CEFAS3cc689cb-7924-44c4-b580-082d05890940
English
series
series
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
Suffolk
NR33 0HT
UK
data.manager@cefas.co.uk
pointOfContact
2022-01-27T10:14:43
EPSG Geodetic Parameter Registry
2022-01-07
revision
WGS 84
North Sea CodWatch 2008/09 - Fisheries Science Partnership survey
FSP North Sea CodWatch
2016-11-14
publication
2022-01-27
revision
2016-11-11
creation
CEFAS18236
https://data.cefas.co.uk
Data from FSP 2007/09 Programme 18 ‘North Sea Codwatch’, which from April 2007
to March 2009 monitored the status of 1- and 2-year-old cod (Gadus morhua) and
also of cod and whiting (Merlangius merlangius) (the latter only from June
2008 on) of all ages in catches in the North Sea made by selected commercial
vessels associated with the Eastern England Fish Producers Organisation Ltd
(EEFPO). The Programme from June 2008 to March 2009 was part-funded by a grant
from Yorkshire Forward.
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
Suffolk
NR33 0HT
UK
data.manager@cefas.co.uk
originator
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
Suffolk
NR33 0HT
UK
data.manager@cefas.co.uk
custodian
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
Suffolk
NR33 0HT
UK
data.manager@cefas.co.uk
distributor
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
data.manager@cefas.co.uk
owner
Department for Environment, Food and Rural Affairs (DEFRA)
defra.helpline@defra.gov.uk
owner
notPlanned
Biota abundance, biomass and diversity
SeaDataNet P03 parameter discovery vocabulary
2011-03-25
revision
Species distribution
GEMET - INSPIRE themes, version 1.0
2008-06-01
publication
Water column
SeaVoX Vertical Co-ordinate Coverages
2010-05-18
revision
Marine Environmental Data and Information Network
MEDIN metadata record availability
2012-01-11
publication
otherRestrictions
noLimitations
otherRestrictions
Public data - no limitations to reuse
English
biota
-6.00
9.00
50.00
61.50
2007-01-01
2008-01-01
Binary
Unknown
https://data.cefas.co.uk/view/18236
Cefas Data Portal
download
The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. Data is available in the following formats: Binary download.
dataset
INSPIRE Data Specification on Species Distribution – Technical Guidelines
2013-12-10
publication
false
See the referenced specification
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
2010-12-08
publication
true
See the referenced specification
Twelve fishers with a track record of catching cod were selected by the EEFPO
to maximise spatial coverage of the North Sea and to include a wide range of
fishing gears and target species.
Trip logsheets, designed and formatted by the EEFPO and Cefas, were
distributed to all fishers in the project. The logsheets include fields for:
• Target species, gear type and dimensions (including mesh size), and quota
allocation.
• Date, time, a single midpoint lat/long identifier for each tow/haul, target
species, hours towed/soak-time.
• For each of the three objectives (1-year-old cod, 2-year-old cod, and cod of
all ages): a relative estimate by the observing fisher of abundance using a
5-point scale (0 = zero, 1 = small numbers, 2 = moderate numbers, 3 = high
numbers, 4 = very high numbers), and an estimate of the quantity (by weight
and number) retained and discarded. Fishers were requested to estimate
relative abundance using their previous historical knowledge of incoming year
classes and of cod fishing in general (the average fishing experience of
participating skippers is 30 years).
Fishers were provided with guidance by quarter on the expected upper and lower
likely lengths of 1- and 2-year-old cod, derived from previous sampling of
retained and discarded catches during recent fishing trips attended by
observers in the central North Sea. No allowance was made for potential
differences in growth rate between different areas of the North Sea, as this
was deemed appropriate in order to reduce the complexity of sampling by
fishers moving in and out of different fishing areas. Also, no allowance is
made for difference in growth rate at age between years. Fishers were provided
with fish measuring boards, and guidance was given in the subsampling of large
or mixed catches. The distribution and collection of logsheets and the
transfer of data onto Excel spreadsheets were carried out by the EEFPO.
Fishers were encouraged also to record additional observations they considered
relevant to the project.
MEDIN
3.1.1