Preliminary biological tests with crustaceans to evaluate the Ostreopsis ovata (Dinophyceae) toxicity.

Ostreopsis ovata toxicity has been estimated through acute bioassays by using two crustaceans nauplii Artemia franciscana (Kellog, 1906) and Tigriopus fulvus (Fisher, 1860). The LC50 values of both specimens showed a high sensitivity towards O. ovata. Our results evidenced that A. franciscana showed a higher sensitivity than T. fulvus.