“…High ecological plasticity of the species and a favorable complex of environmental factors allowed R. venosa to colonize the Black Sea coastal waters fast enough and continue resettlement through the Mediterranean basin in the various areas of the eastern and western Atlantic (Chuhchin, 1984, Mann et al, 2004, 2006, Lanfrankoni et al, 2009, Bondarev, 2010, Bondarev, 2014. The need for adaptation to different environmental conditions, as well as significant changes in the ecosystem of the Black Sea have occurred since the time of invasion (Bondarev, 2014) led to a diverse morphogenesis (Bondarev, 2010, Bondarev, 2013.…”