TY - SER AU - Kjesbu,O.S. AU - Kryvi,H. AU - Sundby,S. AU - Solemdal,P. TI - Buoyancy variations in eggs of Atlantic cod - Gadus morhua L. - in relation to chorion thickness and egg size: theory and observations KW - Eggs KW - Chorion KW - Vertical Distribution N1 - Kjesbu, O. S.-Institute of Marine Research, P.O. Box 1870 Nodnes, N-5024 Bergen, Norway ER -