Identification

Title

2016 Devon and Severn IFCA Taw Torridge Mussel Stock Assessment

Abstract

Since 2012 Devon and Severn IFCA has carried out stock assessments on the public mussel beds on the Taw-Torridge Estuary, North Devon. These surveys determine the area of each bed, the density of mussels, the percentage cover, and the estimated stock (in tonnes), and marketable stock (mussels greater than 50mm in length) for each bed, and are used to assess the condition of the bed and whether the bed could support a viable mussel fishery.

Resource type

dataset

Resource locator

http://www.devonandsevernifca.gov.uk

description: A link to the general host site

Unique resource identifier

code

DSIFCATTMussels2016

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

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2008-01-06

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2009-11-16

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

creation

effective date

2011-07-06

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

creation

effective date

2006-08-31

Geographic location

West bounding longitude

-4.2184

East bounding longitude

-4.1439

North bounding latitude

51.0864

South bounding latitude

51.0501

Extent

Extent group

authority code

title

reference date

date type

creation

effective date

1954-01-01

code identifying the extent

Bristol Channel

Extent group

authority code

title

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

littoral

Extent group

authority code

title

reference date

date type

creation

effective date

2014-05-16

code identifying the extent

VIIf

Temporal reference

Temporal extent

Begin position

2016-04-06

End position

2016-04-10

Dataset reference date

date type

publication

effective date

2016-12-19

date type

creation

effective date

2016-12-19

date type

revision

effective date

2016-12-19

Frequency of update

annually

Quality and validity

Lineage

Data is collected by Devon and Severn IFCA, during March or April each year. Transects are walked across each mussel bed using the Dutch Wand method of surveying, data on the extent of each bed was also used to create GIS layers of the area of the beds. Results are compared to those from previous years.

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. Charts are not to be used for navigation.

Constraint set

Limitations on public access

Contact Devon and Severn Inshore Fisheries and Conservation Authority to request full report: office@devonandsevernifca.gov.uk, 01803 854648

Responsible organisations

Responsible party

organisation name

Devon and Severn Inshore Fisheries and Conservation Authority

email address

k.gray@devonandsevernifca.gov.uk

responsible party role

originator

Responsible party

organisation name

Devon and Severn Inshore Fisheries and Conservation Authority

email address

k.gray@devonandsevernifca.gov.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

organisation name

Devon and Severn Inshore Fisheries and Conservation Authority

email address

k.gray@devonandsevernifca.gov.uk

responsible party role

pointOfContact

Metadata date

2017-01-19

Metadata language