The process is performed primarily by heterotrophic bacteria ( such as " Paracoccus denitrificans " and various pseudomonads ), although autotrophic denitrifiers have also been identified ( e . g ., " Thiobacillus denitrificans " ).
12.
Organic matter that sinks but is not buried by a sufficiently deep layer of sediment is subject to re-suspension by changing ocean currents, bioturbation by organisms that live in the top layer of marine sediments, and decomposition by heterotrophic bacteria.
13.
In January 2015, following the complete breakdown in communication between the city and the county on the Legionnaires'investigation, the county filed a FOIA request with the city, seeking " specific water testing locations and laboratory results . . . for coliform, E-coli, heterotrophic bacteria and trihalomethanes " and other information.
14.
In some applications, multiple terms of the form [ S / ( K s + S ) ] are multiplied together where more than one nutrient or growth factor has the potential to be limiting ( e . g . organic matter and oxygen are both necessary to Heterotrophic bacteria ).
