Kaneohe Bay has suffered from invasive seaweeds since the 1970s. Two species in particular — Kappaphycus and Eucheuma, often used to make the food-thickening agent carrageenan — have grown so well in the bay that they smothered its patch reefs, killing corals.  That is until the state decided a decade ago to fight back by deploying … Continue reading 1 Million Sea Urchins Have Now Been Deployed To Eat Kaneohe’s Invasive Seaweeds