AP/ February 24, 2011, 9:01 PM

Why are baby dolphins washing ashore in Gulf?

NEW ORLEANS - Scientists are trying to figure out what killed 53 bottlenose dolphins — many of them babies — so far this year in the Gulf of Mexico, as five more of their carcasses washed up Thursday in Louisiana, Mississippi and Alabama.

It's likely to be months before they get back laboratory work showing what caused the spontaneous abortions, premature births, deaths shortly after birth and adult deaths said Blair Mase, the National Oceanic and Atmospheric Administration's stranding coordinator for the Gulf Coast.

Calves and fetuses made up at least 85 percent of the deaths in Alabama, 60 percent or more of those in Mississippi and Florida, and 20 percent in Louisiana, according to NOAA figures.

The Mississippi and Alabama deaths are in areas where bottlenose dolphins go to calve, said Moby Solangi, director of the Institute for Marine Mammal Studies in Gulfport.

Solangi said he'd never seen anything like the calf deaths, or found word of anything like it in 30 years of records from his area - Alabama, Mississippi and east Louisiana.

However, Mase said 68 dolphins that washed up in east Texas in March 2007 also included an unusually large number of calves. The bodies were too decomposed to find the cause, she said.

Although scientists are investigating whether the deaths are related to last year's huge BP oil spill, Mase confirmed that toxins from oil or chemicals used to disperse it may be a less likely cause than cold or disease. That's because only one species of dolphin — and no other kind of animal — is dying, and because the calf deaths appear concentrated in Mississippi and Alabama rather than Gulf-wide.

The dolphins found Thursday include three off Louisiana and one each off Mississippi and Alabama, NOAA spokeswoman Kim Amendola said. The bodies had not been retrieved, so ages and sizes were not known, she said.

Dolphins usually calve in March and April.

Mase said dolphin stranding reports have been unusually high since January 2010. Last winter's deaths probably were caused by extreme cold, she said. "It was a very, very cold winter last year. We had a lot of turtle mortality, manatee mortality and dolphin mortality."

The Deepwater Horizon exploded into flames on April 20 and sank four days later. The spill response brought crews out to look for oiled wildlife and to clean the remote areas where most strandings occur, Mase said.

Because those areas are remote, there's no way to know the true numbers of dolphin strandings and deaths. "The number is not absolute — just a kind of barometer," Mase said.

© 2011 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.
12 Comments Add a Comment
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brian_norwood says:
Why are dolphins washing up on shore? Where the hell else are they suppose to wash up?
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thanksgreed replies:
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please don't make a effort to point your lack of intelligence....
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rf35 says:
So maybe the oil or dispersants didn't directly cause the deaths, but they may still be at the root. The toxins could have weakened the animals' immune systems and opened them up to infections and other diseases. Combine that with colder water (what, exactly, is global warming heating up?!?) and the stress of the whole incident and I can easily see how this type of thing could occur.

Maybe NOAA should get some help from scientists in Japan. After all, they must be experts at cetacean science considering all the "scientific" whale hunting they do.
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tsigili says:
Probably because humans are destroying the world's environment.
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jtdev1 says:
It's going to take them months to cobble up some other reason this is happening because for sure, it can't be caused from the oil spill or chemicals used.

the longer they wait, the more the story dies down...
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birdflight says:
This is just the tip of the iceberg! Time Magazine last week showed
pictures of starfish and other sea animals dead! on the bottom of the ocean floor! Even tube worms too! full of --guess what!? YES! OIL!!!!
So --it is any winder we now get dolphins too!

So is BP gonna get involved in the research and assistance of the animal deaths or are they already involved??? I do not know--Yet BP OIL company should be involved!!!

If? not than CBS NEWS should be doing a report on that too!
The leak is sealed--THANK GOD! Yet--what the repercussions are? no one knows--but it is time to be responsible! as a company!

So --get busy CBS and do your job! on the front of the news and the continued things that take place from the oil spill! continue putting BP in the limelight! they will not like it! BUT! BP needs to be doing more too!
BIRDFLIGHT!
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slownewsdayomewannagohome says:
Why are things dying in the Gulf after the worst oil spill in history?

Really, it's anyone's guess.

.
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rwsmith29456 says:
OF COURSE it isn't caused by the oil spill.
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slownewsdayomewannagohome replies:
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What oil spill?
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slownewsdayomewannagohome says:
From the article:

"It's likely to be months before they get back laboratory work showing what caused the spontaneous abortions, premature births, deaths shortly after birth and adult deaths"

Well, it sounds like God did it. Doesn't it? He does a lot of abortions via miscarriage.

Or maybe doesn't God like the oil companies?


.
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rightbehind replies:
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The very week republicans took back congress millions of fish washed up on shores and hundreds of thousands of birds died while in flight. My guess is that, "because I don't speak for him" he doesn't like ignorance either.
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mask2697 says:
This is horrible, I hope they can find the cause and save the doliphins before its to late
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