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Susceptibility of Atlantic cod Gadus morhua, halibut Hippoglossus hippoglossus and wrasse (Labridae) to Aeromonas salmonicida subsp. salmonicida and the possibility of transmission of furunculosis from farmed salmon Salmo salar to marine fish
(Journal article; Peer reviewed, 1995-09-14)The possibility of transmission of Aeromonas salmonicida subsp. salmonicida from Atlantic salmon Salmo salar to cod Gadus morhua, halibut Hippoglossus hippoglossus, and wrasse (Labridae) was studied in both laboratory ... -
Larval and small juvenile cod Gadus morhua concentrated in the highly productive areas of a shelf break front
(Journal article; Peer reviewed, 1995-09-14)The early life of cod was studied during a survey programme covering the northeastern North Sea, the Skagerrak and the Kattegat in May 1992. Our aim was to asses the interrelated effects of physical and biological factors ... -
The 'critical period' concept - a century of recruitment research
(Others, 1995-11-23) -
Tallrikhetsmåling - innsats og pålitelighet
(Fisken og havet, Research report, 1996)Hvordan avhenger presisjonen i tallrikhetsanslagene fra tokt av selve toktinnsatsen; i.e. av utseilt distanse og antall trålstasjoner eller fartøydøgn? Spørsmålet er belyst med eksempler fra litteraturen og fra vintertoktene ... -
Occurrence and diet of killer whales in northern Norway: seasonal patterns relative to the distribution and abundance of Norwegian spring-spawning herring
(Journal article; Peer reviewed, 1996)Our objectives were to investigate the seasonal occurrence of photoidentified killer whale pods in relation to the distribution of Norwegian spring-spawning herring and whether or not pod-specific differences in the ... -
Effects of seismic shooting on local abundance and catch rates of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus)
(Journal article; Peer reviewed, 1996)To determine whether seismic exploration affected abundance or catch rates of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus), acoustic mapping and fishing trials with trawls and longlines were conducted in the ... -
Effective use of carotenoids for salmon flesh pigmentation
(Eastern nutrition conference, Conference object, 1996)This presentation discuss pigmentation of Atlantic salmon in relation to factors influencing the pigment deposition and colour appearance of salmonid flesh, diet composition and dietary carotenoid level. The aim was to ... -
Genetic impact on two wild brown trout (Salmo trutta) populations after release of non-indigenous hatchery spawners
(Journal article; Peer reviewed, 1996)A genetically marked hatchery strain of brown trout (Salmo trutta) was employed to study the genetic impact from non-indigenous hatchery fish on wild stocks. The hatchery spawners were released in autumn 1989 into the ... -
Coincidence echo statistics
(Journal article; Peer reviewed, 1996)Two scatterers at similar range give an echo which may appear to be due to a single scatterer. Methods for determining target strength that depend on resolving single scatterers may fail in this instance. Statistics ... -
Ei sild, og ei til. V. Færøyane, halvvegs til Island
(Journal article, 1996-05) -
Vertical distribution of fish and krill beneath water of varying optical properties
(Journal article; Peer reviewed, 1996-06-06)The distribution of acoustical scattering layers of fish and krill changed markedly in concert with fluctuating fluorescence (chlorophyll a) in upper waters, possibly due to a varying 'shadow effect'. Beneath clear waters ... -
Transmission of infectious salmon anaemia (ISA) through natural secretions and excretions from infected smolts of Atlantic salmon Salmo salar during their presymptomatic phase
(Journal article; Peer reviewed, 1996-07-18)Short-term (48 h) exposure of healthy Atlantic salmon Salmo salar L. smelts to infectious salmon anemia (ISA)-inoculated cohort smelts showed that the disease was transmitted with near 100% mortality from Day 7 post-inoculation ... -
Effects of turbulence on the predation cycle of fish larvae: comments on some of the issues
(Journal article; Peer reviewed, 1996-08-29) -
Turbulence-induced contact rates in plankton: the issue of scales
(Journal article; Peer reviewed, 1996-08-29) -
Utredning om benthos-samfunnene på kyststrekningen Fulehuk - Stad
(NIVA-rapport;OR-3551, Research report, 1996-10-14)Målsetningen har vært å sammefatte relevant kunnskap til en beskrivelse av de økologiske samfunn på hard- og bløtbunn langs kyststrekningen Fulehuk (Oslofjorden) - Stad (Vestlandet), med hovedvekt på forhold som kan gi ... -
Bath treatment, an alternative method for the administration of the quinolones flumequine and oxolinic acid to halibut Hippoglossus hippoglossus, and in vitro antibacterial activity of the drugs against some Vibrio sp.
(Journal article; Peer reviewed, 1996-10-17)Administration of flumequine and oxolinic acid to halibut Hippoglossus hippoglossus by bath resulted in significant tissue levels of both the antibacterials. Bath treatment using 150 mg l(-1) of flumequine and 200 mg l(-1) ... -
Abundance, maturity and growth of the krill species Thysanoessa inermis and T. longicaudata the Barents Sea
(Journal article; Peer reviewed, 1996-12-05)Thysanoessa inermis and T. longicaudata were the dominant krill species observed in the western and central Barents Sea between 1984 and 1992. Both species are typically boreal and subarctic, and were found in very low ... -
Norsk-arktisk torsk: Forskartal, feil og fangstkvote
(Journal article, 1997) -
Maturation, spawning and egg drift of Arcto-Norwegian haddock (Melanogrammus aeglefinus)
(Conference object, 1997) -
Analytical and statistical review of procedures for collection and analysis of commercial fishery data used for management and assessment of groundfish stocks in the U.S. exclusive economic zone off Alaska
(Research report, 1997)Effective management of multi-species fisheries requires reliable estimates of the amount and composition of catch and bycatch. In this report, we present the results of analyses of observer program data ...