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Studies on mating spawning and development of egg in macrobrachium nobilii


, : Studies on mating spawning and development of egg in macrobrachium nobilii. Proceedings of the Indian Academy of Sciences Animal Sciences 94(4): 421-426

The chronomorphological events during the development of the egg of the freshwater caridean prawn, Macrobrachium nobilii were followed from spawning to hatching. The female is receptive only for a 30-minute period after the premating moult. After mating, spawning ensued within 9 .+-. 3 hours and was completed within 15-20 seconds. Unmated females also spawned but the eggs did not survive. The rate of egg development increased 2 .cntdot. 5x for a temperature rise of 10.degree. C. Hatching was synchronised under in vitro conditions indicating uniform development of a clutch.

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