Seaweed Solutions
27 April 2021
Researchers say cultivated seaweed can soak up excess nutrients plaguing human health and marine life.
It’s easy to think that more nutrients — the stuff life needs to grow and thrive — would foster more vibrant ecosystems. Yet nutrient pollution has in fact wrought havoc on marine systems, contributing to harmful algae blooms, worse water quality and oxygen-poor dead zones.
A team of researchers from UC Santa Barbara has proposed a novel strategy for reducing large amounts of nutrients — specifically nitrogen and phosphorous — after they have already been released into the environment. In a study appearing in the journal Marine Policy(link is external), the authors contend that seaweed’s incredible ability to draw nutrients from the water could provide an efficient and cost-effective solution. Looking at the U.S. Gulf of Mexico, the team identified over 63,000 square kilometers suitable for seaweed aquaculture.