Egg specific gravity obtained from days 2, 3 and 4 after fertilization showed no difference between the behaviour groups while there were strong indications of the eggs of frontal cod being lighter than the eggs of coastal cod during the last stages of development.
Eðlisþyngd eggja mæld á degi 2, 3 og 4 eftir frjóvgun sýndi engin merki aðgreiningar milli atferlisgerðanna en vísbendingar fundust um að egg djúpfarsþorsks væru léttari en egg grunnfarsþorsks á seinni stigum þroskunar.