Document of dataset 4418

Dataset record

Type
Dataset
title in English
North Sea cod and plaice egg surveys (2004, 2009)
Acronym
CP-EGGS
Description in English

The North Sea cod and plaice egg surveys have been conducted in 2004 and 2009 and will be continued in 2013 alongside the MIK herring larvae sampling during the IBTS survey.

The surveys were originally directed at cod and plaice, but also supply data of other winter spawning North Sea fish. The surveys are conducted with Gulf III or VII plankton torpedo’s, Bongo nets or CUFES. With the Gulf’s and Bongo’s double oblique hauls are conducted through the water column till 5m above the sea floor or a maximum of 200m depth. The CUFES sampling is a continues sampling at 5m depth. The mesh size of all sampling equipment is 280 μm. During the sampling temperature and salinity are measured. Flowmeters are used to measure the amount of water filtered while sampling.

The database contains the haul information data, position, time , duration, water volume, depth, temperature and salinity. Eggs and larvae in the samples werecounted. All eggs >1mm were measured and identified to species were possible. Eggs <1 mm are counted and in 2004 measured and identified as well. There is large overlap in size some gadoids, including cod, and other species, thus identification by eye is not possible. For these, genetic analysis was used to identify the species. All eggs that are measured and identified were also staged following the stage descriptions in Appendix A. Larvae in the samples were identified to species, measured and development stage assigned.

Abstract in English
The dataset includes information about spatial distribution and abundance of fish eggs and larvae in the North Sea based on the data from the North Sea Cod and Plaice egg surveys. The survey aims at studying fish egg and larval distributions in the winter in the North Sea, target species are cod and plaice.
The program was steered by the WGEGGS until 2012 and is currently steered by WGEGGS2.
License
https://spdx.org/licenses/CC-BY-4.0.html
bibliographicCitation
ICES North Sea cod and plaice egg surveys (2004, 2009). Available online at http://eggsandlarvae.ices.dk ICES, Copenhagen. Consulted on yyyy-mm-dd.

Temporal coverage

Temporal
Start date
2003-12-01
End date
2004-12-01
Start date
2008-12-01
End date
2009-12-01

Geographical coverage

Spatial
ANE, English Channel
ANE, North Sea

Thesaurus terms

Keyword
Ichthyoplankton

Themes

theme
Biology > Fish

Taxonomic terms

Taxon keywords
Pisces

Ownerships

contactPoint
Neil Holdsworth
contactPoint
International Council for the Exploration of the Sea
contributor
International Council for the Exploration of the Sea
creator
International Council for the Exploration of the Sea

Publication references

related reference
Based on this dataset /id/publication/248963
Based on this dataset /id/publication/200359
Based on this dataset /id/publication/200358
Based on this dataset /id/publication/248964
Based on this dataset /id/publication/110817
Describing this dataset /id/publication/247256

Dataset references

is part of
Eggs and larvae
record
European Ocean Biodiversity Information System

Special collections

part of special collection
available through EurOBIS
EMODNET

Document metadata

date created
2013-10-30
date modified
2022-06-16