RÉSUMÉ

There were studied peculiarities of distribution of some aquatic organisms in a fouling community forming on artificial substrate in marine environment. The components of this cenosis were Mytilus galloprovincialis, Mytilaster lineatus, Balanus improvisus, and the alga Ceramium rubrum. The character of distribution of settling larvae and algal spores was simulated with aid of grains of sand. It is concluded from analyzing the scattering indices and interspecies correlation characteristics, that distribution patterns of the conditioner species (balanus in that experiment) and dependable species are determined mainly by a sequence of settling on a substrate; distribution of spores is influenced also by hydraulic factors of environment. It is possible that conditioners may be represented by several species, in particular outstripping the other community components by the growth rate.