager

organisation name

Dorset Environmental Record Centre

email address

c.a.steele@dorsetcc.gov.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

Living Seas Manager

organisation name

Dorset Wildlife Trust

email address

Enquiries@derc.org.uk

responsible party role

pointOfContact

Metadata date

2021-03-25

Metadata language

eng