Temperature (16, 20, 24 and 28 °C) affected significantly average lifespan (LS), life expectancy at hatching (e₀), generation time (T), net reproductive rate (R₀), intrinsic rate of population increase (r_m) and population growth rate of A. brightwelli, prey (B. angularis) density (10, 20, 30 and 40 ind. ml^-1) affected the values of T, R₀, r_m and r, and their interaction affected the values of T and r. In natural water bodies, the dynamics patterns of A. brightwelli population, and then the community structure and the functioning of ecosystems will be changed by climate changes.