Interannual Population Dynamics of the Ctenophore Beroe ovata Bruguière, 1789 at the Outer Shelf of Sevastopol Bay of the Black Sea
Journal: Russian Journal of Biological Invasions
Year: 2023

On the basis of the results of cruises and long-term monitoring at the outer shelf of Sevastopol Bay, the interannual dynamics of the state of the population of the alien ctenophore Beroe ovata in the Black Sea for 2000–2021 was analyzed. It was established that, in recent years, the ctenophore was found in plankton earlier than usual, the period of its active pelagic life increased to 7–8 months, and the body length in juveniles decreased from 40 to 20–25 mm. Three seasonal periods are distingu