scholarly journals Enzymatic activity and organic substrates on a sandy beach of the Ligurian Sea (NW Mediterranean) influenced by anthropogenic pressure

2007 ◽  
Vol 47 ◽  
pp. 239-251 ◽  
Author(s):  
C Misic ◽  
Harriague Anabella Covazzi
Keyword(s):  
Enzymatic Activity ◽  
Sandy Beach ◽  
Anthropogenic Pressure ◽  
Organic Substrates ◽  
Ligurian Sea ◽  
Nw Mediterranean

scholarly journals Responses to Ecopollutants and Pathogenization Risks of Saprotrophic Rhodococcus Species

Pathogens ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 974
Author(s):  
Irina B. Ivshina ◽  
Maria S. Kuyukina ◽  
Anastasiia V. Krivoruchko ◽  
Elena A. Tyumina
Keyword(s):  
Survival Strategies ◽  
Complex Life Cycle ◽  
Anthropogenic Pressure ◽  
Resting Cells ◽  
Organic Substrates ◽  
Negative Effects ◽  
Anthropogenic Pollutants ◽  
Rhodococcus Species ◽  
Wide Range ◽  
Rigid Cell Wall

Under conditions of increasing environmental pollution, true saprophytes are capable of changing their survival strategies and demonstrating certain pathogenicity factors. Actinobacteria of the genus Rhodococcus, typical soil and aquatic biotope inhabitants, are characterized by high ecological plasticity and a wide range of oxidized organic substrates, including hydrocarbons and their derivatives. Their cell adaptations, such as the ability of adhering and colonizing surfaces, a complex life cycle, formation of resting cells and capsule-like structures, diauxotrophy, and a rigid cell wall, developed against the negative effects of anthropogenic pollutants are discussed and the risks of possible pathogenization of free-living saprotrophic Rhodococcus species are proposed. Due to universal adaptation features, Rhodococcus species are among the candidates, if further anthropogenic pressure increases, to move into the group of potentially pathogenic organisms with “unprofessional” parasitism, and to join an expanding list of infectious agents as facultative or occasional parasites.

Planktonic prokaryote and protist communities in a submarine canyon system in the Ligurian Sea (NW Mediterranean)

2018 ◽  
Vol 168 ◽  
pp. 210-221 ◽  
Author(s):  
Mauro Celussi ◽  
Grazia Marina Quero ◽  
Luca Zoccarato ◽  
Annalisa Franzo ◽  
Cinzia Corinaldesi ◽  
...  
Keyword(s):  
Submarine Canyon ◽  
Ligurian Sea ◽  
Nw Mediterranean

Drones as tools for monitoring beach topography changes in the Ligurian Sea (NW Mediterranean)

2016 ◽  
Vol 36 (2) ◽  
pp. 151-163 ◽  
Author(s):  
Elisa Casella ◽  
Alessio Rovere ◽  
Andrea Pedroncini ◽  
Colin P. Stark ◽  
Marco Casella ◽  
...  
Keyword(s):  
Ligurian Sea ◽  
Nw Mediterranean

scholarly journals Importance of the variability of hydrographic preconditioning for deep convection in the Gulf of Lion, NW Mediterranean

Ocean Science ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 573-586 ◽  
Author(s):  
L. Grignon ◽  
D. A. Smeed ◽  
H. L. Bryden ◽  
K. Schroeder
Keyword(s):  
Interannual Variability ◽  
Deep Convection ◽  
Mixed Layer Depth ◽  
Surface Fluxes ◽  
Ligurian Sea ◽  
Intermediate Layers ◽  
Gulf Of Lion ◽  
Nw Mediterranean ◽  
Convective Mixed Layer ◽  
Correlation Tests

Abstract. We study the variability of hydrographic preconditioning defined as the heat and salt contents in the Ligurian Sea before convection. The stratification is found to reach a maximum in the intermediate layer in December, whose causes and consequences for the interannual variability of convection are investigated. Further study of the interannual variability and correlation tests between the properties of the deep water formed and the winter surface fluxes support the description of convection as a process that transfers the heat and salt contents from the top and intermediate layers to the deep layer. A proxy for the rate of transfer is given by the final convective mixed layer depth, that is shown to depend equally on the surface fluxes and on the preconditioning. In particular, it is found that deep convection in winter 2004–2005 would have happened even with normal winter conditions, due to low pre-winter stratification.

scholarly journals Importance of the variability of hydrographic preconditioning for deep convection in the Gulf of Lion, NW Mediterranean

2010 ◽  
Vol 7 (1) ◽  
pp. 51-90
Author(s):  
L. Grignon ◽  
D. A. Smeed ◽  
H. L. Bryden ◽  
K. Schroeder
Keyword(s):  
Interannual Variability ◽  
Deep Convection ◽  
Mixed Layer Depth ◽  
Surface Fluxes ◽  
Ligurian Sea ◽  
Intermediate Layers ◽  
Gulf Of Lion ◽  
Nw Mediterranean ◽  
Convective Mixed Layer ◽  
Correlation Tests

Abstract. We study the variability of hydrographic preconditioning defined as the heat and salt contents in the Ligurian Sea before convection. The stratification is found to reach a maximum in the intermediate layer in December, whose causes and consequences for the interannual variability of convection are investigated. Further study of the interannual variability and correlation tests between the properties of the deep water formed and the winter surface fluxes support the description of convection as a process that transfers the heat and salt contents from the top and intermediate layers to the deep layer. A proxy for the rate of transfer is given by the final convective mixed layer depth, that is shown to depend equally on the surface fluxes and on the preconditioning. In particular, it was found that deep convection in winter 2004–2005 would have happened even with normal winter conditions, due to low pre-winter stratification.

scholarly journals Midwater tunicates: are they related to the permanent front of the Ligurian Sea (NW Mediterranean)?

1991 ◽  
Vol 74 ◽  
pp. 195-204 ◽  
Author(s):  
G Gorsky ◽  
N Lins da Silva ◽  
S Dallot ◽  
Ph Laval ◽  
JC Braconnot ◽  
...  
Keyword(s):  
Ligurian Sea ◽  
Nw Mediterranean
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