masago are the smaller eggs sushi bars use to decorate rolls.
they are orange. tobiko can come in various colors. i've seen green, red, black.
Ikura (salmon roe) is one of my favorite pieces of sushi.
i like it better than caviar.
then again, i'm pretty biased since in a sushi chef
my aunt works at the airport in the place where they get all the food ready. she used to take little jars of caviar home all the time (they serve it in first class). its definately an acquired taste. it took me a while to get used to.