Removing Roe from Beluga Sturgeon (IMAGE) The Institute for Ocean Conservation Science Caption Black caviar, the unfertilized roe (eggs) of the beluga sturgeon, is the most valuable of all caviar. Credit Shannon Crownover Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.