Browsing Artikler, kapitler og presentasjoner fra NORCE Klima og miljø by Title
Now showing items 251-270 of 405
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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 ... -
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 ... -
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) ... -
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 ... -
Observation-based Sea surface temperature trends in Atlantic large marine ecosystems
(Peer reviewed; Journal article, 2022)Variations in Sea Surface Temperature (SST) are an important driver of marine species abundance in Large Marine Ecosystems (LMEs). Studies concerned with climate change induced SST trends within these LMEs have so far been ... -
Ocean Biogeochemical Predictions—Initialization and Limits of Predictability
(Peer reviewed; Journal article, 2020)Predictions of ocean biogeochemistry, such as primary productivity and CO2 uptake, would help to understand the changing marine environment and the global climate. There is an emerging number of studies where initialization ... -
Ocean biogeochemistry in the Norwegian Earth System Model version 2 (NorESM2)
(Peer reviewed; Journal article, 2020)The ocean carbon cycle is a key player in the climate system through its role in regulating the atmospheric carbon dioxide concentration and other processes that alter the Earth's radiative balance. In the second version ... -
On the climatic influence of CO2 forcing in the Pliocene
(Journal article; Peer reviewed, 2023)Understanding the dominant climate forcings in the Pliocene is crucial to assessing the usefulness of the Pliocene as an analogue for our warmer future. Here, we implement a novel yet simple linear factorisation method to ... -
On the Potentials and Limitations of Attributing a Small-Scale Climate Event
(Peer reviewed; Journal article, 2022)Intense convective storms can be hazardous when occurring over large populated cities. In a changing climate, decision makers and the general public increasingly need to be able to better understand if and to what extent ... -
Optimal sensors placement for detecting CO2 discharges from unknown locations on the seafloor
(Peer reviewed; Journal article, 2020)Assurance monitoring of the marine environment is a required and intrinsic part of CO2 storage project. To reduce the costs related to the monitoring effort, the monitoring program must be designed with optimal use of ... -
Overview of the Norwegian Earth System Model (NorESM2) and key climate response of CMIP6 DECK, historical, and scenario simulations
(Peer reviewed; Journal article, 2020)The second version of the coupled Norwegian Earth System Model (NorESM2) is presented and evaluated. NorESM2 is based on the second version of the Community Earth System Model (CESM2) and shares with CESM2 the computer ...