Prevailing influence of the vertical shift structure in a certain temporal interval of diffusion leads to the quadratic dependence of dye spots dispersion on the time course. They are compared with oceanographic parameters, which characteris heterogenecity of isopiknic surface relief. It changed depending on the season. The features of nitrate, nitrite and phosphate distribution in the upwelling coastal region at Cape Blanc during the decrease of its activities were described. The most favourable hydrochemical conditions for photosynthesis are at the boundary of frontal zone of sloping upwelling.
Nutrient contents decrease more than twice in the secondary upwelling.
Alga thermoproduction in darkness period has been shown to decrease with various rates. Within the time of experiment from 6 to 20 hours Q10 increases from 3.5 to 15.5. Possible reasons causing such phenomenon are considered. The daily rates of the oxygen consumption and the ammonia excretion in the unmatured Black sea mussels Mytilus galloprovincialis were investigated. The respiration rates were maximum in the darkness, the excretion rates were maximum in the light.