Fig 3.

Particulate dimethylsulfoniopropionate (DMSP) concentrations as a function of time (day) (A, D) in the predator (K. veneficum alone) and (B, E) prey (A. carterae and Teleaulax sp. alone) controls, and in treatments involving incubation of (C) K. veneficum with A. carterae (Kv–Ac) and (F) K. veneficum with Teleaulax sp. (Kv–Te). Different symbols represent different pseudo-replicate experiments, and open and filled symbols indicate the control and experimental bottles respectively. Error bars for particulate DMSP (not clearly shown, as they are smaller than the symbols) indicate the standard deviations from the mean of replicate experiments.