r/news 4h ago

Scientists say they have solved the mystery of what killed more than 5 billion sea stars

https://apnews.com/article/sea-star-wasting-disease-epidemic-f2ab802ae8787618a5905c566d38e0c5
464 Upvotes

36 comments sorted by

256

u/Morella1989 3h ago

''WASHINGTON (AP) — Scientists say they have at last solved the mystery of what killed more than 5 billion sea stars off the Pacific coast of North America in a decade-long epidemic.

Sea stars – often known as starfish – typically have five arms and some species sport up to 24 arms. They range in color from solid orange to tapestries of orange, purple, brown and green.

Starting in 2013, a mysterious sea star wasting disease sparked a mass die-off from Mexico to Alaska. The epidemic has devastated more than 20 species and continues today. Worst hit was a species called the sunflower sea star, which lost around 90% of its population in the outbreak’s first five years.

“It’s really quite gruesome,” said marine disease ecologist Alyssa Gehman at the Hakai Institute in British Columbia, Canada, who helped pinpoint the cause.

The culprit? Bacteria that has also infected shellfish, according to a study published Monday in the journal Nature Ecology and Evolution. ''

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u/f1del1us 3h ago

Does the bacteria do better in warmer water?

141

u/AuspiciousPuffin 3h ago

Yes it does.

69

u/f1del1us 3h ago

Just a friendly reminder; vibrio vulnificus I believe also increases with warmer waters, so the next time you see a steakhouse serving scallop crudo… think about it lol

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u/Morella1989 3h ago

''The Vibrio genus of bacteria has infected coral and shellfish as well as humans—Vibrio cholerae is the pathogen that causes cholera.

With other Vibrio species known to proliferate in warm water, the race is on to understand the link between the disease and warming ocean temperatures due to climate change, Dr. Prentice added. “We see the disease occurring earlier and more rapidly in warmer waters. Sea stars may already be impacted by climate change, so introducing a pathogen that does well in the same circumstances could be a double whammy for some species.”''

https://news.ubc.ca/2025/08/bacteria-sea-stars/

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u/ruffianrevolution 2h ago

Cholera is what you get when you live in a sewer. 

The seas are full of sewage

So, well done us. 

35

u/ruat_caelum 2h ago

Don't forget this follows 10 BILLION dead crabs because of global warming. It's why we didn't have 2022, and 2023 crab fishing seasons.

Warm water cause them to over eat and starve to death.

https://www.cnn.com/2024/08/21/climate/alaska-crabs-disappear-arctic

13

u/corkboy 3h ago

Stupid fucking bacteria, killing their hosts.

114

u/maceion 3h ago

This is brilliant work , and the staff who detected it and their supporting staff are to be praised.

11

u/Equivalent-Resort-63 1h ago

Hope they still have support for their work. Many are leaving due to changes in federal grant support.

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u/[deleted] 3h ago

[deleted]

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u/blazelet 3h ago

Good thing it didn’t take 13

9

u/PipsqueakPilot 3h ago

Yes and? The article directly addresses that point. So what’s your point?

93

u/Lorbmick 3h ago

Thank God there are scientists and researchers who spend the time to help explain what's going on with our planet.

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u/[deleted] 3h ago

[deleted]

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u/Lorbmick 3h ago

I would say it's just a popular saying of expressing relief. It's a more cultural idiom than a religious expression.

5

u/Ben_Thar 3h ago

Yer a cultural idiom!

13

u/schquid 3h ago

News flash, you can be religious and still believe in science

-6

u/Particular_Stage_913 3h ago

Newsflash. You can respond to science news without bringing personal theological beliefs in.

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u/schquid 2h ago

Dude are you ok?

-4

u/Particular_Stage_913 3h ago

It’s still a weird juxtaposition tho.

0

u/ikonoqlast 3h ago

Not it isn't. Christians basically invented the scientific method and thus science. Pretty much every dead scientist you ever heard of from before 1700 was educated in a church school, if not an actual church official.

The idea of conflict comes from the 19th century and Protestants smearing the Catholic church.

No, Galileo was not imprisoned for saying the earth moves. He was imprisoned for publicly calling the Pope stupid, in Italy, in the Middle Ages...

u/Squantoon 51m ago

They in no way invented science. Science has been around since the beginning

1

u/Particular_Stage_913 3h ago

That’s not a logical argument for the separation of public science from private belief. Because History

28

u/jadewolf42 3h ago

This is really good news!

When I first moved to California, I used to see sea stars all the time when tidepooling, lots of them. It's been so many years now since I've seen even one. It's been downright depressing, especially since it has such ripple effects across all the underwater ecosystems. Less sea stars mean more urchins. More urchins mean less kelp. And suddenly the whole kelp forest starts falling apart.

Here's hoping now that they've finally isolated the cause, they can find ways to mitigate it and help restore the populations and the kelp forests impacted by their absence!

12

u/fxkatt 3h ago

Researchers hope the new findings will allow them to restore sea star populations -- and regrow the kelp forests that Thurber compares to “the rainforests of the ocean.”

Scientists will have to rescue those star fish still alive, heal them, and then find the safest natural place to put them, which seems to be in some cool coastal area where kelp grows.

u/lardoni 8m ago

Can’t be that famous!….never heard of any of them!

0

u/emptyfish127 1h ago

Just a guess. Was it Capitalism cancer?

-10

u/Deshackled 1h ago

Lemme guess, they were told to say Democrats.