New study uncovers unprecedented declines in iconic kelp forests along Monterey Peninsula

A new study published in PLOS ONE provides novel documentation of kelp forest decline along the west coast of the U.S. and Mexico in response to the 2014–2016 record-breaking marine heatwave, along with evidence of regional recovery. Using Kelpwatch.org, an open-source web tool used to visualize and analyze nearly 40 years of kelp canopy dynamics data derived from satellite imagery, the study uncovers a north-to-south pattern in kelp decline and recovery from the marine heatwave, for both giant kelp and bull kelp canopies.