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#kelp

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"When sea otters were reintroduced along the coastlines of islands in Southern California and British Columbia, researchers saw kelp forests return to areas that were destroyed by sea urchins. But how slow or fast they grew back depended on the location—and until now, scientists didn't understand why".
#seaurchins #otters #kelp #forests

phys.org/news/2025-03-sea-otte

Phys.org · Sea otters help kelp forests recover—but how fast depends on where they areBy University of Colorado at Boulder
This is another public art piece called #stjärnstoff #stardust which comprises several different materials and processes. Not seen here is a large scale black stone called #syenite and a jewelry shaped and high polished red #vånga a red granite from Sweden. The stones were picked as leftovers from other projects and with odd shapes not suitable for anything except art or they crush them to grit. Which I find depressing as those rocks have been dug up and their geological age is between 950-1200 million years. I like to form #sculptures that give a sense of awe to both the materials and of #deeptime, helping us to see what we usually just walk on. The sculpture on those images are the other part and is a work where I involved a care home for young adults with #downssyndrome. As you all know glass is basically sand, that is also geological. The #glasscrystal is hand blown and shaped through water grinding. The aluminium is 100% recycled and the #kelp like frame is directly shaped in wax. I took moulds of Tessan and Martin's hands, also moulded in recycled aluminium. This piece is placed in #lövstalöt #uppsala #sweden and was finished in November 2023. #art #artist #femaleartist #sweden #sculptor #glass #handmade #craft #skills #cosmos

A new project is underway to restore in the -- by removing sea urchins and selling them to restaurants or turning them into agricultural products.

“It’s really been decades in the making,” said Kim Selkoe, executive director of Commercial Fishermen of Santa Barbara,
co-founder of Get Hooked Seafood, and research scientist at UCSB.

“It’s really been the commercial sea urchin diving community that has noticed so much kelp decline out of the Channel Islands.”

Selkoe said that there used to be a vibrant kelp forest on the backside of San Miguel Island,
but starting in the 1980s warmer waters from El Niño storms caused the kelp to die off.
Purple urchins then started taking over and feeding on the remaining kelp.

“We’ve gone from like this rich three-dimensional forest filled with fish and snails and invertebrates and other algae, down to this carpeted urchin where nothing can grow;
and as soon as the little spores land and start to try to grow again, they just mow them down,” Selkoe said.

However, when urchins are removed, kelp is able to grow back fairly easily, according to Selkoe
noozhawk.com/kelp-restoration-

Noozhawk · Kelp Restoration Project to Begin in Santa Barbara this SpringBy Rebecca Caraway, Noozhawk Staff Writer