Il fitoplancton come elemento di qualità biologica ai fini dell'implementazione della Water Framework Directive (WFD, CE 2000/60)

In order to implement the WFD (EC 2000/60) a multimetric phytoplankton index was set up for transitional waters. Hulburt dominance index, bloom frequency, Menhinick diversity index and chlorophyll a concentration were tested against main environmental parameters to verify the metric responses to eutrophication. The achieved results allow to consider the proposed formulation reliable.