Afanasyev D.F., Abdullin SH.R.
Biologiya morya 2025; 51(3): 119–131
The winter supra- and pseudolittoral macroalgal communities of the northeastern part of the Russian Black Sea coast have been described, for the first time, using a floristic classification. A total of three associations, two communities, one alliance, one order, and one class have been identified. The associations and communities have been described for the first time. Diagnostic species for them are provided. The identified phytoenoses are compared with those previously described from the Black Sea based on the dominant classification method. These are also compared with similar communities in the Mediterranean Sea and other European seas. It is shown that the winter vegetation on hard substrates in the supra- and pseudolittoral zones of the northeastern Black Sea consists mainly of simple mono- or oligospecific communities, predominantly comprised of cosmopolitan and subcosmopolitan species, along with a few species of Atlantic and Arctic-boreal origin.