The northwestern Barents Sea (NW-BS) is a highly productive region within the transitional zones of an Atlantic to Arctic-dominated marine ecosystem. The steep latitudinal gradients in sea ice concentration, Atlantic and Arctic Water, offer an opportunity to test hypotheses on physical drivers of spatial and temporal variability of net primary production (NPP). However, quantifying NPP in such a ...

The Barents Sea is an inflow shelf sea in the Arctic Ocean which experiences climate change consequently reduction in the sea ice extent thereby significantly impacting its ecological importance. This study investigates seasonal variations in the vertical flux of particulate matter including both particulate organic matter (chl a) and particulate inorganic matterin the form of CaCO3 contributed by ...

The brain is highly dependent on oxygen for its metabolism and, in most mammals, major brain dysfunction occurs already within minutes of insufficient oxygen supply (hypoxia). Oxygen is the final electron acceptor in the electron transport system that drives the production of ATP through oxidative phosphorylation in the mitochondria. The rate at which oxidative phosphorylation produces ATP is dependent ...

Understanding drivers of mercury (Hg) accumulation in freshwater food webs is vital due to its ability to accumulate in organisms and magnify in food webs to potent levels, potentially impacting wildlife and human health. This is of particular concern in regions where fish serve as an important food source. This study explores drivers of Hg accumulation in European perch (Perca fluviatilis) across ...

Blue mussels (Mytilus spp.) are important ecosystem bioengineers and provide numerous of ecosystem services. They are found worldwide, but face a global population decline for unclear reasons in many regions. A pilot study in the subarctic rocky intertidal shore in Northern Norway revealed an unexpected unimodal pattern in the body size of blue mussels along a vertical transect from low to high ...

Social entrepreneurship plays a key role in making tourism an inclusive activity. Literature on the topic is increasing but needs to pay more attention to collaboration, which is crucial for social enterprises. To overcome this gap, the research focuses on the impact that social entrepreneurs’ drivers and barriers towards collaboration might have on providing decent work in rural tourism. The research ...

The optical chain and logger (OptiCAL) is an autonomous ice-tethered observatory equipped with multiple light sensors for mapping the variation of light with depth. We describe the instrument and present an ensemble calibration for downwelling irradiance E_PAR in [µmolm⁻²s⁻¹]. Results from a long-term deployment in the Arctic Ocean demonstrate that the OptiCAL can ...

Dette prosjektet studerte ulike løsninger for å redusere effekten av slitasje fra fossilbasert, ikke-nedbrytbare plastmaterialer som brukes i snurrevad og trålmatter. Prosjektet testet ulike natur-, syntetiske og biologisk nedbrytbare materialer i laboratorium og i felt. Prosjektet kvantifiserte og sannsynliggjorde hvor mye reduksjon i utslipp ulike tiltak og løsninger kan bidra med. Det inkluderes ...

The Arctic’s extreme environmental conditions and remoteness make it a complex and dynamic environment for maritime operators. We find that Arctic shipping has grown by 7% per year over the past decade, despite the hazardous weather and sea-ice conditions that pose risks to vessels operating in the region. As a result of a strong increase in winter sailing, the time ships operate in these extreme ...

The present study examined how climate changes may impact the concentrations of lipophilic organochlorines (OCs) in the blood of fasting High Arctic common eiders (Somateria mollissima) during incubation. Polychlorinated biphenyls (PCBs), 1-dichloro-2,2-bis (p-chlorophenyl) ethylene (p,p′-DDE), hexachlorobenzene (HCB) and four chlordane compounds (oxychlordane, trans-chlordane and trans- and ...