Aquatic ecosystems interactivity of dissolved organic matter (Academic Press, 2003)
Aquatic Ecosystems explains the interplay between various movements of matter and energy through ecosystems mediated by Dissolved Organic Matter. This book provides information on how much DOM there is in a particular aquatic ecosystem and where it originates. It explains whether the DOM composition varies from time to time and place to place. It also details how DOM becomes incorporated into microbial food webs, and gives a better, clarifying, understanding to its significance of DOM. Dissolved Organic Matter (called DOM) is incredibly important in all aquatic ecosystems. Although it might seem that logs and leaves are more important, in fact the DOM is more crucial because the DOM is in a form that is available for use by all the organisms living in the the water. Furthermore, DOM influences complex food webs by mediating the availability of aquatic nutrients, metals, salts and minerals. DOM also affects water clarity, which of course has alters the way animals and plants live and feed in the water. There are many ways to study DOM and this book focuses on several central questions. How much DOM is there in a particular aquatic ecosytem? Where does it come from? Does the composition of the DOM vary from time to time and place to palce? How does DOM become incorporated into microbial food webs, which are the basis of plant, invertebrate and vertebrate food webs? How can the answers to these and other questions about DOM be considered together so that a better understanding of the significance of DOM can emerge?
Includes bibliographical references and index
Supply of dissolved organic matter to aquatic ecosystems : autochthonous sources / Stefan Bertilsson and Jeremy B. Jones Jr. --Sources, production, and regulation of allochthonous dissolved organic matter inputs to surface waters / J.A. Aitkenhead-Peterson, W.H. McDowell and J.C. Neff -- Trace organic moieties of dissolved organic material in natural waters / D.M. McKnight, E. Hood and L. Klapper -- The role of monomers in stream ecosystem metabolism / L.A. Kaplan and J.D. Newbold -- Molecular indicators of the bioavailability of dissolved organic matter / R. Benner -- Large-scale patterns in dissolved organic carbon concentration, flux, and sources / P.J. Mulholland -- The speciation of hydrophobic organic compounds by dissolved organic matter / Yu-Ping Chin -- Elemental complexation by dissolved organic matter in lakes : implications for Fe speciation and the speciation and the bioavailability of Fe and P / R. Maranger and M.J. Pullin --
- The contribution of monomers and other low-molecular weight compounds to the flux of dissolved organic material in aquatic Ecosystems / D.L. Kirchman -- Photochemically mediated linkages between dissolved organic matter and bacterioplankton / M.A. Moran and J.S. Covert -- The importance of organic nitrogen production in aquatic systems : a landscape perspective / N.F. Caraco and J.J. Cole -- The role of biofilms in the uptake and transformation of dissolved organic matter / Helmut Fischer -- Microbial extracellular enzymes and their role in dissolved organic matter cycling / C. Arnosti -- Linkages between dissolved organic matter composition and bacterial community structure / C.M. Foreman and J.S. Covert -- Bacterial response to variation in dissolved organic matter / S. Findlay -- Physiological models in the context of microbial food webs / T. Frede Thingstad -- Patterns in dissolved organic matter lability and consumption across aquatic ecosystems / P.A. del Giorgio and J. Davis --
- Integrating dissolved organic matter metabolism and microbial diversity : an overview of conceptual models / R.L. Sinsabaugh and C.M. Foreman -- Dissolved organic carbon : detrital energetics, metabolic regulators, and drivers of ecosystem stability of aquatic ecosystems / Robert G. Wetzel -- Dissolved organic matter : out of the black box into the mainstream / R.L. Sinsabaugh and S. Findlay