Fig. 1: Dimethyl sulfide (DMS) concentration in seawater (DMSaq) and air (DMSg) along with concurrent acoustic measurements of zooplankton biomass (Nautical Area Scattering Coefficient (NASC)) off the coast of Cape Cod, MA, USA.
From: Natural dimethyl sulfide gradients would lead marine predators to higher prey biomass

The colour and size of the dots indicate the value of the measurement. Black lines represent the vessel track when no data were collected or where the measured value was zero. a DMS concentration in seawater (DMSaq). b DMS concentration in air (DMSg). c Zooplankton biomass (NASC).