Our **data** showed a moderate decrease in the mean biomass productivity with the different drip-irrigated configurations (e.g. range: 5-18 g m -2 d -1 ), although the highest productivity (18 g m -2 d -1 ), was essentially the same as the lower range of the submerged controls, namely 20 g m -2 d -1 . However, we did measure an increase in total protein content for the drip-irrigated cohorts over that of the fully-submerged controls, indicating that the drip-irrigated seaweeds received sufficient water emersion and nutrient uptake to biosynthesize inorganic nutrients to organic cellular products.