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 501798
Title Original Article : Effect of zooplankton on fish larval abundance and distribution: A long-term study on North Sea herring (Clupea harengus)
Author(s) Alvarez-Fernandez, S.; Licandro, P.; Damme, C.J.G. Van; Hufnagl, M.
Source ICES Journal of Marine Science 72 (2015)9. - ISSN 1054-3139 - p. 2569 - 2577.
DOI https://doi.org/10.1093/icesjms/fsv140
Department(s) Aquatic Ecology and Water Quality Management
IMARES Vis
IMARES Onderzoeksformatie
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) Herring - Larval survival - North Sea - Temperature - Zooplankton
Abstract

During the last decade, North Sea autumn spawning herring (Clupea harengus) has gone through consecutive years of lowrecruitment despite high spawning-stock biomass. Although several mechanisms, such as reduced larval growth and high early larvae mortality, have been identified as cooccurring during these years, the causes behind them have not been identified. In this study, we analyse a long-term dataset of larval distribution, obtained during the International Bottom Trawl Survey, in relation to environmental conditions during winter and zooplankton abundances, obtained from the continuous plankton recorder. These analyses assessed the potential influence of these factors on the reduced survival of larval stages. Generalized additive mixed models on 30 years of data showed the abundance of Pseudocalanus sp. during winter to have a strong relationship with larval distribution and abundance, suggesting that predator-prey processes are behind the low recruitment in recent years. According to our models, the direct effect of temperature on larval abundances was less than the effect of zooplankton abundances.

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