Identification

Title

2012 - 2014 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Under Ten Metre Gillnet Fleet Haddock Fishery 2014/15 - Fisheries Science Partnership

Alternative title(s)

FSP Under 10 Metre Gillnet Fleet Haddock Fishery

Abstract

In a collaborative Fisheries Science Partnership (FSP) Project, Chadfish (Cadgwith, Helford & District Fishermen’s Society) and Cefas (Centre for Environment, Fisheries and Aquaculture Science) sought to explore whether fishing with large mesh gill nets is a selective method which does not catch small fish; results in no discarding and no high grading; has low fuel use; and maximises the economic returns of the haddock fishery. Focusing on under 10 m gill nets in the south west of England, the project sourced and analysed extensive fisheries data sets, conducted interviews with skippers and organised a workshop of expert stakeholders including fishermen, scientists, policy makers and fisheries managers. These activities were used to evaluate the impacts of large mesh gill nets according to selectivity for target species, selectivity for size, impacts on unwanted by-catch species including mammals and birds, impacts on habitats and economic returns from haddock.

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/18418/

function: order

Unique resource identifier

code

CEFASf6a47197-c192-4804-898c-b952e957c41c

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

-13

East bounding longitude

-1

North bounding latitude

52.5

South bounding latitude

47.5

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

2012-01-01T23:00:00.000Z

End position

2014-12-31T00:00:00.000Z

Dataset reference date

date type

publication

effective date

2017-02-13

Frequency of update

unknown

Quality and validity

Lineage

Under 10m netting skippers completing the questionnaire asserted that the large mesh nets they use for gadoids had a high proportion of large haddock and very low discard rates of all fish. Discards are mainly associated with fish that are damaged by seals and lice, and lack of quota. Skippers completing the questionnaire also stated that by-catches of marine mammals and birds using large mesh gill nets are rare. These claims were consistent with third party photographic and video material, which showed little evidence of habitat damage (i.e. material hauled up in the gear). Fuel use per trip was also found to be low. Participants at the stakeholder workshop agreed that fishing with large mesh gill nets is a ‘clean’ fishing method and should be treated as a low risk fishing technique as far as enforcement of the landing obligation is concerned (Jan 2016 onwards). Over 10m trawler operators argued that they were developing more selective methods to eliminate haddock discards since haddock would be a choke species when the landing obligation commences. Any less haddock quota would therefore have a big impact upon their fishing operations. Policy makers and fisheries managers recognise that large mesh nets are highly selective for haddock. However, quota will always be perceived to not be enough and if more quota is given to one part of the industry then it would have to be taken from another part of the industry.

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

2017-02-13T15:48:56

Metadata language