A5046874769- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Methane Hydrates and Related Phenomena
- Polar Research and Ecology
- Marine Bivalve and Aquaculture Studies
- Marine Biology and Environmental Chemistry
- Isotope Analysis in Ecology
- Protist diversity and phylogeny
- Climate change and permafrost
- Aquatic Ecosystems and Phytoplankton Dynamics
- Pharmaceutical and Antibiotic Environmental Impacts
- Microplastics and Plastic Pollution
- Marine and fisheries research
- Wastewater Treatment and Nitrogen Removal
- Marine Toxins and Detection Methods
- Arctic and Antarctic ice dynamics
- Marine and environmental studies
- Bacteriophages and microbial interactions
- Genomics and Phylogenetic Studies
- Marine Sponges and Natural Products
- Environmental DNA in Biodiversity Studies
- Cryospheric studies and observations
- Vibrio bacteria research studies
- Marine Ecology and Invasive Species
National Research Council
2015-2025
Institute for Coastal Marine Environment
2005-2018
Institute of Marine and Coastal Research
2013
Istituto Sperimentale Agronomico
1992-2005
Microcosm experiments simulating an oil spill event were performed to evaluate the response of natural microbial community structure Messina harbour seawater following accidental load petroleum.An experimental microcosm, supplemented with nutrients and crude oil, was monitored above 15 days in comparison unpolluted ones (control microcosms). Bacterial cells counted a Live/Dead BacLight viability kit; leucine aminopeptidase, beta-glucosidase, alkaline phosphatase, lipase esterase enzymes...
Summary In September 2008, an expedition of the RV Urania was devoted to exploration genomic richness deep hypersaline anoxic lakes (DHALs) located in Western part Mediterranean Ridge. Approximately 40 nautical miles SE from Lake, presence lake, which we named Thetis , confirmed by swath bathymetry profiling and through immediate sampling casts. The brine surface Lake is at a depth 3258 m with thickness ∼157 m. Brine composition found be thalassohaline, saturated NaCl total salinity 348‰,...
Abstract. In September 2021, as part of the Italian Arctic research programme, a multidisciplinary cruise along 75th parallel north through Greenland Sea Gyre was conducted aboard icebreaker Laura Bassi CASSANDRA project, which also contributed to Synoptic Survey (SAS) 2020/22. The took place during period lowest summer sea ice extent ever measured. data show strong horizontal gradients with temperatures between 1.5 °C and 9.0 salinity 30 35. Warm salty Atlantic Water (AW, θ > 3.0 °C, S...
Abstract Planktonic communities hold a relevant role within the EU Marine Strategy Framework Directive (MSFD). In view of reaching Good Environmental Status marine ecosystems, this phyto- and zooplanktonic have received great attention, while Prokaryotes (Bacteria, Archaea, Cyanobacteria) been neglected. Indeed, relevance microbes (particularly faecal pollution indicators) as water quality indicators, that microorganisms play biogeochemical fluxes in whole ecosystem functioning, are all...
Very few studies have investigated marine microbial colonization in polar regions, but climate-changing scenarios stress the importance of these investigations to protect life such extremely vulnerable ecosystems. In two different coastal sites Ross Sea (Road and Tethys Bays, Antarctica) exposed stressors, biofilm colonizing surface plastic (polyvinyl chloride, PVC, polyethylene, PE) panels left submerged experiments at timescales (“short-term”: 3 months, “long-term”: 9 12 months) was...
The microbial colonization of plastic substrates made polyvinylchloride (PVC) and polyethylene (PE) was studied in Tethys Road Bays (Ross Sea, Antarctica) order to evaluate the metabolic profiles plastisphere community comparison with those surrounding waters. PVC PE panels, mounted on stainless steel structures, were deployed austral summer 2017 at 5 20 m recovered one year later four different stations (Amorphous Glacier-AG potentially impacted by ice-melting process, its control site...
Two distinct pressurized hypersaline brine pockets (named TF4 and TF5), separated by a thin ice layer, were detected below an ice-sealed Antarctic lake. Prokaryotic (bacterial archaeal) diversity, abundances (including virus-like particles) metabolic profiles investigated integrated approach, including traditional new-generation methods. Although similar diversity indices computed for both Bacteria Archaea, bacterial archaeal assemblages observed. Bacteroidetes Gammaproteobacteria more...
Abstract This explorative study was aimed at first characterizing the sponge Spongilla lacustris (Linnaeus, 1759) from sub‐Arctic Pasvik River (Northern Fennoscandia), in terms of associated microbial communities and pollutant accumulation. Persistent organic pollutants were determined mesohyl tissues, along with estimation enzymatic activity rates, prokaryotic abundance morphometric traits, analysis taxonomic bacterial diversity by next‐generation sequencing techniques. The main groups S....
The sea bottom acts as a key natural archive where the memory of long-term timescale environmental changes is recorded. This study discusses some ecological and chemical features fjord sediments that were explored during AREX cruise carried out in Svalbard archipelago summer 2021. activity rates enzymes leucine aminopeptidase (LAP), beta-glucosidase (GLU), alkaline phosphatase (AP) community-level physiological profiles (CLPPs) studied with aim determining functional diversity benthic...
Polar marine environments host a complex assemblage of cold-adapted auto- and heterotrophic microorganisms that affect water biogeochemistry ecosystem functions. However, due to logistical difficulties, remote regions like those in close proximity glaciers have received little attention, resulting paucity microbiological data. To fill these gaps obtain novel insights into microbial structure function Arctic regions, survey communities an area the Blomstrandbreen glacier Kongsfjorden...
The abundance, morphotypes and biomass of the bacterial assemblages were investigated in Ionian Sea by using two different methods: epifluorescent microscopy technique for enumerating sizing cells, determination lipopolysaccharides (LPS).Five distinguished: cocci, rods, coccobacilli, vibrios spirillae.The proportions cocci higher than those other at every depth, ranging from 39% to 73%.Both rod-shaped bacteria coccobacilli homogenously distributed water column, while rather...
A synthesis of field data carried out in the Mediterranean Sea are presented, aimed at contributing to knowledge three prokaryotic-mediated processes and their implications on Carbon cycle. The distribution exoenzymatic activities, secondary production respiration rates was studied together with prokaryotic abundances. Particular attention paid meso- bathypelagic layers which play an important role carbon study is noteworthy because its large spatial scale spanning entire over 4 years. In...
The Ionian Sea represents a suitable basin for studying the biogeochemical processes mediated by microbial activities. Because of its characteristics as crossing region between western and eastern Mediterranean Sea, it is one sites most affected changes in water mass composition dynamics, caused Eastern Transient (EMT). To date, relatively few data exist on activities pelagic areas Sea. From 1998 to 2004, during different research cruises, prokaryotic parameters (abundance, extracellular...