Monterey kelp forest regrowth continues in spite of hordes of purple urchins chewing on holdfasts – even with volunteer divers smashing urchins one at a time with pointy hammers and praying for the return of sea stars recovered from wasting disease to devour the urchins. One ironic twist – purple urchins are now losing their spines to their own wasting disease and might make cemeteries of the urchin barrens.
This video by Cariolis Films discusses the research underway at Lovers Point on kelp restoration near Hopkins Marine Station. Please click through to Vimeo for a better viewing and the 2020 follow up information in the text below it there. This was filmed in 2019. [Shared from Johanna Van de Woestijne to Hopkins Marine Station of Stanford University]