Abstract

Pseudodiaptomus coronatus Williams was reared at 20°C through 4 consecutive generations, in individual beakers containing 70 cc natural water (20–25‰) using Chlamydomonas as food. There were 5 nauplius and 6 copepodite instars. The average generation time was 25 days. Copepodite development was faster in males than in females. The rate of oviposition depended on the presence of males. Females isolated from males after copulation produced up to two viable clutches of eggs.The ability of copepodites to attach to substrata and the relatively high passive sinking speed of adults may contribute to the spatial distribution of estuarine populations.

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