ASP, DSP, NSP AND PSP MONITORING IN MUCILAGINOUS AGGREGATES AND IN MUSSELS IN A COASTAL AREA OF THE NORTHERN ADRIATIC SEA FACING EMILIA-ROMAGNA IN 1988, 1989 AND 1991

In this study, monitoring of marine biotoxins in ''mucilaginous aggreg ates'' and in mussels from coastal area of Emilia Romagna (Northern Ad riatic Sea) in June-August 1988, 1989 and 1998, are reported. Both ''m ucilaginous aggregates'' and mussels were analysed for NSP and PSP in 1988, and ASP, DSP, NSP, PSP in 1989, 1991. Concerning ''mucilaginous aggregate'' any presence of biotoxins was never detected. In the musse ls it was possible to exclude the presence of PSP, ASP and NSP, but ve ry high levels of DSP were shown in all the considered periods, in rel ation to the presence in the sea water of cells of the Dinophysis genu s.