Abstract
SummaryLaboratory observations on the egg production, development and growth in the Cladoceran Moina micrura show that this species has a life span of 13 days during which it produces 6M 8 eggs. Two preadult and eleven adult instars were recorded at a temperature range of 28°–30°C. The rate of egg production calculated on a cumulative basis was found to be lower (a = 1.0368) than that of other tropical species. The embryonic stages in Moina micrura closely resembled other cladoceran species, although with a short development period of 24 h. The total life span, growth rate and the total number of eggs produced in Moina micrura have been compared with those of allied tropical, temperate and arctic daphnids. The significance of this relationship to secondary productivity in tropical ecosystems has been discussed.
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