▪ Abstract The hyporheic zone is an active ecotone between the surface stream and
groundwater. Exchanges of water, nutrients, and organic matter occur in response to …

Riparian zones hold a central place in the hydrological cycle, owing to the prevalence of
surface and groundwater interactions. In riparian transition zones, the quality of exfiltrating …

The current knowledge of microbial biocenoses (communities) in pristine aquifers is
presented in a review, which also discusses their relevance for questions of groundwater …

We used in situ hybridization with fluorescently labeled rRNA-targeted oligonucleotide
probes concurrently with measurements of bacterial carbon production, biomass, and …

Most cryospheric ecosystems are energy limited. How their energetics will respond to
climate change remains largely unknown. This is particularly true for glacier-fed streams …

Dissolved organic carbon (DOC) dominates the flux of organic matter in most stream
ecosystems, but the proportion susceptible to microbial degradation is often presumed to be …

This study quantified new biomass production of algae and bacteria in both benthic and
pelagic habitats of clear‐water lakes to contrast how carbon from the atmosphere and …

The bacterial activity in sediments is often low considering the generally high bacterial
abundance. Still, a large fraction of bacteria have been found active even in deep …

1. The microbial metabolism of organic matter in rivers has received little study compared
with that of small streams. Therefore, we investigated the rate and location of bacterial …

The differential ability of natural sediment biofilms to store and metabolize specific dissolved
organic carbon (DOC) fractions was studied with a set of perfusion experiments that …