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 423891
Title The rise and fall for the NE Atlantic blue whiting (Micromesistus Poutassou)
Author(s) Payne, M.R.; Egan, A.R.; Fassler, S.M.M.; Hatun, H.; Holst, J.C.; Jacobsen, J.A.
Source Marine Biology Research 8 (2012)5-6. - ISSN 1745-1000 - p. 475 - 487.
DOI https://doi.org/10.1080/17451000.2011.639778
Department(s) IMARES Visserij
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) eastern north-atlantic - haddock melanogrammus-aeglefinus - subpolar gyre - larval fish - scomber-scombrus - egg size - recruitment - growth - stock - circulation
Abstract The Northeast Atlantic blue whiting (Micromesistius poutassou) stock has undergone striking changes in abundance in the last 15 years. The stock increased dramatically in the late 1990s due to a succession of eight unusually strong year classes and dropped again equally dramatically after 2005 when the recruitment collapsed to former levels. The North Atlantic subpolar gyre has previously been shown to have a strong influence on the behaviour of this stock: synchronous changes in the gyre and recruitment suggest a causal linkage and the possibility of forecasting recruitment. A range of mechanisms are reviewed that may explain these observed changes, with two major candidate hypotheses being identified. One hypothesis suggests that the large mackerel (Scomber scombrus) stock in this region may feed on the pre-recruits of blue whiting, with the spatial overlap between blue whiting and mackerel being regulated by the subpolar gyre. Alternatively, variations in the physical environment may have given rise to changes in the amount, type and availability of food for larvae and juveniles, impacting their growth and survival and therefore recruitment. It was not possible to draw firm conclusions about the validity of either of these hypotheses: nevertheless, forecasting recruitment to this stock may be possible in the future if the underlying mechanisms can be resolved.
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