Blar i NORCE Klima og miljø på tittel
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Natural and anthropogenic drivers of escaped farmed salmon occurrence and introgression into wild Norwegian Atlantic salmon populations
(Peer reviewed; Journal article, 2022)Marine aquaculture of Atlantic salmon (Salmo salar) is a relatively new industry where breeding programs have led to rapid genetic change in the captive populations that were built up alongside conspecific wild individuals. ... -
Negative impacts of the sea lice prophylactic emamectin benzoate on the survival of hatchery released salmon smolts in rivers
(Peer reviewed; Journal article, 2020)Emamectin benzoate (EB) is a prophylactic pharmaceutical used to protect Atlantic salmon (Salmo salar) smolts migrating out of rivers and into the ocean against sea lice parasites. Randomized control trials comparing the ... -
Neural activation in photosensitive brain regions of Atlantic salmon (Salmo salar) after light stimulation
(Peer reviewed; Journal article, 2021)Photoreceptive inputs to the teleost brain are perceived as image of the visual world and as photo-modulation of neuroendocrine and neuronal signals. The retina and pineal organ are major receptive organs with projections ... -
Neutralisation of hydrogen peroxide after delousing events; technology development and environmental risk assessment
(NIVA-rapport, Research report, 2021)The present project has conducted experiments in laboratory and pilot scale with chemical neutralisation of hydrogen peroxide, which, in combination with technological treatment pose a possible solution for onboard well ... -
New ecosystems in the deep subsurface follow the flow of water driven by geological activity
(Peer reviewed; Journal article, 2019)Eukarya have been discovered in the deep subsurface at several locations in South Africa, but how organisms reach the subsurface remains unknown. We studied river-subsurface fissure water systems and identified Eukarya ... -
New flood frequency estimates for the largest river in Norway based on the combination of short and long time series
(Peer reviewed; Journal article, 2020)The Glomma River is the largest in Norway, with a catchment area of 154 450 km2. People living near the shores of this river are frequently exposed to destructive floods that impair local cities and communities. Unfortunately, ... -
A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea
(Peer reviewed; Journal article, 2020)Large parcels of organic matter in the deep sea, such as whale carcasses, harbor a very specialized fauna, most famously the bone-eating worms in the genus Osedax (Annelida, Siboglinidae). Although Osedax was first described ... -
New wine in old bottles: Modification of the Na+/K+-ATPase enzyme activity assay and its application in salmonid aquaculture
(Peer reviewed; Journal article, 2023)The Na+, K+ ATPase (NKA) enzyme is important to generate the transmembrane ion gradient in the gills, intestine, and kidneys, hence, is vital for secondary transport of fluids and different solutes in teleosts. Gill NKA ... -
Nidelva - Kunnskapsoppsummering av fiskebiologiske forhold
(LFI - Laboratorium for ferskvannsøkologi og innlandsfiske, Research report, 2021)NVE skal i den kommende planperioden, vurdere nødvendige miljøtiltak for å nå de fastsatte miljømål for Nidelva. For å sikre et godt beslutningsgrunnlag for dette arbeidet, ønsket NVE at Agder Energi laget en samlet rapport ... -
Nitrogen fixation rates in the Guinea Dome and the equatorial upwelling regions in the Atlantic Ocean
(Peer reviewed; Journal article, 2023)Biological nitrogen fixation is a key process balancing the loss of combined nitrogen in the marine nitrogen cycle. Its relevance in upwelling or high nutrient regions is still unclear, with the few available studies in ... -
NorCPM1 and its contribution to CMIP6 DCPP
(Journal article; Peer reviewed, 2021)The Norwegian Climate Prediction Model version 1 (NorCPM1) is a new research tool for performing climate reanalyses and seasonal-to-decadal climate predictions. It combines the Norwegian Earth System Model version 1 (NorESM1) ... -
Norske havforsuringsdata og FNs bærekraftsmål 14.3
(Research report, 2020)IOC (Intergovernmental Oceanographic Commision) har hatt ansvaret for å utvikle en indikator for havforsuring, som er knytta til FN sitt bærekraftsmål for livet i havet. Land, forskere og datasentre har blitt bedt om å ... -
North Atlantic Oscillation in winter is largely insensitive to autumn Barents-Kara sea ice variability
(Peer reviewed; Journal article, 2021)Arctic sea ice extent in autumn is significantly correlated with the winter North Atlantic Oscillation (NAO) in the satellite era. However, questions about the robustness and reproducibility of the relationship persist. ... -
The northern European shelf as an increasing net sink for CO2
(Peer reviewed; Journal article, 2021)We developed a simple method to refine existing open-ocean maps and extend them towards different coastal seas. Using a multi-linear regression we produced monthly maps of surface ocean fCO2 in the northern European coastal ... -
A Novel Moderately Thermophilic Type Ib Methanotroph Isolated from an Alkaline Thermal Spring in the Ethiopian Rift Valley
(Peer reviewed; Journal article, 2020)Aerobic moderately thermophilic and thermophilic methane-oxidizing bacteria make a substantial contribution in the control of global warming through biological reduction of methane emissions and have a unique capability ... -
Nowcasting tracks of severe convective storms in West Africa from observations of land surface state
(Peer reviewed; Journal article, 2022)In tropical convective climates, where numerical weather prediction of rainfall has high uncertainty, nowcasting provides essential alerts of extreme events several hours ahead. In principle, short-term prediction of intense ... -
Nygard pumpekraftverk
(LFI – Laboratorium for ferskvannsøkologi og innlandsfiske, Research report, 2009)Etableringen av Nygard pumpekraftverk har medført spredning av røye fra Skjerjevatnet i Eksingedalsvassdraget til Modalsvassdraget. Det er utarbeidet en overvåkingsplan for de vatna som er potensielle resipienter for røye. ... -
Nygard pumpekraftverk
(LFI – Laboratorium for ferskvannsøkologi og innlandsfiske, Research report, 2008)Etableringen av Nygard pumpekraftverk har medført spredning av røye fra Skjerjevatnet i Eksingedalsvassdraget til Modalsvassdraget. Det er utarbeidet en overvåkingsplan for de vatna som er potensielle resipienter for røye. ... -
Nygard pumpekraftverk: Kontrollfiske i Stølsvatnet og Steinslandsvatnet 2009
(LFI – Laboratorium for ferskvannsøkologi og innlandsfiske, Research report, 2009)Etableringen av Nygard pumpekraftverk har medført spredning av røye fra Skjerjevatnet i Eksingedalsvassdraget til Modalsvassdraget. Det er utarbeidet en overvåkingsplan for de vatna som er potensielle resipienter for røye. ... -
Nygard Pumpekraftverk: Prøvefiske i Askjelldalsvatnet 2006
(LFI – Laboratorium for ferskvannsøkologi og innlandsfiske, Research report, 2007)Utløpselva fra Skjerjevatnet, Skjerjo, har en tett bestand av røye. Enkelte individer fra denne bestanden har vandret ut av Skjerjo og gitt opphav til en tynn røyebestand i Askjelldalsvatnet. Tidligere prøvefiske av ...