Abstract

1. The effect of temperature on growth, longevity and egg production in Chirocephalus diaphanus reared in the laboratory is described. 2. The maximum growth rate occurred at 25°C and the growth rate decreased with decreasing temperature. 3. Sexual maturity occurred earliest at 25°C and occurred later with decreasing temperature. 4. The greatest longevity of a culture occurred at 10°C, the least at 25°C. The greatest final length was attained in animals kept at 10°C, the smallest final length occurred in animals kept at 25°C. 5. Egg production was highest at 10°C and lowest at 5°C, whilst the greatest total number of eggs produced per female was 178 at 10°C. 6. The results of this study are compared with those previously published for other species of Anostraca.

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