Study of the Effect of Algal Food and Light Intensity on the Reproduction of Daphnia Magna

International Journal of Agriculture & Environmental Science

© 2022 by SSRG - IJAES Journal

Volume 9 Issue 1

Year of Publication : 2022

Authors : Mai Moeen Akel, Adib Hasan Zeini

10.14445/23942568/IJAES-V9I1P104

How to Cite?

Mai Moeen Akel, Adib Hasan Zeini, "Study of the Effect of Algal Food and Light Intensity on the Reproduction of Daphnia Magna," SSRG International Journal of Agriculture & Environmental Science, vol. 9,  no. 1, pp. 19-22, 2022. Crossref, https://doi.org/10.14445/23942568/IJAES-V9I1P104

Abstract:

The study was carried out on individuals of species Daphnia magna .which is an aim to culture as live food for larval fish and crustaceans in fish farms. The first batch of these Crustaceans was collected from the nearest freshwater bodies of lattakia. The individuals have been adapted to the laboratory conditions to prepare them for a series of Experiments. Then we were determined the effects of food algae (Scenedesmus) and light intensity (800 lux) in some reproductive characteristics as the time of sexual maturity, number of broods, number of individuals in each brood; the total number of individuals during the female life rate. With fixing other ecological factors. The results showed that the most suitable food algal for D.magna is Scenedesmus, which can be adopted as a suitable culture medium during experiments to culture D. magna in the future. And the optimal light intensity for the reproduction of daphnia was 800 lux; by comparing the effect of each of the factors studied, the lighting factor had the greatest impact on the reproductive characteristics of the studied type.

Keywords:

Crustacea, Cladocera, Daphnia magna, Lighting, Algal food.

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