Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 490971
Title Feasibility study combining North Sea and Atlantic mackerel egg surveys
Author(s) Damme, C.J.G. van; Thorsen, A.; Brunel, T.P.A.; Nash, R.D.M.
Source IJmuiden : IMARES (Report / IMARES Wageningen UR C124/15) - 23
Department(s) Vis
Visserij
Publication type Research report
Publication year 2015
Keyword(s) scomber scombrus - makrelen - kuitschieten - visseneieren - visserij - noordzee - scomber scombrus - mackerels - spawning - fish eggs - fisheries - north sea
Categories Fisheries
Abstract Mackerel Scomber scombrus is a widely distributed species with a high economic and ecological importance. The North East Atlantic mackerel comprises three different spawning components. The Spawning Stock Biomass (SSB) index from the mackerel egg surveys is used as a fisheries independent tuning index for the mackerel assessment. The North Sea mackerel triennial egg survey is carried out in the year after the egg survey of the Western and Southern spawning components. Due to this time lag currently the North Sea egg survey SSB index is not used directly in the mackerel assessment. However, the egg survey is the only available information on the mackerel spawning component in the North Sea. Can the North Sea mackerel egg survey index be incorporated in the mackerel assessment and what is the impact of the incorporation of this index? Could the North Sea and Atlantic egg surveys be carried out in the same sampling year?
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