Times of India: Can we save kelp forests by eating sea urchins?
Here on the northern California coast, researchers are using drones to map and monitor some of its last remaining kelp forests. In less than a decade, this region has lost more than 90 percent of its kelp forests, decimating marine species that live in these important ecosystems. The state was forced to close its 44-million dollar red abalone fishery, hurting fishermen and tourism. What's behind the kelp crisis? Scientists say an explosion of purple sea urchins have devoured bull kelp at an unprecedented rate. Urchin populations spiked after a deadly disease wiped out sea stars, the urchins' main predator.