Expansion of gelatinous macrozooplankton in the open Black Sea off Crimea under the weather events of recent years
Journal: Mediterranean Marine Science
Year: 2022

Species composition, abundance, and distribution of gelatinous macroplankton in coastal and deep-sea areas of the Black Sea in November 2017 are discussed. Despite the fact that species composition of gelatinous macroplankton (medusa Aurelia aurita, ctenophores Mnemiopsis leidyi, Pleurobrachia pileus, and Beroe ovata) in 2017 did not differ from that in 2016, structural changes occured. In autumn 2017 A. aurita and B. ovata biomass was higher than in 2016 whereas the inverse difference was obser