摘要：The paper describes the modelling ofegg production in Acartia spp. under changing environmental conditions in the southern Baltic Sea (Gdańsk Deep). The hypothesis (Sekiguchi et al. 1980) that the food-saturated rate of egg matter production is equivalent to specific growth rate ofcopepods is applied. The average number ofeggs produced per day by one Acartia female is obtained as a function ofgrowth rate, i.e. by multiplying exp gN3 − 1 from the growth rate of the nauplius stage equation by Wf emale/Wegg. The copepod model, reduced to a zerodimensional population model calibrated for Acartia spp. under the environmental conditions typical ofthe southern Baltic Sea, was used to determine the effects oftemperature and food concentration on the growth rate ofeach ofthe model stages (see Part 1 – Dzierzbicka-Głowacka et al. 2009 – this issue). In this part, egg production as a function of the above parameters is evaluated. The rate of reproduction during the seasons in the upper layer ofthe Gdańsk Deep is also determined.
