Identification

Title

1995 Purbeck Marine Research Unit, Canford School, Handfast Point to Ballard Point, Ross Coral Mapping Project

Abstract

These records all relate to "Powell (ed) (1995) - Ross Coral Mapping Project 1995". A copy of the report is held at English Nature (Dorset Team). Following on from the survey work carried out in 1994, thirteen survey dives were undertaken in 1995 to provide further information on the extent of the Ross Coral colonies between Handfast Point and Ballard Point. Drift dives were used to make transects of the area. GPS/Decca navigation on the charter vessel Sea Ranger was used to pinpoint the position of divers at the start, during and at the end of the dive (following the diver's Surface Marker Buoy). The majority of dives were made at a working depth of 15-20m. Ross coral was found to be in the greatest abundance at 50'37.90N 01'55.00W. The largest colonies seen (50cm diameter) were in the area of more extensive chalk outcrops and ridges. The cobbles, small boulder and chalk ridges, that provide the most suitable substrate for attachment, change to gravel and sand, both unsuitable for the attachment of Ross coral, to the north (Poole Bay) and to the south (Swanage Bay) of the main survey area. The deeper water (>20m) to the west of the survey area has not yet been explored but its likely that Ross coral should occur if there is suitable substrate. Underwater photography was used extensively.

Resource type

dataset

Resource locator

Unique resource identifier

code

MRLRC00100000533

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::27700

Classification of spatial data and services

Topic category

biota

imageryBaseMapsEarthCover

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

INSPIRE THEMES

reference date

date type

creation

effective date

2011-02-16

Keyword set

keyword value

originating controlled vocabulary

title

UNESCO

reference date

date type

creation

effective date

2003-01-01

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

SeaDataNet P021 parameter discovery vocabulary

reference date

date type

revision

effective date

2009-11-16

Geographic location

West bounding longitude

-1.9332

East bounding longitude

-1.8826

North bounding latitude

50.6556

South bounding latitude

50.6264

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

Eastern Channel

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

29E7

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

30E7

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

29E8

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

30E8

Temporal reference

Temporal extent

Begin position

1995-05-05

End position

1995-10-18

Dataset reference date

date type

publication

effective date

2013-02-12

Frequency of update

notPlanned

Quality and validity

Lineage

Survey run by Canford School, Dorset. These records all relate to "Powell (ed) (1995) - Ross Coral Mapping Project 1995". A copy of the report is held at English Nature (Dorset Team). Following on from the survey work carried out in 1994, thirteen survey dives were undertaken in 1995 to provide further information on the extent of the Ross Coral colonies between Handfast Point and Ballard Point. Drift dives were used to make transects of the area. GPS/Decca navigation on the charter vessel Sea Ranger was used to pinpoint the position of divers at the start, during and at the end of the dive (following the diver's Surface Marker Buoy). The majority of dives were made at a working depth of 15-20m. Ross coral was found to be in the greatest abundance at 50'37.90N 01'55.00W. The largest colonies seen (50cm diameter) were in the area of more extensive chalk outcrops and ridges. The cobbles, small boulder and chalk ridges, that provide the most suitable substrate for attachment, change to gravel and sand, both unsuitable for the attachment of Ross coral, to the north (Poole Bay) and to the south (Swanage Bay) of the main survey area. The deeper water (>20m) to the west of the survey area has not yet been explored but its likely that Ross coral should occur if there is suitable substrate. Underwater photography was used extensively.

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

contact position

Headmaster

organisation name

Canford School

email address

office@canford.com

responsible party role

originator

Responsible party

contact position

Data Manager

organisation name

Natural England

full postal address

Foss House, Kings Pool, 1-2 Peasholme Green

York

YO1 7PX

telephone number

+44 (0)300 060 3900

facsimile number

+44 (0)300 060 2356

email address

enquiries@naturalengland.org.uk

responsible party role

custodian

Responsible party

contact position

Marine Data Manager

organisation name

Natural England

full postal address

Foss House, Kings Pool, 1-2 Peasholme Green

York

YO1 7PX

telephone number

+44 (0)300 060 3900

facsimile number

+44 (0)300 060 2356

email address

enquiries@naturalengland.org.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

2021-04-16

Metadata language

eng