%0 Book %T Responses of filamentous cyanobacteria to natural and anthropogenic changes in the Baltic Sea %A Isensee, Kirsten %D 2011 %G English %F 766616584 %O vorgelegt von Kirsten Isensee %O Rostock, Univ., Mathematisch-Naturwiss. Fak., Diss., 2012 %X The studies concentrated on 2 diazotrophic cyanobacteria species, Nodularia spumigena and Aphanizomenon sp.. The dissertation includes diurnal observations, laboratory and field studies. The experiments aimed to observe variations concerning day/night rhythms and anthropogenic induced changes of pCO2 levels. I showed 2 to 4 fold diurnal variations within DIC, N2, DIP incorporations, related to daytime and bloom development. Further I showed stimulated C and N2 fixation rates with increasing pCO2 at sufficient DIP concentrations. Reduced or depleted DIP concentrations debate this effect. %L WI 9550 %9 theses %9 Text %9 Hochschulschrift %U http://rosdok.uni-rostock.de/resolve?urn=urn:nbn:de:gbv:28-diss2013-0129-1 %U http://rosdok.uni-rostock.de/resolve?urn=urn:nbn:de:gbv:28-diss2013-0129-1&pdf %U http://nbn-resolving.de/urn:nbn:de:gbv:28-diss2013-0129-1