{"refrec":{"BRefID":255284,"RR":"<b>Hunter, W.R.; Niederdorfer, R.; Gernand, A.; Veuger, B.; Prommer, J.; Mooshammer, M.; Wanek, W.; Battin, T.J.</b> (2016). Metabolism of mineral-sorbed organic matter and microbial lifestyles in fluvial ecosystems. <i>Geophys. Res. Lett. 43(4)</i>: 1582-1588. <a href=\"http://dx.doi.org/10.1002/2016GL067719\" target=\"_blank\">dx.doi.org/10.1002/2016GL067719</a>","BEntID":247287,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Geophys. Res. Lett. 43(4)</i>: 1582-1588. <a href=\"https://dx.doi.org/10.1002/2016GL067719\" target=\"_blank\">https://dx.doi.org/10.1002/2016GL067719</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hunter, W.R.; Niederdorfer, R.; Gernand, A.; Veuger, B.; Prommer, J.; Mooshammer, M.; Wanek, W.; Battin, T.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hunter, W.R. <i>et al.</i>","Englishabstract":"In fluvial ecosystems mineral erosion, carbon (C), and nitrogen (N) fluxes are linked via organomineral complexation, where dissolved organic molecules bind to mineral surfaces. Biofilms and suspended aggregates represent major aquatic microbial lifestyles whose relative importance changes predictably through fluvial networks. We tested how organomineral sorption affects aquatic microbial metabolism, using organomineral particles containing a mix of 13C, 15N-labeled amino acids. We traced 13C and 15N retention within biofilm and suspended aggregate biomass and its mineralization. Organomineral complexation restricted C and N retention within biofilms and aggregates and also their mineralization. This reduced the efficiency with which biofilms mineralize C and N by 30% and 6%. By contrast, organominerals reduced the C and N mineralization efficiency of suspended aggregates by 41% and 93%. 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