476 resultados para Adriatic Sea
Resumo:
In the framework of the Italian project CO2 Monitor, two culture experiments were carried out in vertical closed photobioreactors with Pleurochrysis cf. pseudoroscoffensis Gayral & Fresnel 1983, a coccolithophore isolated from the Gulf of Trieste (North Adriatic Sea). The aim of this study was to investigate the effects induced by pH variations due to CO2 emissions on its growth and morphology. Two experiments were carried out with two different CO2 concentrations (1 and 2%). Growth and cell size in light microscopy, morphology and coccolith size in scanning electron microscopy, particulate nitrogen (PN) and particulate inorganic and organic carbon (PIC and POC) content of the coccolithophore were investigated during the light and dark phases. Dissolved inorganic nutrient (nitrate and phosphate) concentrations and pH of the medium and the presence of heterotrophic prokaryotes (HP) were monitored as well.
Resumo:
The POSEIDON cruise POS298/2 was carried out by the Institute of Oceanography of the University of Hamburg. Members of the University of Venice and the Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste were participating in the cruise. The project was aimed at gaining a deeper knowledge on the water mass transformations occurring in the southern Adriatic and western Ionian Sea. To obtain this result CTD profiles, lADCP profiles and water samples for oxygen and salinity were taken and analysed. The cruise had several objectives: 1. Identifying the routes and characteristics of the fraction of deep water in the Ionian Sea which was generated in the Adriatic Sea. 2. Quantifying the mixing of the deep water generated in the Adriatic Sea with the ambient water masses on its way southward. 3. Estimating the importance of the deep water generated in the Adriatic Sea for the ventilation of the eastern Mediterranean Sea.
