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dc.contributor.authorFolkvord, Arild
dc.contributor.authorVollset, Knut Wiik
dc.contributor.authorCatalan, Ignacio
dc.PublishedJournal of Fish Biology 2015, 87(5):1176-1190eng
dc.description.abstractIt was hypothesized that the survival and growth strategies of herring Clupea harengus, displaying a flexible reproductive activity, are adapted to coping with longer periods of prey deprivation (i.e. more variable prey availability), in contrast to cod Gadus morhua, which are adapted to match growth and survival at high prey concentrations. Experimental larval growth and survival data for the two naturally co-occurring species reared either in separate tanks or in combination are presented to test this hypothesis. Natural zooplankton was supplied either ad libitum or in a periodically restricted manner to mimic natural suboptimal conditions. Periodically restricted feeding significantly reduced initial growth of G. morhua larvae co-reared with C. harengus, while no such initial effect was seen for co-reared C. harengus. Overall survival of G. morhua was higher when reared together with C. harengus (32 v. 24%), while C. harengus had higher survival without the presence of G. morhua (59 v. 44%), indicating that both species were affected by higher densities of G. morhua larvae. Furthermore, the final survival in G. morhua was inversely related to average final size, while in C. harengus an opposite trend was observed. How potential behavioural interactions may drive the present results are discussed and contended that a better insight into field vital rates may be gained from further exploration of co-rearing experiments.en_US
dc.publisherJohn Wiley & Sons Ltd on behalf of The Fisheries Society of the British Islesen_US
dc.rightsAttribution CC BY 4.0eng
dc.titleDifferences in growth and survival between cod Gadus morhua and herring Clupea harengus early stages co-reared at variable prey concentrationsen_US
dc.typePeer reviewed
dc.typeJournal article
dc.rights.holderCopyright 2015 The Authorsen_US
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400en_US

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Attribution CC BY 4.0
Except where otherwise noted, this item's license is described as Attribution CC BY 4.0