Does a ballast effect occur in the surface ocean?

Sanders, Richard; Morris, Paul J.; Poulton, Alex J.; Stinchcombe, Mark C.; Charalampopoulou, Anastasia; Lucas, Mike I.; Thomalla, Sandy J. 2010 Does a ballast effect occur in the surface ocean? Geophysical Research Letters, 37 (8). L08602. https://doi.org/10.1029/2010GL042574