▪ Abstract Heterotrophic bacteria perform two major functions in the transformation of organic
matter: They produce new bacterial biomass (bacterial secondary production [BP]), and they …

Eutrophication has altered food webs across aquatic systems, but effects of nutrient
stoichiometry (varying nutrient ratios) on ecosystem structure and function have received …

Publisher Summary This chapter explores that the pelagic food chain is mainly linear and
short, and there is a relatively close coupling between the primary production and the …

Cyanobacteria of the genus Oscillatoria (Trichodesmium) account for annual inputs of
nitrogen to the world's oceans of about 4.8× 1012 grams while benthic environments …

In recent years, research focused on the organisms of the “microbial loop”(Pomeroy 1974;
Azam et al. 1983) has resulted in a significant body of data on trophic interactions involving …

There has been an explosion of research on marine microbial foodweb processes in the
past decade. Today it is widely accepted that about 50% of the primary production in marine …

More than a decade has passed since the realization that bacteria are quantitatively
important consumers of organic carbon in marine food webs. The basic information on the …

A series of laboratory experiments was performed to measure dissolved organic carbon
(DOC) production during herbivorous grazing by heterotrophic protists (ciliate …

The microbial loop, now widely accepted as an important component of aquatic food webs,
includes bacteria, cyanobacteria, and a variety of amoeboid, flagellated and ciliated protists …

The evidence for a qualitatively and quantitatively important trophic link between planktonic
Protozoa and higher order metazoan consumers is reviewed. the available data are …