Amin RM, Balmstedt U, Nejstgaard JC, Capua DI
mesocosm, plankton community, Respiratory carbon requirement, Energy transfer, Skeletonema, mesozooplankton, Calanus, Bergen, Espegrend, Norway, 11 m3
ABSTRACT: We studied the effect of variable phytoplankton biomass and dominance of thediatom Skeletonema marinoi on the planktonic community respiratory carbon requirement over aperiod of 14 d (14 to 28 April 2008) in 3 different mesocosms filled with natural water at Espegrendmarine biological field station in Raunefjord, Norway. The carbon requirement was measured onmesozooplankton (the calanoid copepod Calanus finmarchicus) and 3 other size fractions of plankton—50% of the primary production, while bacterioplanktonshowed an intermediate and variable contribution (ca.