Is caviar basically fish eggs?
Basically, both caviar and roe are fish eggs, but caviar is a particular kind of roe from the sturgeon family that has been cured.
Is caviar only from sturgeon?
Types of Fish
Roe refers to all fish eggs, including those from salmon, trout, flying fish and paddlefish. However, only roe from a sturgeon is true caviar. There are several types of sturgeon used to make caviar, such as: Beluga.
Why is caviar only from sturgeon?
Since sturgeons are more rare and precious than most other species, their eggs are considered far more valuable. Thus, with the higher prices and harsher regulation of traditional caviar, other salted fish roes and caviar substitutes have become abundant in the marketplace due to their affordable nature.