The distribution of developmental stages within the population
was also affected by temperature (Fig. 3). At lower temperatures, the
population had a larger number of nauplii and copepodites than at
higher temperatures up to 32 °C; the 34 °C treatment performed
poorly. The number of adults in the population reached a maximum at
30 °C before declining sharply at 32 and 34 °C. Despite the overall
decline in numbers, the 32 °C treatment was comprised of more
advanced staged individuals than nauplii. The presence of gravid
females increased with increasing temperatures and peaked at 32 °C.
At 34 °C, the population declined greatly in number, and the
distribution of life stages was no longer relevant.