Glyceryl ether metabolism: regulation of buoyancy in dogfish Squalus acanthias.

The ratios of concentrations of diacyl glyceryl ethers to triglycerides are increased significantly in the livers of weighted dogfish (Squalus acanthias) in comparison to an unweighted control group. The hydrostatic properties of the liver may be regulated through the metabolism of these two classes of lipids which have different specific gravities.