FACHBEGRIFF: Beschreibubng des Glossars der Fachbegriffe.
yolk sac
A sac containing yolk which provides nourishment for developing embryo and larva of egg-bearing fish.
FACHBEGRIFF: Beschreibubng des Glossars der Fachbegriffe.
A sac containing yolk which provides nourishment for developing embryo and larva of egg-bearing fish.