Browsing Articles by Subject "dødelighet"
Now showing items 1-6 of 6
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Abundance estimation of Northeast Atlantic mackerel based on tag recapture data - A useful tool for stock assessment?
(Journal article; Peer reviewed, 2010-10)In the present study we utilize tag recapture data to estimate year class abundance and spawning stock biomass of mackerel (Scomber scombrus L.) in the Northeast Atlantic for the period 1986–2008. On average 20,000 jigged ... -
Deriving condition indices from standard fisheries databases and evaluating their sensitivity to variation in stored energy reserves
(Journal article; Peer reviewed, 2004)To evaluate interstock differences in condition, it would be advantageous to develop stock-level condition indices from standardized databases on weight and length. This study describes a method for estimating stock-level ... -
Individual fish tank arrays in studies of Lepeophtheirus salmonis and lice loss variability
(Journal article; Peer reviewed, 2011-11-03)In studies of the salmon louse Lepeophtheirus salmonis (Krøyer, 1837), experimental design is complicated by a highly variable and unpredictable lice loss among common experimental tanks and a substantial rate of host ... -
Mortality of mackerel (Scomber scombrus L.) after pursing and slipping from a purse seine
(Journal article; Peer reviewed, 2010-10)A new method was used to study the effect of crowding and subsequent slipping from a purse seine on the mortality of Atlantic mackerel (Scomber scombrus L.). Mackerel were allowed to swim from a purse seine through a ... -
Recruitment decline in North Sea herring is accompanied by reduced larval growth rates
(Journal article; Peer reviewed, 2013-08-28)The stock of North Sea autumn spawning herring Clupea harengus (L.) has shown an unprecedented 10 yr sequence of sharply reduced recruitment, in spite of a high spawning biomass. Recent work has identified this below-expected ... -
Vacuolating encephalopathy and retinopathy associated with a nodavirus-like agent: a probable cause of mass mortality of cultured larval and juvenile Atlantic halibut Hippoglossus hippoglossus
(Journal article; Peer reviewed, 1997-05-22)Reared larval and juvenile Atlantic halibut Hippoglossus hippoglossus collected during incidences of mass mortality in 2 hatcheries were studied by light and electron microscopy. A vacuolating encephalopathy and retinopathy ...