Environmental Drivers Controlling Bacterial and Archaeal Abundance in the Sediments of a Mediterranean Lagoon Ecosystem

• DOI: 10.1007/s00284-018-1503-3
• Publication Date: 2018-05-15T09:37:54Z
• Authors: Claudia Pala; Massimiliano Molari; Daniele Nizzoli; Marco Bartoli; Pierluigi Viaroli; Elena Manini
• Keywords: Biogeochemical Cycle; Lake ecosystem

The environmental factors controlling the abundance of Bacteria and Archaea in lagoon ecosystems are poorly understood. Here, an integrated physico-chemical, biogeochemical, microbiological survey was applied Sacca di Goro (Po River Delta, Italy) to investigate variation bacterial archaeal abundance, as assessed by Fluorescence In Situ Hybridization, along winter summer gradients. We hypothesised that cells respond differentially physico-chemical parameters sediment, which can be manifested variations total number. Our results suggest important component microbial communities (up 20%) they also quite constant sediment depth investigated, while tend decrease subsurface sediments. abiotic (i.e. temperature, ammonium, pH) trophic chlorophyll a) explain distribution, raise interesting questions about ecological significance composition this area.