Experiment I: Effect of temperature and salinity on naupliar duration (Fig. 1b)

Experiment I - nauplius to cypris development
Twenty nauplii were incubated in 10 ml filtered (0.2 µm) seawater in each well of the six-well plates under continuous light, and fed daily with a 1:1 mixture of the unicellular algae, C. calcitrans and S. marinoi, at a concentration of 2 × 105 cells ml-1 21. Every second day, the water in each well was carefully replaced by filtered seawater at the respective temperature and salinity, and fresh food was added. The number of surviving nauplii, cyprids and settled juveniles in each experimental well were observed daily for 21 days using a dissecting microscope (Olympus SZX12). Preliminary trials confirmed that the short handling time of each six-well plate during observations did not cause any significant change in water temperature in any of the treatments. […]