First evidence of an intensive bloom of the coccolithophore Syracosphaera halldalii in a highly variable estuarine environment (Krka River, Adriatic sea)

2021 ◽  
Author(s):  
Sanda Skejić ◽  
Jasna Arapov ◽  
Mia Bužančić ◽  
Živana Ninčević Gladan ◽  
Ana Bakrač ◽  
...  
Keyword(s):  
Adriatic Sea ◽  
Estuarine Environment

210Pb transport by sinking particles at a selected site of the Southern Adriatic Sea

2003 ◽  
Vol 107 ◽  
pp. 879-882 ◽  
Author(s):  
S. Miserocchi ◽  
M. Frignani ◽  
L. Langone ◽  
S. Albertazzi
Keyword(s):  
Adriatic Sea ◽  
Sinking Particles

Impact of bleaching on the coral Cladocora caespitosa in the eastern Adriatic Sea

2014 ◽  
Vol 509 ◽  
pp. 193-202 ◽  
Author(s):  
P Kružić ◽  
L Lipej ◽  
B Mavrič ◽  
P Rodić
Keyword(s):  
Adriatic Sea ◽  
Cladocora Caespitosa

Spatial persistence of megazoobenthic assemblages in the Adriatic Sea

2017 ◽  
Vol 566 ◽  
pp. 31-48 ◽  
Author(s):  
A Santelli ◽  
I Cvitković ◽  
M Despalatović ◽  
G Fabi ◽  
F Grati ◽  
...  
Keyword(s):  
Adriatic Sea

REGIONAL RESPONSE OF MARINE BIODIVERSITY TO CLIMATE-DRIVEN SEA-LEVEL CHANGES: AN EXAMPLE FROM THE ADRIATIC SEA

2016 ◽  
Author(s):  
Michal Kowalewski ◽  
◽  
Kristopher M. Kusnerik ◽  
Daniele Scarponi ◽  
Fabio Trincardi ◽  
...  
Keyword(s):  
Sea Level ◽  
Adriatic Sea ◽  
Marine Biodiversity ◽  
Sea Level Changes

Quantification and Classification of Beach Litter in Montenegro (South-East Adriatic Sea)

2021 ◽  
Author(s):  
Milica Mandić ◽  
Slađana Gvozdenović ◽  
Ines Peraš ◽  
Aleksandra Ivanović ◽  
Nemanja Malovrazić
Keyword(s):  
Adriatic Sea ◽  
Beach Litter

scholarly journals Tetrodotoxins (TTXs) and Vibrio alginolyticus in Mussels from Central Adriatic Sea (Italy): Are They Closely Related?

Marine Drugs ◽  
2021 ◽  
Vol 19 (6) ◽  
pp. 304
Author(s):  
Simone Bacchiocchi ◽  
Debora Campacci ◽  
Melania Siracusa ◽  
Alessandra Dubbini ◽  
Francesca Leoni ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Mytilus Galloprovincialis ◽  
Polyketide Synthase ◽  
Adriatic Sea ◽  
Tandem Mass ◽  
Hydrophilic Interaction ◽  
Marche Region ◽  
Peptide Synthetase ◽  
Scientific Opinion ◽  
Vibrio Spp

Tetrodotoxins (TTXs), potent neurotoxins, have become an increasing concern in Europe in recent decades, especially because of their presence in mollusks. The European Food Safety Authority published a Scientific Opinion setting a recommended threshold for TTX in mollusks of 44 µg equivalent kg−1 and calling all member states to contribute to an effort to gather data in order to produce a more exhaustive risk assessment. The objective of this work was to assess TTX levels in wild and farmed mussels (Mytilus galloprovincialis) harvested in 2018–2019 along the coastal area of the Marche region in the Central Adriatic Sea (Italy). The presence of Vibrio spp. carrying the non-ribosomal peptide synthetase (NRPS) and polyketide synthase (PKS) genes, which are suspected to be involved in TTX biosynthesis, was also investigated. Out of 158 mussel samples analyzed by hydrophilic interaction liquid chromatography coupled with tandem mass spectrometry (HILIC-MS/MS), 11 (7%) contained the toxins at detectable levels (8–26 µg kg−1) and 3 (2%) contained levels above the EFSA safety threshold (61–76 µg kg−1). Contaminated mussels were all harvested from natural beds in spring or summer. Of the 2019 samples, 70% of them contained V. alginolyticus strains with the NRPS and/or PKS genes. None of the strains containing NRPS and/or PKS genes showed detectable levels of TTXs. TTXs in mussels are not yet a threat in the Marche region nor in Europe, but further investigations are surely needed.

scholarly journals Artificial neural network analysis of microbial diversity in the central and southern Adriatic Sea

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Danijela Šantić ◽  
Kasia Piwosz ◽  
Frano Matić ◽  
Ana Vrdoljak Tomaš ◽  
Jasna Arapov ◽  
...  
Keyword(s):  
Neural Network ◽  
Network Analysis ◽  
Bacterial Community ◽  
Microbial Diversity ◽  
Community Composition ◽  
Adriatic Sea ◽  
Bacterial Community Composition ◽  
Environmental Data ◽  
Large Contribution ◽  
Neural Network Analysis

AbstractBacteria are an active and diverse component of pelagic communities. The identification of main factors governing microbial diversity and spatial distribution requires advanced mathematical analyses. Here, the bacterial community composition was analysed, along with a depth profile, in the open Adriatic Sea using amplicon sequencing of bacterial 16S rRNA and the Neural gas algorithm. The performed analysis classified the sample into four best matching units representing heterogenic patterns of the bacterial community composition. The observed parameters were more differentiated by depth than by area, with temperature and identified salinity as important environmental variables. The highest diversity was observed at the deep chlorophyll maximum, while bacterial abundance and production peaked in the upper layers. The most of the identified genera belonged to Proteobacteria, with uncultured AEGEAN-169 and SAR116 lineages being dominant Alphaproteobacteria, and OM60 (NOR5) and SAR86 being dominant Gammaproteobacteria. Marine Synechococcus and Cyanobium-related species were predominant in the shallow layer, while Prochlorococcus MIT 9313 formed a higher portion below 50 m depth. Bacteroidota were represented mostly by uncultured lineages (NS4, NS5 and NS9 marine lineages). In contrast, Actinobacteriota were dominated by a candidatus genus Ca. Actinomarina. A large contribution of Nitrospinae was evident at the deepest investigated layer. Our results document that neural network analysis of environmental data may provide a novel insight into factors affecting picoplankton in the open sea environment.

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