Data Portals

Fecundity and atresia

Unified portal to access fish fecundity and atresia data from surveys carried out in ICES areas

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The combination of egg production estimates and fecundity data from fish sampled at appropriate time periods is important to the estimation of spawning stock biomass used in fish stock assessments. Fish fecundity data have been collected for a long time in the ICES area, during international ichthyoplankton surveys. The fecundity and atresia database, aims to be a platform where the wider scientific community can share, store and retrieve data, in a standardized format.​

​Some of the surveys that make up the database are:

  • ​The Mackerel and horse mackerel egg surveys (MEGS, 1992-present)
The survey existed since 1968. It is carried out every 3 years in the north eastern Atlantic and in the North Sea. The survey creates a basis for the stock assessment of Atlantic and North Sea mackerel and management plan for Atlantic horse mackerel. The database contains information about the surveys conducted since 1992. The group responsible for the survey is WGMEGS.

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Fecundity and atresia

International Council for the Exploration of the Sea (ICES) · Conseil International pour l'Exploration de la Mer (CIEM)
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