Andrea de Oliveira da Rocha FrancoUniversidade Federal do Rio Grande (FURG) | FURG · Institute of Oceanography - IO
Andrea de Oliveira da Rocha Franco
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I’m interested in Poliphasic Taxonomy (Morphology and Molecular); Phylogeny of Eukariotic Plankton; Ecology of Marine Plankton using metabarcoding and light microscopy analysis; Bioinformatic (Analisys of metabarcoding data, Phylogeny and Molecular species delimitation models)
In many marine littoral and sublittoral benthic habitats, we find small diatoms with few features resolvable with light microscopy (LM) other than internal costae across their valves. While classically those internal costae have defined their identification and classification, the use of electron microscopy and of molecular data have started to rev...
Diatom accumulations are important phenomena that occur on many sandy beaches worldwide, but little is known about their seasonal occurrence and environmental drivers at lower latitudes. The results revealed that the diatom Anaulus cf. australis and Asterionellopsis tropicalis were accumulated on a tropical beach near the Equator (3°41′S; northeast...
The diatom Asterionellopsis glacialis sensu lato forms high-density patches in the surf zone of some sandy beaches worldwide and was until recently considered a cosmopolitan species. With the recent description of four cryptic species, the identity of specimens found in these accumulations remains uncertain. In this study, diatom patches were sampl...
Surf zone diatoms thrive in the harsh conditions of exposed sandy beaches. The patch-forming Asterionellopsis glacialis sensu lato (A. glacialis s. l.) is the main producer in a rich food chain in Cassino Beach, southern Brazil. This work aimed to verify the influence of sediment particles on the quantity and composition of carbohydrates produced i...