The water column hosts phytoplankton communities typical of eutrophic and/or
hypertrophic systems rich in organic matter (e.g. diatoms in spring, cyanobacteria
and chlorophytes in summer and autumn; [81]). Water stagnation favours phytoplankton blooms and chl-a can peak up to 200 mgm
À3 in conjunction with the
minimum river flows (~2 m
3 s
À1 ). The presence of cyanobacteria is a major concern
of the study area due to the potentiality of containing or releasing toxins into the
water when the algae die and decay.
Fig. 3 Three BOMBER-retrieved products obtained from MIVIS data acquired on 12 September
2009 (the shallow waters are masked and printed in black)
Fig. 4 Moving from left to right scatter plots of chl-a vs. CDOM, SPM vs. CDOM and SPM
vs. chl-a (each point is a MIVIS pixel)
70
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