divers battle to save abalone — with a giant sea-urchin vacuum

https://www.sfchronicle.com/food/article/Northern-California-divers-try-to-save-abalone-12809728.php

Recreational abalone diving normally brings an estimated $44 million annually in tourism into North Coast towns,



Wonder what it will be this year.

Recreational abalone diving normally brings an estimated $44 million annually in tourism into North Coast towns,



Wonder what it will be this year.

Beer

Sounds like they just have to bring back the urchins predator  ,the sea star