Record Display for the EPA National Library CatalogRECORD NUMBER: 5 OF 7
|Main Title||Modeling Carbon Utilization by Bacteria in Natural Water Systems. (Chapter 9).|
|Author||Connolly, J. P. ; Coffin, R. B. ; Landeck, R. E. ;|
|CORP Author||Environmental Research Lab., Gulf Breeze, FL. Office of Research and Development. ;Manhattan Coll., Bronx, NY. Dept. of Environmental Engineering.|
|Additional Subjects||Carbon cycle ; Mathematical models ; Food chains ; Plankton ; Genetics ; Aquatic bacteria ; Substrates ; Biotechnology ; Risk assessment ; Bioassays ; Aquatic microbiology ; Kinetics ; Field tests ; Reprints ; DOC(Dissolved organic carbon) ; Dissolved organic carbon ; POC(Particulate organic carbon) ; Particulate organic carbon ; In situ natural substrates ; Natural water systems|
A mathematical model of carbon fluxes through the heterotrophic microbial food web is developed from a synthesis of laboratory and field research. The basis of the model is the segregation of organic carbon into lability classes that are defined by bioassay experiments. Bacteria, phytoplankton, nano-, micro- and mesozooplankton and dissolved organic carbon (DOC) and particulate organic carbon (POC) are modeled. The descriptions of bacterial growth and utilization of the various classes of substrate were treated as 'universal constants' in the application of the model to three distinct ecosystems, ranging from oligotrophic to highly eutrophic. The successful application of the model to these diverse ecosystems supports the basic validity of the description of the microbial food web and the dynamics of carbon flux.