Browsing Havforskningsinstituttet by Title
Now showing items 3655-3674 of 11576
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How does stochasticity affect evolutionary regime shifts in age and size at maturation?
(ICES CM documents, Working paper, 2006)Fish in many exploited stocks grow faster and mature earlier at either larger or smaller sizes in comparison to pre-exploitation periods. These changes can be driven by both genetic and phenotypic responses. We have shown ... -
How Integrated Ocean governance in the Barents Sea was created by a drive for increased oil production
(Journal article; Peer reviewed, 2015-12-19)The Norwegian integrated management plan for the Lofoten–Barents Sea areas (BSMP) was initiated in 2002 following an international push for implementing ecosystem-based management, as well as a national drive to make new ... -
How many trawl hauls, and how many fish from each haul are needed to obtain a given precision in the age structure estimate for Norwegian spring spawning herring? A bootstrap approach
(ICES CM documents, Working paper, 2006)The Norwegian spring spawning herring is assessed each year from acoustic surveys. The age structure in the stock is estimated from trawl samples. Typically, about 10 trawl samples are taken per survey, and 100 fish from ... -
How to correct fish density estimates for extinction
(ICES CM Documents;1990/B:24, Working paper, 1990)There have been many experimental studies on acoustic shadowing, but once the effect is quantified, how is the compensation to be effected? This work shows how, through postprocessing of stored time series, containing ... -
How to obtain clear images from in-trawl cameras near the seabed? A case study from the Barents Sea demersal fishing grounds
(Peer reviewed; Journal article, 2023)Underwater camera systems are commonly used for monitoring fish and fishing gear behaviours. More recently, camera systems have been applied to scientific trawl surveys for improved spatial resolution and less invasive ... -
How variable is the fecundity within and between cod stocks?
(ICES CM documents, Working paper, 2005)Stock reproductive potential is determined by the number of fish at age, sex ratio, proportion of mature female at age and fecundity. Fecundity data, which are fundamental in estimating egg production are not collected ... -
HR MAS 1H NMR spectroscopy analysis of marine microalgal whole cells
(Journal article; Peer reviewed, 2003-07-17)To study the use of nuclear magnetic resonance (NMR) spectroscopy as a method of classification, we performed high-resolution magic angle spinning proton (HR MAS 1H) NMR spectroscopy analysis of whole-cell samples of ... -
Hull mounted, protruding transducer for improving echo integration in bad weather
(ICES CM documents, Working paper, 1990)A 38 kHz split beam survey transducer has been mounted on the tip of a 4 m vertical protrusile stabilizing keel of the United States NOAA fishery research vessel R/V Miller Freeman. Air blocking problems, generally ... -
Hull mounted, protruding transducer for improving echo integration in bad weather
(ICES CM Documents;1990/B:31, Working paper, 1990)A 38 kHz split beam survey transducer has been mounted on the tip of a 4 m vertical protrusile stabilizing keel of the United States NOAA fishery research vessel R/V Miller Freeman. Air blocking problems, generally ... -
Human dietary exposure to dioxins and dioxin-like PCBs through the consumption of Atlantic herring from fishing areas in the Norwegian Sea and Baltic Sea
(Peer reviewed; Journal article, 2022)The concentrations of dioxins [polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs)], and dioxin-like polychlorinated biphenyls (DL-PCBs) in Atlantic herring depend on the fishing area. These ... -
Human pathogens in marine mammal meat. Opinion of the Panel on Biological Hazards
(VKM Report, Research report, 2011) -
Human-induced evolution caught in action: SNP-array reveals rapid amphi-atlantic spread of pesticide resistance in the salmon ecotoparasite Lepeophtheirus salmonis
(Journal article; Peer reviewed, 2014-10-26)Background The salmon louse, Lepeophtheirus salmonis, is an ectoparasite of salmonids that causes huge economic losses in salmon farming, and has also been causatively linked with declines of wild salmonid populations. ... -
Hummar
(Havforskningstema, Working paper, 1996) -
Hummer - biologi, fiske og forvaltning
(Fisken og havet, Research report, 1995)The European lobster (Hornarus gammarus) can become very old and a maximum age of 50 years have been suggested. Compared to crabs and spiny lobsters, the fecundity of lobsters is relatively low per hatching. The eggs ... -
Hummer og Hummerkultur
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1936) -
Hummerbestanden i Norge med særlig vekt på Skagerrak
(Flødevigen meldinger;Nr. 4 - 1991, Working paper, 1991) -
Hummerens biologi
(Havforskningsnytt, Working paper, 1994) -
Hummerfisket 2017 og 2018: Innsats og fangst
(Rapport fra havforskningen;2019 - 39, Research report, 2019)I 2017 ble det innført obligatorisk påmelding til hummerfisket for både fritidsfiskere og yrkesfiskere. Dette har lagt grunnlaget for muligheten til å beregne total innsats og fangst av hummer i Norge. Etter hummersesongen ... -
Hummerfredning ved Trollsøy i Austevoll - Resultater fra 2018 til 2022
(Rapport fra havforskningen;2023 - 33, Research report, 2023)Fredningsområde for hummer ble etablert ved Trollsøy i Austevoll kommune i september 2018. Rapporten oppsummerer resultatene fra et overvåkningsfiske som er gjennomført årlig fra oktober 2018 i fredningsområdet og i et ... -
Hummerreservater på Skagerrakkysten
(Havforskningsnytt, Working paper, 2007)Nå er områdevern innført for å gjenoppbygge den norske hummerbestanden, som det har vist seg vanskelig å beskytte ved hjelp av tradisjonelle reguleringstiltak.