For everyone who don't know or ever eat fish milt :
Milt is actually Fish's Testicle / genital part, not sperm, translator needs to fix that. As a person who live a bit near the sea, I know the taste of milt. Taste like cow brain actually. TBH, not all kind of fish has edible / delicious innards including milt. Some species has delicious innards like Cod, Goldfish, Carp. Some are bitter. A few from deep seawater are poisonous like Fugu fish.
Good chefs can make fish innards become delicious. So, it depends on seasoning and serving