CASTELLANO , Michela

Organic matter (OM) features, degradation and remineralisation were studied in the seawater of a natural coastal site (Marine Protected Area of Portofino) and at an urbanised coastal site (Quarto, Genoa city) of the Ligurian Sea. The accumulation of low trophic value OM and the persistence of phytoplanktonic biomass throughout the year were...

In Terra Nova Bay, a coastal area of the Ross Sea (Antarctica), the dissolved organic matter (DOM) (proteinlike and humiclike) in the seawater from two sampling stations was studied using the synchronous fluorescence technique and the evaluation of the dissolved proteins during the ice-free time lag (approximately four weeks). Moreover, a...

The variations in the expression of two hydrolytic ectoenzymes (leucine aminopeptidase – LA – and β glucosidase — BG) were studied in the southern Tyrrhenian Sea during spring 2004. This area is characterised by a complex morphology and hydrodynamism, which generate significant differences between different sectors, particularly in the 0–100 m...

Since the 17th century, the Tonnarella of Camogli, a small tuna trap, has been used to catch pelagic fish along the western coast of the Portofino Promontory (Ligurian Sea, Northwestern Mediterranean). The availability of long‐term datasets on fish yields (1950–1974 and 1996–2011), with information related to the seawater temperatures and the...

We studied the role of oval faecal pellets in the carbon-cycle dynamics of the Antarctic coastal area in a laboratory experiment on pellet degradation over time. We observed a rapid increase in the bacterial biomass until 56 h (from 14.73 to 91.09 lgC/l), but a drop to 25.83 lgC/l at the end of the experiment. Dissolved proteins decreased...

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The activities of two hydrolytic enzymes (leucine aminopeptidase and b glucosidase), belonging to the particle-bound enzymatic fraction, were measured in open-sea surface waters. Samples were collected along a transect crossing the Indian Ocean during the early NW monsoon period (November and December 2001). The latitudinal pattern of the...

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The northern Victoria Land coastal marine environment was investigated during the late summer 2004, within the framework of the Latitudinal Gradient Project (LGP), to describe the physical, chemical and biological patterns of the water column and their relationship with the pelagic and benthic compartments, and to determine to what extent they...

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The effect of a shallow seamount in the Tyrrhenian sea on the surrounding ecosystem was studied during spring 2009, taking account of the variables related to organic-matter (OM) production and turnover. A clear "seamount effect" could not be found, due to the complex hydrodynamic features of the area. Nevertheless, the accumulation of...

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The mobilisation of sediments and related contaminants connected to dredging activities is one of the most critical issues to the environmental risk and exposure assessment of a dredging project. The aimof this paperwas an investigation of the mobilisation of polycyclic aromatic hydrocarbons (PAHs) due to the dredging of the Port of Genoa...

The tropical genus Ostreopsis has been recorded along Italian coasts of the Mediterranean Sea since the '90s, but large bloom events have been reported only in recent years. In order to describe O. ovata bloom dynamics and provide a better understanding of environmental variables involved in triggering blooms, we collected a time series of...