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Variation in egg buoyancy of Baltic cod Gadus morhua and its implications for egg survival in prevailing conditions in the Baltic Sea
1994
Marine Ecology Progress Series
In the Baltic Sea successful spawning of cod is restricted to the deep basins, and egg buoyancy is regarded as a major factor that allows eggs to avoid the stressful oxygen conditions that often prevail in the deep layers. In this study eggs of 3 to 5 yr old spawners (the basis of the spawning stock of Baltic cod Gadus morhua L. nowadays) maintained neutral buoyancy at a salinity of 14.5 i 1.2 ppt, with great variation among eggs from different females. Egg buoyancy was significantly correlated
doi:10.3354/meps110067
fatcat:gq725irafzhxfmu7xa7do4oxim