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| 1 | Experimental researches of stability to asphyxia at preimaginal stages of malarial mosquito Anopheles atroparvus are presented. In experiments of larvae and pupae of mosquitoes were in vessels with water without access to atmospheric air. The stability depends on concentration of the dissolved oxygen in water in different temperature conditions. At alternative concentration of oxygen in water two opposite tendencies of speed of destruction of preimaginal stages of development are fixed. At concentration of oxygen of 0 mg/l in three set modes of temperatures (15 °С; 23 °С; 30 °С) stability of individuals to an asphyxia from I age to pupae is increased. In the water sated with oxygen at initial concentration of oxygen of 7–8 mg/l, on the contrary – larvae of younger age differed the raised viability in comparison with individuals of advanced ages. Keywords: кровососущие комары, преимагинальные стадии, регуляция численности популяции, асфиксия | 1013 | ||||