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Abstract

The conference was held on 9–14 September, 2019 in Sevastopol. Ten reports of the plenary session covered a wide range of fundamental problems – from the specifics of morphofunctional adaptations to a parasitic lifestyle, to the taxonomic diversity and phylogenetics of parasites. Conference scientific program included oral and poster presentations in the areas of modern environmental and evolutionary problems of theoretical and marine parasitology; biodiversity, life cycles, population biology of parasites of marine organisms, relationships in parasite – host systems; molecular markers in taxonomy, phylogeny and parasite ecology; parasitism morphological aspects; use of parasites to assess the aquatic ecosystems state and as biological labels in the study of various aspects of the host ecology; applied aspects of marine parasitology.