Identification

Title

2010 - 2010 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Observations of Cod at Greenland 2010/11 - Fisheries Science Partnership

Alternative title(s)

FSP Observations of Cod at Greenland

Abstract

During the May, June and July 2010, the fishing vessel *Marbella * carried out commercial fishing for Greenland cod ( *Gadus morhua* ) off the east coast of Greenland. Some hauls were targeted at Greenland halibut *(* *Reinhardtius hippoglossoides* ). The purpose of this report is to fulfil the Greenlandic Authorities’ requirement to present observer-collected information on cod (for details see below), so the results for Greenland halibut (and other species taken) are not presented. In all, 116 tows targeting cod were carried out in two areas off the east coast of Greenland, of which 46 where sampled for length and 40 of the 46 for otoliths and other biological information. Discarded cod amounted to just 0.08% of the total catch of the species (some of these fish were damaged on hauling and processing).

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/2946/

function: order

Unique resource identifier

code

CEFAS2567e3d1-6843-464e-86ff-d1141e52e371

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

-50

East bounding longitude

-40

North bounding latitude

70

South bounding latitude

60

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

2010-05-27T00:00:00.000Z

End position

2010-07-09T00:00:00.000Z

Dataset reference date

date type

publication

effective date

2017-01-24

Frequency of update

notPlanned

Quality and validity

Lineage

FV Marbella (H771) is a stern freezer-trawler built in 1989. Her registered length is 62 m and she is powered by a 2700 kW main engine. Marbella fished with an otter trawl. Two nets were used: (i) the Stelstad net, with a 32m footrope and 28-inch hoppers plus a twin trouser codend constructed of 6-mm double-braided twine, and (ii) the Bacalao net, with a 42 m footrope and 29-inch hoppers plus a trouser codend constructed of 8-mm single-braided twine. Tow duration was on average 45 and 60 min for the northerly and southerly grounds, respectively, but was more variable for the southern area. Towing speeds were kept at around 2.8–3.6 knots, whenever possible. Fishing activity and biological sampling All shooting and hauling positions and trawl durations were captured on a database and checked for quality of data input. Standard methods were used by Cefas staff for sorting and recording catches on commercial fishing vessels. Catches of cod were quantified and classified as discarded or retained according to advice from the fishing crew. When catches were sampled rather than fully sorted, an appropriate raising factor was determined to allow the total catch to be estimated. For each component (retained and discarded), length measurements of cod were obtained and the sex and maturity of fish sampled for otoliths were recorded. These data were captured on the database and checked for quality of data input. <span style="font-family: Calibri;">...</span>

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

2017-01-24T15:49:14

Metadata language