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Project
How reproduction impacts stock size
Investigation of fish eggs and larvae
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.
Background and Objective
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.
Approach
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.
Preliminary Results
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.
Links and Downloads
Thünen-Contact
Involved Thünen-Partners
Funding Body
-
EU - European Maritime and Fisheries Fund (EMFF)
(international, öffentlich) -
European Union (EU)
(international, öffentlich)
Duration
1.2009 - 12.2027
More Information
Project status:
ongoing
Slideshow
Publications
- 0
Costas G, Kloppmann MHF, Alvarez P, Angelico MM, Burns F, Dos Santos Schmidt T, Garabana D, Korta M, Nunes C, O'Hea B, Riveiro I, Sampedro P, Solla A, Thorsen A, Ulleweit J, Damme CJG van (2021) ICES Working Group on Mackerel and Horse Mackerel Egg Surveys (WGMEGS: outputs from 2020 meeting). Copenhagen: ICES, 88 p, ICES Sci Rep 3(11), DOI:10.17895/ices.pub.7899
- 1
Costas G, O'Hea B, Alvarez P, Angelico MM, Burns F, Dos Santos Schmidt T, Huwer B, Garabana D, Kloppmann MHF, Korta M, Nash RDM, Nunes C, Nuñez-Riboni I, Riveiro I, Sampedro P, Solla A, Thorsen A, Ulleweit J, Damme CJG van (2021) Working Group on Mackerel and Horse Mackerel Egg Surveys (WGMEGS). Copenhagen: ICES, 40 p, ICES Sci Rep 3(82), DOI:10.17895/ices.pub.8249
- 2
Burns F, Damme CJG van, Ulleweit J, Fonn M, Thorsen A, Franco C (2013) 2013 International mackerel and horse mackerel egg survey : preliminary results ; Working Document / Survey Report, ICES WGWIDE 2013. Copenhagen: ICES, 36 p
- 3
Tiedemann M, Kloppmann MHF, Ulleweit J, Gröger JP, Hagen W (2013) A spatial analysis of larval fish assemblages in the Celtic Sea off Great Britain (47° to 51° N): implications of bathymetry and ocean warming. Mar Biol Res 10(5):482-493, doi:10.1080/17451000.2013.819983
- 4
Ulleweit J, Burns F, Damme CJG van, Fonn M, Kloppmann MHF, Milligan SA, Thorsen A (2010) Survey report: 2010 International mackerel and horse mackerel egg survey : preliminary results. 36 p Working Doc ICES WGWIDE 2010/1
- 5
Kloppmann MHF, Ulleweit J, Damme CJG van (2008) Distribution of Snake Pipefish during the 2007 MEGS : working document presented at the Working Group for the Mackerel Egg Survey.
- 6
Kloppmann MHF, Ulleweit J (2007) Off-shelf distribution of pelagic snake pipefish, Entelurus aequoreus (Linnaeus, 1758), west of the British Isles. Mar Biol 151(1):271-275, DOI:10.1007/s00227-006-0480-4
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