NITROGEN AND PHOTOSYNTHETIC FUNCTION OF HERMATYPIC CORALS. OXYGEN EXCHANGE OF STYLOPHORA PISTILLATA CORAL UNDER ARTIFICIAL EFFDING

摘要

The change of Stylophora pistillata coral photosynthetic function (oxygen exchange and biomass of symbionts) under starvation and food enrichement was enrichment was studied to understand the role of heterotrophy in nitrogen supplements of zooxanthellae. The starvation caused the decrease of frequency of zooxanthellae cells division in 7-10 times. The number of degraded algae cells increased in same proportin and, as a result, the density of zooxanthellae in corals decreased about two times during one-two weeks.