Fig 1. Opportunities for a global marine microalgae aquaculture industry.

(A) Global map of onshore microalgae biomass production potential based on solar insolation data and an algal growth model, as modified from [2]. Solar insolation limits higher productivity potential to lower latitudes. (B) Global map of onshore microalgae protein production potential constrained by various environmental and financial considerations, as modified from [2]. Inexpensive access to seawater limits marine microalgae aquaculture facilities to a relatively narrow band along coastlines. (C) Illustration of marine microalgae aquaculture facilities located along a coastal desert plain, modified from [5].