Identification

Title

2011-Present Eastern Inshore Fisheries and Conservation Authority (Eastern IFCA) Horseshoe Point cockle surveys

Abstract

Since January 2011, Eastern IFCA have carrried out foot surveys at Horseshoe Point, Lincolnshire for the purpose of a cockle (Cerastoderma edule) stock assessment and monitoring, and to assess the possibility of opening the fishery if deemed viable. The surveys have been carried out bi-annually where possible, otherwise surveys have been conducted annually.

Resource type

dataset

Resource locator

Unique resource identifier

code

EIFCAHorseshoePointCockles

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

Geographic location

West bounding longitude

0.1339

East bounding longitude

0.1396

North bounding latitude

53.4874

South bounding latitude

53.4858

Extent

Extent group

authority code

title

reference date

date type

creation

effective date

2009-06-18

code identifying the extent

Southern North Sea

Extent group

authority code

title

reference date

date type

creation

effective date

1954-01-01

code identifying the extent

North Sea

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

IVc

Temporal reference

Temporal extent

Begin position

2015-04-07

End position

2015-04-07

Dataset reference date

date type

publication

effective date

2015-04-07

date type

creation

effective date

2015-04-07

date type

revision

effective date

2015-04-07

Frequency of update

annually

Quality and validity

Lineage

Surveys are carried out along predetermined grid of sample stations at each of the three beds at Horseshoe Point (Horseshoe Point, Grainthorpe West, and Grainthorpe East). The Horseshoe Point bed consists of 36 sampling stations, while Grainthorpe West and East beds each consist of 15 stations. The surveys are carried out at low water spring tide. Handheld GPS units are used to locate sampling stations, and at each station, a 0.1m squared quadrat is thrown (backwards, to ensure randomness) and dug out. The contents are then sieved over a 0.5mm sieve such that all cockles can be retained for later processing. Retained cockles are divided into year classes, measured to the nearest mm and weighed to the nearest 0.1g, and separated into groups of less than 14mm, 14-15mm, and greater than 16mm widths. MapInfo software is then used to create density charts of the size groups.

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

There are no access restrictions.

Responsible organisations

Responsible party

contact position

Senior Research Officer

organisation name

Eastern Inshore Fisheries and Conservation Authority

email address

ronjessop@eastern-ifca.gov.uk

responsible party role

originator

Responsible party

contact position

MEO Data Lead

organisation name

Eastern Inshore Fisheries and Conservation Authority

email address

mail@eastern-ifca.gov.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

MEO Data Lead

organisation name

Eastern Inshore Fisheries and Conservation Authority

email address

mail@eastern-ifca.gov.uk

responsible party role

pointOfContact

Metadata date

2016-11-15

Metadata language