Investigation of fish eggs and larvae in terms of species composition and size
Knowledge on the strength of the recruiting year class of a fish stock is of tremendous importance for sustainable mangement. Successful reproduction and foraging of fry are of essential importance for the further development of the stock.
Based on the triennial Mackerel and Horse Mackerel Egg Survey in West British waters and the annual Herring Larvae Survey in the North Sea, the institute investigates the distribution, species and size composition of eggs and larvae of commercially important pelagic fish species.
Catches of ichthyoplankton are conducted during the spawning season of the relevant species. It is of importance to monitor the whole spawning season and the whole spawning area to get full insights of the spawning dynamics. This is only possible in an international framework, where sampling areas and time windows can be shared and co-ordinated.
We use the survey results to estimate changes in stock size. We share and process these data in international working groups to assess the stock dynamics.
1.2009 - 12.2020
Project status: ongoing