... Primary production Grazing pressure Kongsfjorden Primary production by phytoplankton represents the base of pelagic food webs and strongly influences biogeochemical cycles ( Falkowski et al., 1998 ). Especially in high latitude areas with strong seasonality, the mass accumulation of phototrophic...

... (1.8 × 10 11 g C yr −1 ) lower than the new production supported by marine nutrients (7.3 × 10 12 g C yr −1 ). Although the potential contribution of river nutrients to new primary production is small (2.4%) at the bay-wide scale, it can be significant locally. Daily streamflow data for subarctic...

... biomass and primary productivity dominated by small cells (<5 µm) that are reliant on recycled nutrients. Using combined 13 C/ 15 N stable isotope incubations, we calculated an average depth-integrated dissolved inorganic carbon uptake (net primary production) rate of 23.1 mmol C m –2 d –1 throughout...

... and under-ice trawling. We estimated biomass and primary production of ice algae and under-ice phytoplankton as well as biomass, carbon demand, and secondary production of sea-ice meiofauna (>10 µm) and under-ice fauna (>300 µm). Sea-ice meiofauna biomass (0.1–2.8 mg C m –2 ) was dominated...

... marine Arctic primary production Satellite records indicate that the minimum annual sea ice extent in the Arctic has been decreasing by more than 10% per decade over the last half century ( Vaughan et al., 2013 ), which results in a longer and more widespread open-water season ( Barber et al...