From blooms to ocean deserts – understanding primary productivity in the ocean

From blooms to ocean deserts – understanding primary productivity in the oceanSunlight is, directly or indirectly, the ultimate energy source for almost all life on Earth. Phytoplankton harvest it to convert inorganic carbon to an organic form and as a result, are responsible for approximately half of the photosynthesis that occurs on our planet. Phytoplankton primary production therefore fuels marine food webs and is a fundamental property of the ocean ecosystem.