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FACTORS INFLUENCING YEARCLASS STRENGTH OF NORWEGIAN
DISTRIBUTION ABUNDANCE AND MORTALITY OF YOUNG
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0-group stage 0STVEDT 1964 year-classes abundance estimates acoustic surveys adolescent phase adult stock Annls biol ANON April area 07 Atlanto-Scandian autumn Barents Sea Bergen BLAXTER Catch in tons CBPS coast Cons Copenh Coun DEVOLD distribution of 0-group DRAGESUND drift eastern Finnmark echo abundance echo recordings echo sounder eggs exploitation Explor factors fat-herring fishery fish FiskDir Fiskets Gang fjords Fr0ya Halten hatching HavUnders HEMPEL HOGNESTAD Iceland IKMT indicated JAKOBSSON Johan Hjort length distributions Lofoten M0re main spawning migration Mimeo mortality coefficients natural mortality Nord-Norge Nordland North Sea northern Norway northward Norwegian Sea Norwegian winter number of larvae parent stock pelagic trawl period perm plankton polyar Porsangerfjord Rapp recruit spawners Recruitment Mechanisms relatively rich year-classes samples Sklinna small-herring spawning grounds spawning season spawning stock Stad stations subsequent year-class strength Table tagging experiments temperature Torsvag Traena Ullsfjord Varangerfjord variations Weight in g young and adolescent YUDANOV