Knut Yngve Børsheim

KYB.

Major research fields: Microbiology, microbial ecology, marine biogeochemistry, global carbon cycle Address Institute of Marine Research, Oceanography and Climate, Nordnesgaten 33, B.p. 1870 Nordnes, NO-5817 Bergen, Norway Phone +47 55 23 84 91 / +47 411 049 59 Affiliations Institute of Marine Research, Oceanography and Climate Group, Bergen, Norway. Department of Biology, Aquatic Microbiology Group, University of Bergen, Bergen, Norway. BCCR – Bjerknes Centre for Climate Research, Bergen. Norway.

Highlights from research

2010 -> Biological effects of ocean acidification will presumably keep me busy the next years.

2004-2010

I moved to my home town Bergen and to the Institute for Marine Research. The research on microbiology in the global carbon cycle included field work in the polar regions and the Greenland Sea within the EU projects CARBOOCEAN and EUR-OCEANS, and the IPY project Polar Aquatic Microbial Ecology (PAME). From our field work in Ny Ålesund we reported the counterintuitive carbon-to-nutrient coupling in an Arctic pelagic ecosystem (Nature 455, 387 – 390).

1999-> 2004

Implications of the participation of DOC in the vertical transport of carbon from the surface of the ocean to the ocean’s interior (Noji, T., Børsheim, K.Y., Rey, F., and Nortvedt, R. 1999. Sarcia 84:129-135; Børsheim, K.Y. 2000. Aq. Microb. Ecol. 21:115:123). Participation on the Norwegian Antarctic Research Expedition to the Southern Ocean in the austral summer of 2001. The experimental proof of the oxopolysaccharidic nature of the preservative substance in Sphagnum mosses (Børsheim et al. 2001, Innov. Food Sci. Emerg. Technol. 2:63-74). Measurement of primary production in Antarctic water and ice algae communities by Pulse Amplitude Modulated fluorometry (PAM) and mortality of phytoplankton by enzymatic assays (see Antarctica-2001).

1989-1999

The discovery of high numbers of viruses in marine and lacustrine environments (Bergh, Ø., Børsheim, K.Y., Bratbak., G. & Heldal, M. 1989. Nature 340:467-468; Børsheim, K.Y., Bratbak., G. & Heldal, M. 1990. Appl. Environ. Microbiol. 56:352-356; Børsheim, K.Y. 1993. FEMS Microbiology Ecology 102:141-159. The discovery of high transient concentrations of DOC in the euphotic zone of marine environments (Børsheim, K.Y. and Myklestad, S.M. 1997. Deep-Sea Research 44:593-601; Børsheim, K.Y., Myklestad, S.M. and Sneli, J-.A. 1999. Mar. Chem. 1598:255-272).

1980-1989

Development of new methods for the measurement of grazing on bacteria by protozoa and aquatic crustaceans (Børsheim, K.Y. 1984. Oecologia 63:286-288; Børsheim, K.Y. & Olsen, Y. 1984. Verh. Internat. Ver. Limnol. 22:644-648; Børsheim, K.Y. & Bratbak, G. 1987. Mar. Ecol. Prog. Ser. 36:171-175). The incorporation of grazing on bacteria in the carbon cycle of lake ecosystems (Børsheim, K.Y. & Andersen, S. 1987. J. Plankton Res. 9:367-369; Johnsen, G.H. & Børsheim, K.Y. 1988. J. Plankton Res. 10:319-325; Børsheim, K.Y. et al. 1988. J. Plankton Res. 10:921-939). The measurement of bacterial production in a variety of environments (Børsheim, K.Y. et al. 1988. J. Plankton Res. 10:921-939; Børsheim, K.Y. 1990. Deep-Sea Research 37:1297-1309)