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Omaha Steve

(99,660 posts)
Sat Jun 13, 2015, 07:47 PM Jun 2015

Giant purple sea slugs slime San Francisco Bay Area beaches

Source: AP

ALAMEDA, Calif. (AP) — A giant purple blob from the sea — a slug — is invading East Bay beaches and waterways this summer, and some experts say it may be caused by warmer temperatures near coastal waters.

These California sea hares are harmless plant eaters. But their big size and unusual abundance this year is turning heads at the shorelines in the cities of Crab Cove in Alameda and Miller Knox Regional Park in Richmond, as well as Lake Merritt in Oakland and Tomales Bay in Marin County, the Contra Costa Times reported Saturday (http://bayareane.ws/1IRy5ej ).

"We are getting calls from the public asking what the heck is this big weird purple blob," said Carolyn Jones, a spokeswoman for the East Bay Regional Park District. "It's native to our area. It's not endangered, but they are rarely seen other than an occasional one here or there."

Officials have no precise count, but dozens have been seen on some beaches at the same time, and two dozen were spotted last month in an inlet to Lake Merritt in Oakland.

FULL story at link.

Read more: http://bigstory.ap.org/article/0582c00080c246b684a12dea91813736/giant-purple-sea-slugs-slime-san-francisco-bay-area-beaches

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Giant purple sea slugs slime San Francisco Bay Area beaches (Original Post) Omaha Steve Jun 2015 OP
During the El Nino of 1982-83 ... undiegrinder Jun 2015 #1
WHAT IN FUCK'S NAME IS THIS??!? Blue_Tires Jun 2015 #2
50 Quotes From The Movie Aliens, Ranked In Order Of Awesomeness Omaha Steve Jun 2015 #3
Hopkin's rose nudibranch? Igel Jun 2015 #6
Hehe Starry Messenger Jun 2015 #11
bob keroro gunsou Jun 2015 #15
This is Aplysia MBS Jun 2015 #17
The new mascot for the Republican Party. Why do you ask? jmowreader Jun 2015 #22
Lake Merritt? How does that work? haikugal Jun 2015 #4
Lake Merritt got reconnected with the bay three years ago Brother Buzz Jun 2015 #12
Wow, that sounds wild. haikugal Jun 2015 #13
By all accounts the 'stink' is dissipating and the biodiversity is rebounding.... Brother Buzz Jun 2015 #16
Could you imagine walking along Seedersandleechers Jun 2015 #5
I live in the Bay Area and have seen these alboe Jun 2015 #7
Ooooh, good excuse to go to Crab Cove. Gormy Cuss Jun 2015 #8
Slugs. If I find a slug in my garden I get him a can of beer (to catch it). They to eat plants. But jwirr Jun 2015 #9
They have their own theme song! csziggy Jun 2015 #10
Poor buggars... haikugal Jun 2015 #14
Article doesn't say if it's possible to have sex with a giant purple sea slug. Kaleva Jun 2015 #18
You watch...some guy from Fla. will be along with that thought in mind, any minute now. dixiegrrrrl Jun 2015 #20
I'm placing my bet on Ohio Man Kaleva Jun 2015 #24
Tourist season has started I see. NuclearDem Jun 2015 #19
thanks Obama! n/t Enrique Jun 2015 #21
Our ocean temperatures off the coast of the Bay Area have been several degrees warmer the past year CreekDog Jun 2015 #23

undiegrinder

(79 posts)
1. During the El Nino of 1982-83 ...
Sat Jun 13, 2015, 08:08 PM
Jun 2015

I remember how, from a distance, the beaches at Catalina Island appeared to be BRIGHT red.

Only when you got close enough could you see it was actually a gazillion small, scrambling pelagic red crabs -- make that small, scrambling DELICIOUS pelagic red crrabs.

It looked like this pic taken in Australia (h/t photographer Phillip Colla, oceanlight.com):


Igel

(35,320 posts)
6. Hopkin's rose nudibranch?
Sat Jun 13, 2015, 09:14 PM
Jun 2015

Nudibranch is just a better name for "sea slug."

My kid's "animal alphabet"--some Australian singer made it--had "N is for nudbranch!"

MBS

(9,688 posts)
17. This is Aplysia
Sun Jun 14, 2015, 12:30 PM
Jun 2015

Pretty common animal, native to Pacific coast,ranges from far northern California to Baja; and used in neurobiology research.
A little weird to see them in SF Bay-- ordinarily, SF Bay is slightly reduced in salinity, and I think of them as rocky-shore, open-ocean type critters.
So maybe this is about the drought.Because of drought, SF Bay hasn't been getting as much fresh-water input, and salinity is probably closer to regular -ocean salinity than usual. Which means that "regular" marine critters would start to establish themselves in SF Bay, not just the outer ocean coast.

Fun to watch them munching on seaweed: they kind of remind me of sheep (OK, purple slimy sheep)

Brother Buzz

(36,444 posts)
12. Lake Merritt got reconnected with the bay three years ago
Sat Jun 13, 2015, 11:57 PM
Jun 2015

Water goes in and out of the lake with the tides, and by definition, it's now a tidal lagoon again.

haikugal

(6,476 posts)
13. Wow, that sounds wild.
Sun Jun 14, 2015, 12:12 AM
Jun 2015

That and the zoo were favorite haunts of mine back in the day. I had no idea...I imagine it changed the whole nature of the place, or am I wrong?

Thanks Bro Buzz

Brother Buzz

(36,444 posts)
16. By all accounts the 'stink' is dissipating and the biodiversity is rebounding....
Sun Jun 14, 2015, 12:15 PM
Jun 2015

albeit slowly. With a little more human help, Mother Nature will complete the job; early reports indicate oysters (the canary in the coal mine) have returned in small numbers.

alboe

(192 posts)
7. I live in the Bay Area and have seen these
Sat Jun 13, 2015, 09:21 PM
Jun 2015

and have also seen the blue jellyfish like things that were washing ashore last summer. My friend called them "alien capsules."

Gormy Cuss

(30,884 posts)
8. Ooooh, good excuse to go to Crab Cove.
Sat Jun 13, 2015, 09:27 PM
Jun 2015

One of the strangest things I've seen on a beach was a mass stranding of by-the-wind-sailors. They looked like melted mussels.

jwirr

(39,215 posts)
9. Slugs. If I find a slug in my garden I get him a can of beer (to catch it). They to eat plants. But
Sat Jun 13, 2015, 09:54 PM
Jun 2015

these sea slugs are huge - wonder how many plants they eat in a day?

Kaleva

(36,312 posts)
18. Article doesn't say if it's possible to have sex with a giant purple sea slug.
Sun Jun 14, 2015, 12:40 PM
Jun 2015

Important questions are unanswered and readers are left wondering.

CreekDog

(46,192 posts)
23. Our ocean temperatures off the coast of the Bay Area have been several degrees warmer the past year
Mon Jun 15, 2015, 02:30 AM
Jun 2015

starting around last June.

even without an El Nino, this was the case.

they cooled to near normal for April and May, but interestingly enough, at the end of may have been hovering around 60F, when normally they are in the low 50's.

it's not just the warmer ocean to consider, but the cause, a lack of upwelling of cold, deep ocean water to the surface, which cools our coastline considerably.

this upwelling not only cools the ocean, but it brings nutrient rich waters from the deep.

a lack of this stuff is worth exploring the effects of.

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