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William Barnacle

@urchinartdesigns.bsky.social

Sometime sailor, diver, biologist, photographer, jeweler, and a beer every couple of weeks... you can call me "Bill".

308 Followers  |  98 Following  |  128 Posts  |  Joined: 29.11.2025  |  1.7853

Latest posts by urchinartdesigns.bsky.social on Bluesky

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1984 (1984) : Michael Radford, George Orwell : Free Download, Borrow, and Streaming : Internet Archive Nineteen Eighty-Four is a 1984 dystopian film written and directed by Michael Radford, based upon George Orwell's novel of the same name.TheΒ the story...

The Internet Archive has a copy of the mid-1950s BBC TV Show/Play "1984" with Peter Cushing as Winston. It's colorized while the B&W original was scarier but it's still good, err double-plus good. The US had "Ozzie & Harriet" on TV while the BBC had Quatermass & 1984 on. archive.org/details/1984...

07.02.2026 01:21 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Plus, sea urchins have more than 2/3s the same genes as we do and purple urchins have been studied for 125 yrs.

06.02.2026 22:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Well, yes and no. When predators keep their population in check, then they're OK, but when their populations spike then they can get out of hand. In places like Palos Verdes they took over after kelp was over-harvested in WW2 & have only recently been beaten back. Over population leads to plagues.

06.02.2026 22:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

funny how the mind works, I remembered the person's last name shortly after sending you that message. Good day.

06.02.2026 22:04 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

A midwater fish called Fangtooth is even more frightening. Even when dead it has a stereotypic response to being touched on it's tail; it either swims away or it turns around and bites like crazy.

But truly the most dangerous thing on or in the oceans goes on two legs.

06.02.2026 18:44 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Did you study biology at UCSB w/Aramand Kuris?

06.02.2026 18:38 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Lytechinus pictus is the white urchin that's climbed on top of some purple urchins. They're all small ones and the white urchin is about an 1" across. I'd find white urchins on sandy/muddy spaces where they dig in & cover themselves with shells like this one. The orange coral is a single polyp.

06.02.2026 15:12 β€” πŸ‘ 356    πŸ” 38    πŸ’¬ 6    πŸ“Œ 1
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A change of pace for a moment.

A Northern Pygmy Owl stares into the camera while I capture it with electron. It's just over 6" long and it captures songbirds like Juncos & Chickadees which it swallows whole (whole foods).

This was taken at Coppermine Bottoms campground on the Olympic Peninsula.

05.02.2026 22:07 β€” πŸ‘ 68    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

I can't argue with that.

05.02.2026 21:10 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

So is Canada! Thanks for being my neighbor (I never thought I would channel Mr Rogers, but these times mean reflection).

05.02.2026 21:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

A Peregrin Falcon took up residence in the Santa Barbara Harbor some time back and the pigeons disappeared. Those that remained almost never got off the ground. My dog would charge them (on leash) and they just ran faster.

05.02.2026 16:29 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Milton taught some fish courses at UCSB when I was there. Biologists are comfortable among their own kind...

05.02.2026 15:53 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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A young rockfish rests on a rocky pinnacle off of Coal Oil Pt. along with a few urchins, and lots of encrusting algae and inverts.

The pink rock is coralline algae, a kind of seaweed that secretes calcium carbonate. It's been said that coralline algae is the glue holding coral reefs together.

05.02.2026 15:06 β€” πŸ‘ 722    πŸ” 68    πŸ’¬ 13    πŸ“Œ 3

I'm not surprised Dr. Love has a book out on rockfish, he said he could tell the species apart by the taste of their swim bladder's gas (he used to let out the gas when they get hauled up from depths w/barotrauma).

05.02.2026 14:53 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It wasn't so bad except when we had to walk up Palos Verdes several miles cause nobody would pick us up. I had to walk on my toes on the right foot w/the spines.

My friend's, where we were staying was a physician, and he had scalpels and such so I locked myself in the bathroom and cut em out.

04.02.2026 21:17 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I know what you mean, a partner and I once took the larger species of spider crabs off the S. Cal coast and it wasn't edible, and we regretted taking it. There's a fishery though for that spp.

On the other hand I once caught 150 Blue Claw Crabs in Lake Charles when I was a kid and they're great!

04.02.2026 21:13 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Rockfish have poisonous spines, not as bad as Scorpionfish, but still bad enough. I don't spearfish anymore and haven't since I was 30 yrs old but we used to take them when we in our late teens. Calico Bass and halibut are about thinly thing I would fish for now.

04.02.2026 21:09 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I've never been to the Aquarium, but if I had gone to graduate school at UCSB then it's likely I would have worked there cause the lab I was in placed many of the folks there.

My TA from that course went on to work with the Great White Shark they once had. Too toothy for me...

04.02.2026 21:04 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Part of it, but not all, of the colors were from a fire up the coast and the following winter rains put so much sticky adobe mud into the sea that it smothered some beautiful reefs for ten miles down the coast.

Plus, I was using a cheap Canon camera with a lousy color software tool. Never again

04.02.2026 21:01 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Purple urchins were used in the Sea Urchin Genome Project where they were revealed to share 70% of our own genome. I worked with them, identify with them but my most memorable moment was when I got 32 of their spines in my rt heel off of Palos Verdes in my mid teens. Heavily callused feet too.

04.02.2026 20:57 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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That's a type of spider crab that's called a decorator, or masking crab. These crabs have spiky carapaces and they pull stuff like algae or anemones off a rock then hold them on their backs until it sticks there.

I'd see them on top of reefs where they tried to crouch lower when I swam by.

04.02.2026 15:10 β€” πŸ‘ 816    πŸ” 73    πŸ’¬ 22    πŸ“Œ 4
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This Black & Yellow Rockfish has its nose right up to a rock scallop. I've a number of rockfish doing this, they appear to be waiting for shrimp to blunder out in front of them.

There are 22 species of rockfish off of California and the Black & Yellow is said to be more active at night.

03.02.2026 15:20 β€” πŸ‘ 674    πŸ” 53    πŸ’¬ 12    πŸ“Œ 4

I'm not familiar with Schumann Resonance.

Long ago when I was taking Ecology the Gaia theory was a wiping post for my teachers.

02.02.2026 17:18 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Keystone interdependence: Sea otter responses to a prey surplus following the collapse of a rocky intertidal predator Keystone interdependence occurs when shifts in one keystone species affect another, linking ecosystems across boundaries.

This is the best paper I've seen on the community affects from Sea Star Wasting but I didn't find on my computer right away. www.science.org/doi/10.1126/...

02.02.2026 16:21 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Expansion of intertidal mussel beds following disease-driven reduction of a keystone predator Disease shapes community composition by removing species with strong interactions. To test whether the absence of keystone predation due to disease pr…

I know of a lab in Friday Harbor that's raising Sunstars, Pycnopodia, but it's not a massive effort. Pisaster & Sunstars were keystone predators.

There are several really good papers published on the changes to the intertidal after sea stars died off, www.sciencedirect.com/science/arti...

02.02.2026 16:03 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Swept away.

A mating pair of predatory sea slugs (Navanax inermis) gets interrupted by strong swell, tearing apart their mating attempt.

Most sea slugs are hermaphrodites and they fertilize each other at the same time. It doesn't always work out.

Deeper, deeper, I told we need to go deeper!

02.02.2026 15:44 β€” πŸ‘ 449    πŸ” 42    πŸ’¬ 19    πŸ“Œ 4

When I was very young my neighbors went to the Gulf Coast and brought back shells which they laid out to dry. All the shells were occupied by hermit crabs so they killed a few hundred plus it smelled awful. It's really dumb.

02.02.2026 15:33 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In this country I'm a fringehead, but that's not the sarcastic one. I had a fish-science course prof who used to delight in telling the story of fishermen doing dances with a sarcastic fringehead attached to their finger. My dog almost met the same fate w/her nose. That's one territorial fish.

02.02.2026 15:29 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Hi Linda, that's not a recent photo. My friends in Santa Barbara see them on the beach frequently now, and I'm in WA now but that was taken near SB well before the die-off.

Vibrio, closely related to the Cholera-agent, was a big problem in SB Harbor so I think pollution + warming drove the die off.

02.02.2026 15:24 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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Impact of darkwaves on marine ecosystems revealed An international team of scientists has developed ways to measure and compare the impact of "darkwaves"β€”when extreme weather events or human activities reduce underwater light for extended periods, af...

The sea star wasting syndrome was caused by Vibrio spp. I won't be surprised if it is the cause of the Diadema die off too. Plus, it's likely to be linked to Climate Change coupled with pollution (sewage, runoff, land-use changes).

Ecologists are developing a theory for it phys.org/news/2026-01...

02.02.2026 15:19 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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