One of several thousand dead, small rockfish found floating belly-up on the surface. This is usually caused by bottom trawlers throwing their by-catch over the side. Rockfish float because their swim bladders are expanded full of air from the pressure differential between the bottom of the ocean and the surface.
A close up look at a drifting giant kelp plant that continues to actively grow as indicated by several apical fronds. The rapid growth tips of the stipes are an array of fronds that show a gradient in bladder (pneumatocyst) sizes as the fronds each grow larger in turn