Identification

Title

2009 - 2009 Centre for Environment, Fisheries & Aquaculture Science (Cefas) North Wales Spurdog Longline Fishery 2008/09 - Fisheries Science Partnership

Alternative title(s)

FSP Spurdog in the Irish Sea

Abstract

To increase knowledge of the spatial and temporal dynamics of spurdog in waters off North Wales, to provide contemporary data on the reproductive parameters used in demographic models, and to increase understanding of the discard survival of fish caught under commercial conditions.

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/2943/

function: order

Unique resource identifier

code

CEFAS4b5f152a-0810-429f-9783-82071cdd3be1

codeSpace

http://www.cefas.co.uk/

Dataset language

eng

Spatial reference system

authority code

OGP

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

originating controlled vocabulary

title

reference date

date type

revision

effective date

2011-03-25

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

-8

East bounding longitude

-2.5

North bounding latitude

55.25

South bounding latitude

51.75

Extent

Extent group

authority code

title

reference date

date type

revision

effective date

2010-05-18

code identifying the extent

Temporal reference

Temporal extent

Begin position

2009-03-31T00:00:00.000Z

End position

2009-09-12T00:00:00.000Z

Dataset reference date

date type

publication

effective date

2017-01-20

Frequency of update

notPlanned

Quality and validity

Lineage

Studies focused on spurdog taken by longliners operating in the Irish Sea. This fleet of small, inshore vessels is based primarily in Holyhead (North Wales), and the study <span style="font-family: ArialMT;">...</span> potter/liner *<span style="font-family: Arial;">...</span>* Three surveys took place. Some of the spurdog were tagged with Petersen discs and released after biological information was recorded, including sex, length and a qualitative index of health state (1, lively; 2, sluggish). This will allow the longer term survival of discarded fish to be examined. The remaining parts of the catch were measured, and a subsample of females was dissected to collect information on the reproductive biology. Given that longlining for spurdog can result in large catches, it was not always possible to quantify catches completely, but large catches were subsampled and raising factors estimated.

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Constraint set

Limitations on public access

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Responsible organisations

Responsible party

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

originator

Responsible party

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

pointOfContact

Metadata date

2017-01-20T14:55:20

Metadata language