Variabilità spazio-temporale della struttura del fitoplancton nel Golfo dell'Asinara (Sardegna) = Spatial and temporal variability of phytoplankton structure in the Asinara Gulf (Sardinia)

The spatio-temporal variability of phytoplankton and some environmental parameters in the gulf of Asinara are examined (05/97-04/98). Along the whole coastal area, stations at 500 and 3000 mfrom coast across 6 transects are considered. Results point out some variations in phytoplankton composition and dynamics. Multidimensional Scaling ordinations and Bray-Curtis cluster analuses identified two major zones at 500 m from coast, one for the site of Lu Bagnu and one for the other five sites; at each stations, a great similarity was found in its respactive share. On the contrary, at 3000 m from coast, no cluster was identified.