Prokaryotic richness and diversity increased during Holocene glacier retreat and onset of an Antarctic Lake
Knowledge about biodiversity changes during transitions from glacial landscape to lake formation is limited to contemporary studies. Here, we combined analyses of lithology, chronology and geochemistry with sedimentary ancient DNA metabarcoding to assess such transition in maritime Antarctica. We inferred three paleoenvironmental stages covering the Holocene glacier retreat process. From 4900 to 3850 years before […]
Mujeres en las ciencias del mar y la ecología acuática en Uruguay
La diversidad de miradas y aproximaciones a un mismo problema resulta en mayores alternativas para su solución. Esto es especialmente relevante en el ámbito de la ciencia y la innovación tecnológica, en el que a las mujeres se las reconoce por promover el trabajo y la interdisciplina con más fuerza que los varones. Pero las […]
Smartphone-derived optical proxies for estimating toxicity risk of Microcystis aeruginosa complex in inland waters
Toxic blooms dominated by cyanobacterial colonies of Microcystis aeruginosa complex (MAC) accumulate in the water surface, so they can be tracked by remote sensing. The abundance of toxic MAC cells is related to colony size, a parameter affecting water-leaving radiance (Lw). Here, we design a strategy to estimate the in situ abundance of toxic MAC […]
Selective enrichment of active bacterial taxa in the Microcystis associated microbiome during colony growth
The toxic cyanobacterium Microcystis causes worldwide health concerns, being frequently found in freshwater and estuarine ecosystems. Under natural conditions, Microcystis spp. show a colonial lifestyle involving a phycosphere populated by a highly diverse associated microbiome. In a previous study, we have proposed that colony formation and growth may be achieved through mechanisms of multispecies bacterial […]