To understand how small organisms may contribute to ocean mixing, Dr. Kakani Katija and colleagues analyze the wake of the jellyfish Aurelia labiata with a device they call SCUVA. Particles in the water are measured (A) and used to create a velocity field with vectors indicating direction and magnitude (B). Image © Kakani Katija. (via I Heart Copepods. You should, too. | Symbiartic, Scientific American Blog Network)
