Extensive blooms of gelatinous macrozooplankton species (“Jellyfish”) have appeared in recent decades
in Northern Adriatic (NA) waters. Anecdotal evidence suggests that these blooms have had a considerable
impact on fishing operations, as this region is one of the most heavily exploited Mediterranean fishing
grounds. In order to gain a better understanding of the possible economic losses for the Italian NA fishing
industry due to jellyfish impacts, we conducted a survey of fishermen in the city of Chioggia, which
is the main fishing port for the NA basin.