Heterotrophic Activity in the SeaPeter J.LeB. Williams, John E. Hobbie Introduction This book contains papers given at a NATO Advanced Research Institute (A.R.I.) held at Caiscais, Portugal, in November, 1981. The subject of the A.R.I. was marine heterotrophy; this is defined as the process by which the carbon autotrophically fixed into organic compounds by photosynthesis is transformed and respired. Obviously all animals and many microbes are heterotrophs but here we will deal only with the microbes. Also, we restricted the A.R.I. primarily to microbial heterotrophy in the water column even though we recognize that a great deal occurs in sediments. Most of the recent advances have, in fact, been made in the water column because it is easier to work in a fluid, apparently uniform medium. The reason for the A.R.I. was the rapid development of this subject over the past few years. Methods and arguments have flourished so it is now time for a review and for a sorting out. We wish to thank the NATO Marine Science Committee for sharing this view, F. Azam, A.-L. Meyer-Reil, L. Pomeroy, C. Lee, and B. Hargrave for organizational help, and H. Lang and S. Semino for valuable editing aid. |
Contents
or tight controls | 1 |
controlled by graz | 9 |
Contributors Index | 18 |
Copyright | |
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activity algae algal amino acids aquatic Atlantic bacteria bacterial growth bacterial production bacterioplankton Biol biomass calculated carbohydrates cells changes ciliates coastal waters compounds cultures Deep-Sea Res depth diel dilution dissolved organic distribution DNA synthesis Ecol Ecology ecosystems environments Eppley estimates estuarine excretion Fenchel filters flagellates flux fraction Fuhrman and Azam glucose growth rate Hagström heterotrophic incorporation incubation inorganic kinetic Limnol lipids marine snow material measurements metabolism method microbial Microbiol microorganisms Morita nanoplankton natural nitrate nitrogen nutrient observed oceanic waters Oceanogr oligotrophic organic carbon organic matter oxidation oxygen P. J. leB Pacific particles particulate matter particulate organic pelagic photosynthesis phytoplankton picoplankton plankton populations primary production protein protozoa psychrophilic ratio release respiration samples sea water seawater sediments Sieburth specific studies substrate substrate concentration suspended suspension feeders technique temperature thymidine tion transport trophic uptake utilization values water column Wiebe Williams zooplankton