Fig. 4. Calanus helgolandicus females fed blank liposomes at a lipid concentration of 6.3 µg ml^–1 (Lipo Cal) and liposomes encapsulating decadienal at 3.6 ng ml^–1 (LipoDD Cal) supplied with Prorocentrum minimum at a concentration of 8000 cells ml^–1, and the control diet of P. minimum alone (Pro) at the same cell concentration. (A) Daily egg production rates per female; (B) percentage egg hatching success; (C) faecal pellet production rates per female; (D) percentage female survival. Values are means ± s.e.m. (N=10).