Macroinvertebrates and Microbes (Archaea, Bacteria) Offer Complementary Insights into Mine-Pit Lake Ecology

Heterotrophic Planktonic Microbes: Virus, Bacteria, Archaea, and Protozoa

Although heterotrophic marine microorganisms in the open sea have been studied since the late 1800s and early 1900s by pioneers like Fischer, Haeckel, and Calkins (1–3), the contribution of these diminutive species to the food webs of oceanographic systems was not fully recognized until nearly a century later. Attention was drawn to the larger and more conspicuous taxa of photosynthetic protist...

Metagenomic Insights into the Uncultured Diversity and Physiology of Microbes in Four Hypersaline Soda Lake Brines

Soda lakes are salt lakes with a naturally alkaline pH due to evaporative concentration of sodium carbonates in the absence of major divalent cations. Hypersaline soda brines harbor microbial communities with a high species- and strain-level archaeal diversity and a large proportion of still uncultured poly-extremophiles compared to neutral brines of similar salinities. We present the first "me...

Biological invasions: Insights into ecology and evolution

............................................................................................ 7

Conversion of cobinamide into adenosylcobamide in bacteria and archaea.

Benthic macroinvertebrates of a tropical lake: Lake Caçó, MA, Brazil.

Benthic communities are highly relevant in the study of aquatic ecosystems, both for their role in the functioning of the ecosystem and also as markers or indicators of paleo-conditions. Their distribution, as in other communities, is conditioned by abiotic and biotic factors and to their interactions, which determine the structure of the community that is established. The aim of this study was...