Current Events > Sea Otters slow erosion by 90% in California after eating so many crabs

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UnfairRepresent
02/05/24 12:06:24 PM
#1:


Against all odds, a distressed California coastal ecosystem is on the mend, in large part, thanks to the insatiable appetite sea otters have for crabs.

In a groundbreaking study published this week in Nature, scientists revealed that the return of sea otters to their former habitat in a Central California estuary has slowed erosion of the areas marsh banks by up to 90%.

The resurgence of these charismatic marine mammals to the salt marshes of Elkhorn Slough in Monterey County sparks hope for improving coastal ecosystems and marks a significant ecological success story.

Restoring the otter population was achievable without significant effort, and as a result, we are now unlocking several decades of benefits from that one act of conservation, said Christine Angelini, Ph.D., one of the studys authors and director of the Center for Coastal Solutions at the University of Florida.

At a time when rising sea levels, elevated fertilizer run-off, and stronger tidal currents should be causing the opposite effect, findings show that erosion has been slashed after reintroducing a top predatorthe sea otterwhose insatiable appetite for plant-eating marsh crabs is making the difference.

It would cost tens of millions of dollars for humans to rebuild these creek banks and restore these marshes. The sea otters are stabilizing them for free, in exchange for an all-you-can-eat crab feast, said senior author and marine conservation biology professor Brian Silliman, Ph.D. at Duke University.

By documenting for the first time that reintroducing top predators to their former habitat can bring stability to a collapsing ecosystem, researchers wondered if similar results could be achieved in ecosystems worldwide.

Reintroducing sea otters allowed these ecosystems to restabilize, despite all the other pressures they are subject to, said the studys lead author Brent Hughes, Ph.D., associate professor of biology at Sonoma State University. That suggests this could be a very effective and affordable new tool for our conservation toolkit.

Like many California estuaries, Elkhorn once was a foraging habitat for sea otters, which need to eat the equivalent of about 25% of their body weight every dayaround 20 to 25 pounds of food, with crabs being one of their favorite meals.

But after fur traders hunted the local otter population nearly to extinction, the number of crabs exploded over the next century. Crabs eat salt marsh roots, dig into salt marsh soil, and over time can cause a salt marsh to erode and collapse.

Today, years after the otters were recolonized, aerial photography confirmed marshes and creek banks became more stable (despite rising sea levels, increased water flow from inland sources, and greater pollution). Some marshes were even expanding.

Angelini said that tool is an encouraging sign for her and colleagues as they confront similar threats to Floridas coastlines from sea level rise, intense storms, and excess nutrients spilling into coastal waters.

All these challenges can feel unsurmountable, Angelini said. This study indicates to us that, if we truly understand the ecosystem and know what levers to pull, we can see significant benefits to the health and stability of these systems.

The research team conducted large-scale surveys across 13 tidal creeks, as well as small-scale field experiments at five locations around the estuary over a six-year period. Otters were excluded from some test sites but allowed to recolonize others, using a caging system designed by Angelini.

As a graduate student in biology at UF, I had been setting up these types of cages and manipulating access to predators and their prey in salt marshes all over the Southeastern U.S., Angelini explained. Ill never forget building all the cages in the parking lot of the estuary out in California. And all these years later, we now see these amazing results.
Its an uplifting story about the benefits of conservation and persistent, long-term research.

Full Article: https://www.goodnewsnetwork.org/coastal-ecosystem-on-the-mend-thanks-to-sea-otters-appetite/

https://gamefaqs.gamespot.com/a/forum/4/488826a4.jpg

Nature is scary man

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ai123
02/05/24 12:08:02 PM
#2:


Next: how will California deal with its fat sea otter problem?

Sharks?

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Cocytus
02/05/24 12:10:32 PM
#3:


Hooray

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texanfan27
02/05/24 12:13:23 PM
#4:


ai123 posted...
Next: how will California deal with its fat sea otter problem?

Sharks?

nope, bears. Then how you deal with the bears is the main question


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mario2000
02/05/24 12:14:13 PM
#5:


texanfan27 posted...
nope, bears. Then how you deal with the bears is the main question

Gorillas

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UnfairRepresent
02/05/24 12:14:57 PM
#6:


texanfan27 posted...
nope, bears. Then how you deal with the bears is the main question
Buy a rock from Lisa

Or is that tigers?

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LaLeyenda
02/05/24 12:16:58 PM
#7:


https://gamefaqs.gamespot.com/a/forum/2/2b187970.jpg

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Prestoff
02/05/24 12:21:51 PM
#8:


California government should give tax exemptions to the Sea Otters now.

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UnfairRepresent
02/05/24 3:57:32 PM
#9:


LaLeyenda posted...
https://gamefaqs.gamespot.com/a/forum/2/2b187970.jpg
Their payment is crabs

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1337toothbrush
02/05/24 4:07:23 PM
#10:


Bruh, let me in on this crab buffet.

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Link_of_time
02/05/24 4:10:08 PM
#11:


1337toothbrush posted...
Bruh, let me in on this crab buffet.
I'll introduce you to my ex
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Lordgold666
02/05/24 4:12:08 PM
#12:


1337toothbrush posted...
Bruh, let me in on this crab buffet.


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Alucard188
02/05/24 4:14:49 PM
#13:


I'm in otter disbelief.

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-Unowninator-
02/05/24 4:17:03 PM
#14:


LaLeyenda posted...
https://gamefaqs.gamespot.com/a/forum/2/2b187970.jpg
LOL

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Hambo
02/05/24 4:18:01 PM
#15:


ai123 posted...
Next: how will California deal with its fat sea otter problem?
Just give the crabs guns.

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Crayon_Lover
02/05/24 4:20:47 PM
#16:


Sounds like the work of the Allied Atheist Alliance (AAA)

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-Unowninator-
02/05/24 4:22:43 PM
#17:


Crayon_Lover posted...
Sounds like the work of the Allied Atheist Alliance (AAA)
Oooh I `membe that.

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Humble_Novice
02/05/24 4:23:02 PM
#18:


California truly is blessed.

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Trumble
02/05/24 4:23:35 PM
#19:


Hambo posted...
Just give the crabs guns.
Then you're back to having too many crabs. Except now they've got guns.

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Hambo
02/05/24 4:25:56 PM
#20:


Trumble posted...
Then you're back to having too many crabs. Except now they've got guns.
That's when you give the otters guns, too. The balance of power is directly proportional to the balance of guns. If one side gets too powerful, just give the other guys more guns. It's the American way.

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Trumble
02/05/24 4:27:29 PM
#21:


Hambo posted...
That's when you give the otters guns, too. The balance of power is directly proportional to the balance of guns. If one side gets too powerful, just give the other guys more guns. It's the American way.
Eventually you reach a point of maximum gun saturation, where insufficient crabs / otters exist to operate the guns. Then what? Give them nukes?

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Waxitron_Gazer
02/05/24 4:28:12 PM
#22:


damn so that's why seafood prices are so high

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SpawnShadow
02/05/24 4:32:52 PM
#23:


UnfairRepresent posted...
Buy a rock from Lisa

Or is that tigers?
Tigers. For bears, you need the Bear Patrol.
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Hambo
02/05/24 4:41:36 PM
#24:


Trumble posted...
Eventually you reach a point of maximum gun saturation, where insufficient crabs / otters exist to operate the guns. Then what? Give them nukes?
Crabs have ten legs each. Otters only have four each, but they're crafty little fuckers what with their rocks and such, so they'll find a way to wield a few guns too. If maximum gun saturation is a problem, we'll just cross that bridge when we come to it. Until then, just keep handing out more guns.

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PBusted
02/05/24 7:21:49 PM
#25:


What
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#26
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Waxitron_Gazer
02/05/24 7:38:14 PM
#27:


has anyone ever had otter meat?

like could you mix it in w/ ground beef and still make a good burg?

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UnfairRepresent
02/07/24 7:44:44 AM
#28:


Waxitron_Gazer posted...
has anyone ever had otter meat?

like could you mix it in w/ ground beef and still make a good burg?
Otter Meat is dark red, fine grained, moist and tender, and when properly prepared, is similar in flavour to roast pork. It is usually slow-cooked in a broth, and was a valuable food source to Native Americans.


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[deleted]
02/08/24 4:01:23 AM
#29:


[deleted]
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ROBANN_88
02/08/24 5:28:09 AM
#30:


So what is it about crabs that cause erosion?

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NittanyLions23
02/08/24 5:29:22 AM
#31:


You cant blame the otters.

I love crabs too

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UnfairRepresent
02/08/24 5:30:47 AM
#32:


ROBANN_88 posted...
So what is it about crabs that cause erosion?
"Their burrowing weakens the creekbank edges, so that whole chunks of marsh will sometimes calve off, and by lowering biomass they are reducing the ability of marsh plants to prevent erosion, said lead author Kathryn Beheshti, who earned her Ph.D. in ecology and evolutionary biology at UC Santa Cruz in 2021 and is currently a California Sea Grant State Fellow at the Ocean Protection Councils Climate Change Program.

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dioxxys
02/08/24 5:36:14 AM
#33:


So we could have solved this if we just ate all the crabs? They are so tasty.

Waxitron_Gazer posted...
has anyone ever had otter meat?
Carnivores usually taste bad or are full of parasites
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brestugo
02/08/24 6:24:08 AM
#34:


1337toothbrush posted...
Bruh, let me in on this crab buffet.

Dungeness FTW!

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#35
Post #35 was unavailable or deleted.
UnfairRepresent
02/11/24 6:29:45 PM
#36:


dioxxys posted...
So we could have solved this if we just ate all the crabs? They are so tasty.
You gonna go live in the water and hunt grabs all day?

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#37
Post #37 was unavailable or deleted.
Unknown5uspect
02/13/24 7:05:08 PM
#38:


Hambo posted...
just keep handing out more guns.
https://gamefaqs.gamespot.com/a/forum/2/27b68242.jpg
Got it, chief

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UnfairRepresent
02/14/24 4:15:02 AM
#39:


Unknown5uspect posted...
https://gamefaqs.gamespot.com/a/forum/2/27b68242.jpg
Got it, chief

wut

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kingdrake2
02/14/24 4:28:35 AM
#40:


UnfairRepresent posted...
Otter Meat is dark red, fine grained, moist and tender, and when properly prepared, is similar in flavour to roast pork


i would probably eat it if it was an invasive species.

and cheaper alternative to certain foods.

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UnfairRepresent
02/15/24 5:02:05 AM
#41:


kingdrake2 posted...
i would probably eat it if it was an invasive species.

and cheaper alternative to certain foods.
I've never seen it for sale

And I'm not hunting one

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DiScOrDtHeLuNaTiC
02/15/24 5:14:11 AM
#42:


Hambo posted...
That's when you give the otters guns, too. The balance of power is directly proportional to the balance of guns. If one side gets too powerful, just give the other guys more guns. It's the American way.
"If the deer had guns too, then, and only then, would hunting truly be a sport." -- Lewis Grizzard

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LeoRavus
02/15/24 5:18:06 AM
#43:


The article vibes like it's a miracle that otters actually had a purpose in the area where they evolved.

"Groundbreaking" that they weren't simply some useless cuddly water weasels swimming around for hundreds of thousands of years. Ecosystems work? It's almost like magic.

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UnfairRepresent
02/15/24 3:40:04 PM
#44:


LeoRavus posted...
The article vibes like it's a miracle that otters actually had a purpose in the area where they evolved.

"Groundbreaking" that they weren't simply some useless cuddly water weasels swimming around for hundreds of thousands of years. Ecosystems work? It's almost like magic.

What a silly post lol

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