Journal of the Marine Biological Association of India

Effect of temperature on polar body formation in the edible oyster,Crassostrea madrasensis

Volume 45 Issue 2

Jyothi V. Mallia and P. C. Thomas

Abstract

Freshly fertilized eggs of edible oyster Crassostrea madrasensis were maintained at temperatures of 23,29 and 31°C and the biological developments were viewed under a light microscope to monitor the kinetics of polar body extrusion at these temperatures. Time of release of fifty percent of polar bodies at 23"C, 28°C and 31°C were 18,16 and 15 minutes post fertilization respectively, indicating the temperature dependence of this event.

 

Date : 30-12-2003