ABSTRACT

40The impact of global warming on aquatic biodiversity is undeniable nowadays. This study emphasized on the effect of temperature to the life performance of tropical cladoceran, Ceriodaphnia cornuta. The life performance including longevity, age at first reproduction (AFR), egg development time (EDT), total egg clutch, total number of eggs, and total number of offspring were assessed at selected temperatures (22°C, 26°C, and 30°C). Results showed that the longevity was inversely proportional to an increase in temperature. Meanwhile, AFR and EDT developed faster as the temperature kept increasing. However, the total number of egg clutch, total number of eggs, and total number of offspring showed a unimodal pattern with the peak for reproductive performance at 26°C. Conclusively, temperature has a significant effect on the life performance of C. cornuta and this finding contributes to our understanding on consequences of global warming toward aquatic biodiversity.