Identification

Title

2005 - 2005 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Western Edge ghost nets 2005/06 - Fisheries Science Partnership

Alternative title(s)

FSP Western Edge ghost nets

Abstract

One Fisheries Science Partnership survey was carried out in September/October 2005 to examine the amount and mesh size of lost and discarded gillnets in the anglerfish and shark fisheries on and around Rosemary Bank to the west of Scotland. Information from the DEEPNET1 project suggests that lost and discarded gill nets from these fisheries to the west of the British Isles may continue to “ghost fish” for long periods due to a slow rate of bio-fouling.

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/2914/

function: order

Unique resource identifier

code

CEFASe049ffc5-38e9-43d4-8712-be8799007ec7

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

-18

East bounding longitude

-8

North bounding latitude

61

South bounding latitude

58

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

2005-09-01T00:00:00.000Z

End position

2005-10-31T00:00:00.000Z

Dataset reference date

date type

publication

effective date

2017-02-14

Frequency of update

notPlanned

Quality and validity

Lineage

The stern trawler FV Kirkella was chartered to carry out a gillnet retrieval survey using the same gear as on Norwegian retrieval surveys for lost and discarded Greenland halibut gillnets. The area for the survey was chosen based on information on distribution of fishing activity from VMS data. Retrieval tows along transects were stratified by depth, the two strata corresponding to the depth range of the anglerfish (400 - 800m) and the deep-water shark (800 - 1200 m) fisheries. Mesh size was used to further attribute retrieved gear to fishery. The size and composition of any catches taken by retrieved nets were recorded. Heavy retrieval gear comprising a steel bar with three grappling anchors was used throughout the trip. This gear was attached to a steel warp and towed along the seabed at a speed of 1-2 knots (average 1.5 knots), a technique called ‘creeping’. The gear was hauled when the tension meters on the winch showed increased loading, indicating that the grappling anchors may have captured fishing gear. The gear and general method of deployment was exactly the same used on the annual Norwegian retrieval surveys for lost and discarded Greenland halibut gillnets.

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

2017-02-14T10:26:46

Metadata language