Browsing Brage IMR by Title
Now showing items 6377-6396 of 11544
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Qualitative and quantitative behaviour studies in starving and feeding turbot (Scopthalmus maximus L.) larvae
(ICES CM Documents;1985/F:38, Working paper, 1985)A computer aided video system was used to register three dimensional movement and behaviour patterns in starving and feeding turbot larvae. The feeding larvae were kept and were monitored beyond metamorphosis in the ... -
Qualitative contrast comparisons of differently coloured gillnets.
(ICES CM Documents;1979/B:20, Working paper, 1979)A regularly returning problem for Norwegian gill net manufacturers has been that fishermen often change their fancy for gill net colours, and also that fishermen from different districts have separate colour preferences. ... -
Quality assurance framework – the concept of quality assurance applied to fisheries data and its operationalisation under the ICES scope.
(ICES CM documents;2009/N:06, Working paper, 2009) -
Quality control and preparation of acoustic survey data for treatment by spatial analysis techniques. Experiences from using integrated visualization software tools.
(ICES CM documents, Working paper, 1998) -
Quality in science publishing : Introduction
(Others, 2004-04-14) -
Quality issues related to the presence of the fish parasitic nematode Hysterothylacium aduncum in export shipments of fresh Northeast Arctic cod (Gadus morhua)
(Peer reviewed; Journal article, 2021) -
Quality of fish sludge as fertiliser to spring cereals: Nitrogen effects and environmental pollutants
(Peer reviewed; Journal article, 2023)The aim of this study was to contribute to development of organic fertiliser products based on fish sludge (i.e. feed residues and faeces) from farmed smolt. Four dried fish sludge products, one liquid digestate after ... -
Quantification of bell-shaped size selectivity in shrimp trawl fisheries using square mesh panels and a sorting cone after a Nordmøre grid
(Peer reviewed; Journal article, 2019)Shrimp trawlers in the Barents Sea use a Nordmøre sorting grid ahead of a small-mesh codend to avoid bycatch while catching shrimps efficiently. However, small fish can still pass through the grid to enter the codend, which ... -
Quantification of defensive proteins in skin mucus of atlantic salmon using minimally invasive sampling and high-sensitivity elisa
(Peer reviewed; Journal article, 2020)Protocols used to collect fish skin mucus may inadvertently compromise the sampled fish or the resulting sample. Here, we used three methods (wiping, scraping, and absorption) to collect skin mucus from Atlantic salmon and ... -
Quantification of eDNA to map the distribution of cold-water coral reefs
(Peer reviewed; Journal article, 2020)An effective management of vulnerable marine ecosystems is dependent on thorough knowledge of their location. Multibeam bathymetric mapping and targeted remotely operated vehicle (ROV) surveys are currently used to map ... -
Quantification of gear inflicted damages on trawl-caught haddock in the Northeast Atlantic fishery
(Peer reviewed; Journal article, 2020)External damages are indicators of the overall quality of fish and fish welfare. Haddock is an important commercial species widespread in the North Atlantic, but few studies related to quality have been carried out on this ... -
Quantification of trophic interactions in the Norwegian Sea pelagic food-web over multiple decades
(Peer reviewed; Journal article, 2022)While ecosystem-based fisheries management calls for explicit accounting for interactions between exploited populations and their environment, moving from single species to ecosystem-level assessment is a significant ... -
Quantification of wide-area norwegian spring-spawning herring population density with ocean acoustic waveguide remote sensing (OAWRS)
(Peer reviewed; Journal article, 2021)Norwegian spring-spawning herring are a critical economic resource for multiple nations in the North Atlantic and a keystone species of the Nordic Seas ecosystem. Given the wide areas that the herring occupy, it is difficult ... -
Quantify the monthly to decadal variability of climate effects on the lower trophic levelse of shelf sea ecosystems
(Research report, 2010-02)This report describes three studies using multi-decadal simulations of regional coupled hydrodynamics ecosystem models. These models are used to investigate the relationship between lower trophic level marine ecosystems ... -
Quantify the potential effects on shelf seas-coatal physics/climate and ecosystems from global climate change predictions
(Research report, 2010-02-03)Knowledge of how hydrography, circulation and production on the lower trophic levels will change due to climate change, is crucial for our understanding and management of the ecosystem in the future. Three different models ... -
Quantifying diets for small pelagic fish: effects of weight versus occurrence methods and sampling effort
(Peer reviewed; Journal article, 2023)In the Norwegian Sea, assessment of diet composition relies on annual cruise activity combined with visual identification and weight determination of prey from fish stomachs. This weight-based method is labour intensive, ... -
Quantifying the amount of fish unavailable to a bottom trawl by use of an upward looking transducer
(ICES CM documents, Working paper, 1999)When surveying demersal fish with a wide and variable vertical distribution, it is desirable to combine information from a bottom trawl survey with the information from a hydroacoustic survey into an absolute abundance ... -
Quantifying the escape mortality of trawl caught Antarctic krill (Euphausia superba)
(CCAMLR;WG-EMM-16/04, Conference object, 2016) -
Quantifying the Escape Mortality of Trawl Caught Antarctic Krill (Euphausia superba)
(Journal article; Peer reviewed, 2016-09-13)Antarctic krill (Euphausia superba) is an abundant fishery resource, the harvest levels of which are expected to increase. However, many of the length classes of krill can escape through commonly used commercial trawl mesh ... -
Quantifying the Ocean, Freshwater and Human Effects on Year-to-Year Variability of One-Sea-Winter Atlantic Salmon Angled in Multiple Norwegian Rivers
(Journal article; Peer reviewed, 2011)Many Atlantic salmon, Salmo salar, populations are decreasing throughout the species' distributional range probably due to several factors acting in concert. A number of studies have documented the influence of freshwater ...