Marine dissolved organic carbon (DOC) exhibits a spectrum of reactivity, from very fast
turnover of the most bioavailable forms in the surface ocean to long-lived materials …

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

In both marine and freshwaters, the concentration of dissolved organic nitrogen (DON)
frequently exceeds that of dissolved inorganic nitrogen (DIN), including ammonium, nitrate …

Bacterial Biogeochemistry, Third Edition focuses on bacterial metabolism and its relevance
to the environment, including the decomposition of soil, food chains, nitrogen fixation …

Though not typically regarded as “biomarkers” in the traditional sense of the word, the
radioactive and stable isotopes of carbon (14C and 13C, respectively) can serve as powerful …

Resource limitation controls the base of food webs in many aquatic ecosystems. In coastal
ecosystems, nitrogen (N) has been found to be the predominant limiting factor for primary …

Batch cultures of aquatic bacteria and dissolved organic matter were used to examine the
impact of carbon source concentration on bacterial growth, biomass, growth efficiency, and …

The utilization of dissolved organic carbon (DOC) by bacteria in grazer-free cultures can be
used to measure the concentration of labile DOC (DOCL). A database of 126 measurements …

Batch cultures of Chaetoceros affinis grown under nitrogen-(N: P= 5) and phosphorus-(N: P=
100) limited conditions exhibited 30 and 100% higher rates of photosynthetic extracellular …

The use of natural 14C in aquatic and marine studies provides unique source, turnover and
processing information with respect to local, regional and global carbon budgets. The …