Benthic O2 availability regulates many important biogeochemical processes and has crucial
implications for the biology and ecology of benthic communities. Further, the benthic O2 …

The presence, abundance, composition, and growth of periphyton are controlled or
influenced by 5 broad classes of environmental variation: disturbances, stressors, resources …

Lake Untersee is one of the largest (11.4 km2) and deepest (> 160 m) freshwater lakes in
East Antarctica. Located at 71° S the lake has a perennial ice cover, a water column that …

Gas release in photic‐zone microbialites can lead to preservable morphological
biosignatures. Here, we investigate the formation and stability of oxygen‐rich bubbles …

The macroscopic fossil record of the Archean consists solely of stromatolites and other
microbialites, which seldom offer compelling clues to the identities of the organisms that …

The roles of biology in the morphogenesis of microbial mats and stromatolites remain
enigmatic due to the vast array of physical and chemical influences on morphology …

Lake Fryxell is a perennially ice-covered lake in the McMurdo Dry Valleys, Antarctica, with a
sharp oxycline in a water column that is density stabilized by a gradient in salt concentration …

Cyanobacteria are commonly thought of as microbial phototrophs that are characteristic of
warm water environments such as hot springs (Steunou et al., 2006), stratified lakes during …

Stromatolites may be Earth's oldest macroscopic fossils; however, it remains controversial
what, if any, biological processes are recorded in their morphology. Although the biological …

Perennially cold environments in which temperatures remain below 5° C are common
throughout the biosphere (Margesin and Häggblom 2007). In these habitats, the persistent …