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Viruses and the microbial loop
Microbial Ecology, 1994The abundance of viral-like particles in marine ecosystems ranges from 10(8) ml(-1). Their distribution in time and space parallels that of other biological parameters such as bacterial abundance and chlorophyll a. There is a lack of consensus between methods used to assess viral activity, i.e., rate of change in viral abundance (increase or decrease).
G, Bratbak, F, Thingstad, M, Heldal
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The microbial loop in flowing waters
Microbial Ecology, 1994The microbial loop in flowing waters is dependent on allochthonous sources of carbon, which vary in quality. The proportion of dissolved organic carbon (DOC) that can be degraded ranges from
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Inorganic nutrients, bacteria, and the microbial loop
Microbial Ecology, 1994The realization that natural assemblages of planktonic bacteria may acquire a significant fraction of their nitrogen and phosphorus via the uptake of dissolved inorganic nutrients has modified our traditional view of these microorganisms as nutrient remineralizers in plankton communities.
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Sediment Resuspension Effects on the Benthic Microbial Loop in Experimental Microcosms
Microbial Ecology, 2005Sediment resuspension induced by anthropogenic disturbance is becoming a major threat of marine coastal ecosystems worldwide. The effects of sediment resuspension on the pelagic domain and on macro- and meiobenthos are well documented in the literature, whereas the effects on the benthic microbial components are nearly neglected.
PUSCEDDU, ANTONIO +2 more
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Carbon fluxes in the microbial loop: Comments
Microbial Ecology, 1994The heterotrophic bacterial community of oceanic aggregates which mediates particle solubilization, displays features (low carbon demand and low turnover) that are difficult to reconcile with the observed high enzyme activities and cell numbers. Hypotheses are proposed to explain this discrepancy.
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Accurate estimation of microbial loop processes and rates
Microbial Ecology, 1994Our conceptual models of microbial food webs in aquatic ecosystems provide a unifying hypothesis for the design and conduct of field studies. Our ability to provide a rigorous test of these hypotheses, however, relies to a large extent on the availability of precise and accurate methods.
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Modeling the microbial loop: An estuarine modeler's perspective
Microbial Ecology, 1994Contemporary models of the microbial loop should be critically evaluated relative to their compartmental structures, flow networks, and treatment of upper ocean physics (vertical and horizontal boundary conditions). The development of new models that include better representation of the autotrophic components and mixotrophy/competitive interactions is ...
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Structure and functioning of the microbial loop in a boreal reservoir
Inland Water Biology, 2017The abundance and biomass of the main components of the microbial plankton food web (“microbial loop”)—heterotrophic bacteria, phototrophic picoplankton and nanoplankton, heterotrophic nanoflagellates, ciliates and viruses, production of phytoplankton and bacterioplankton, bacterivory of nanoflagellates, bacterial lysis by viruses, and the species ...
D. B. Kosolapov +3 more
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Biodiversity Researches on Microbial Loop in Aquatic Systems
2013The food linkage between heterotrophic bacteria and protists is so-called “microbial loop,” functioning as important matter cycling in pelagic food webs. Biomass of heterotrophic bacteria sometimes predominates total heterotrophic biomass in lakes, and organic matter transfer started from heterotrophic bacteria has been intensively studied by numerous ...
Noboru Okuda +4 more
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Litre-scale microbial fuel cells operated in a complete loop
Applied Microbiology and Biotechnology, 2009Using the anode effluent to compensate the alkalinization in a bio-cathode has recently been proposed as a way to operate a microbial fuel cell (MFC) in a continuous and pH neutral way. In this research, we successfully demonstrated that the operation of a MFC without any pH adjustments is possible by completing the liquid loop over cathode and anode ...
Peter, Clauwaert +3 more
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