Satiation gives krill that sinking feeling

The daily vertical migration of pelagic animals to and from the upper ocean layers is the most widespread and coordinated movement of biomass on Earth. The behaviour is a major pathway for carbon to reach the ocean's interior as organisms eat at the surface and release their waste at depth. Estimates of carbon sequestration via this ‘active flux’ of pelagic animals assume that the behaviour is performed just once every 24 hours [1Longhurst A.R....