Danube Delta shallow lakes experience cyanobacteria blooms that can negatively affect the aquatic ecosystem. Although there are several studies on cyanobacteria, little is known about their spatial–temporal patterns and potential predictive role they offer. We therefore analyzed distribution of in 19 belonging to three lake complexes tested whether seasonal dynamics line with predictions PEG mo...

Objective. The objective of this research was to evaluate the caries control potential of a new fluoride mouthrinse that also contained antimicrobial agents and a biofilm disrupting agent using different in vitro models. Methods. Four in vitro studies were conducted to assess the performance of this three pronged approach to caries control: (1) traditional enamel fluoride uptake, (2) surface mi...

Phytoplankton may function as a 'sensor' of changes in aquatic environment and responds rapidly to such changes. In freshwaters, coexistence of species that have similar ecological requirements and show the same environmental requirements frequently occurs; such species groups are named functional groups. The use of phytoplankton functional groups to evaluate these changes has proven to be very...

Functional traits (FT) offer a new framework to understand the ecology of organisms and overcome taxonomic difficulties that currently limit the study of minute soil taxa. FT are likely to be selected by environmental filters and hence they may provide more direct information on ecosystem characteristics than the species composition of a community. We tested the potential of testate amoeba (TA)...

The bacterioplanktonic abundance, biomass, and production within a tropical lagoon (Cabiúnas, Brazil) and two temperate lakes (Stechlin and Dagow, Germany) were compared. Bacterial abundance and production were significantly different among the three water bodies. The lowest bacterial production (0.8 microg C l(-1) d(-1)) was observed in the tropical Cabiúnas Lagoon despite its higher mean temp...

Biofilms are bacterial colonies enveloped in a matrix of extracellular polymeric secretions. Confocal scanning laser microscopy has been used in conjunction with different image analysis techniques to investigate the structure of biofilms. A major goal is to reconstitute the three-dimensional structure of biofilms, and compute or estimate the biovolumes. Our previous research focused on the uti...

The abundance and size distribution of marine particles control a range biogeochemical ecological processes in the ocean, including carbon sequestration. These quantities are result complex physical-biological interactions that difficult to observe, their spatial temporal patterns remain uncertain. Here, we present novel analysis particle distributions (PSDs) from global compilation situ Underw...

Abstract The effectiveness of constructed wetlands (CWs) created to improve water quality has been demonstrated. However, their role in enhancing biodiversity, such as plankton communities, is still understudied. To assess this, we analysed, over two years, the three structurally different CWs which are intermediaries between low-quality waters and a protected Mediterranean wetland ( Albufera d...

Benthic diatoms are well known bioindicators of water quality, used in many aquatic ecosystems. Since diatom-based monitoring quality is required by European legislation, the search for methods that facilitate this task has become more relevant. The aim study was to test reliability DNA metabarcoding combined with high-throughput sequencing (HTS) techniques bioassessment 22 Mediterranean shallo...