For sea urchin divers who harvest them as premium shellfish, most often served in sushi restaurants as uni, this could look like a fortune. Courtesy of Aaron Huang But instead of dollar signs, divers ...

A Norwegian marine project combining sea urchin harvesting with kelp forest restoration has received United Nations endorsement ...

almost 85 tons of sea urchin shells in the town are discarded locally every year. Recycling the shells has proven difficult. Fishermen are too busy to manage them during the peak harvesting period ...

Considered a delicacy in several parts of the world, sea urchin, or uni in Japanese, is prized for its unique flavor. But the cost of the gonads — the orange tongues found inside an urchin ...

Kelp forests decimated by sea urchins are being replanted in Port Phillip Bay in an attempt to rebuild the ecosystem.