Der Hering legt pro Jahr 'nur' 30.000 Eier. Andere Arten, wie der Katzenhai und der Nagelrochen, legen noch weniger Eier: etwa 140 Stück. ###>Herring produces 'only' 30,000 eggs per year. Other species, such as the lesser spotted dogfish and the thornback ray, lay even fewer eggs, around 140 per year.