DOI: 10.38006/00187-838-4.2024.110.111
Ю. А. Зуев - Санкт-Петербургский филиал ВНИРО, Санкт-Петербург
С. М. Русяев - Магаданский филиал ВНИРО, Магадан
The object of the study was the greenling. The spatial distribution and structure of the spawning grounds of this species were studied by divers, with simultaneous video recording and analysis of behavior during the protection of offspring. The spawning ground of the greenling near the island of Nedorazumenie was revealed only on the sublittoral rocky plateau, in the zone of the least wind and wave effects, in the band of macrophytes. Data on the distribution of males depending on the depth, nature of the substrate and communities of macrophytes were obtained. It is shown that the mechanism limiting the density of fish aggregations is the territoriality of male greenling aggressively guarding spawning areas. The calculation of the spawning capacity is proposed, taking into account its heterogeneity. The possibility of modeling the spawning capacity using the Lotka-Volterra competitive equation is considered.