Electrochemical sensors for phytoplankton and ocean health
Abstract
Electrochemistry is potentially at the forefront of offering a scalable, low-powered sensing solution in autonomous monitoring applications. In the past couple of decades, thousands of autonomous profiling floats have been deployed in the open ocean to measure and correlate ocean acidification, stratification and rise in temperature with climate change. It remains enigmatic and a challenge to evidence how these changes are impacting the foundation of the oceanic food chain, marine phytoplankton, and in which direction. In this review, we describe recent electrochemistry breakthroughs allowing the composition of phytoplankton communities to be monitored, including fluoro-electrochemical species identification and quantifying the amount of biomineralised CaCO3.
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