U.S. government scientists have connected the BP oil disaster to dolphin deaths in the Gulf of Mexico. The study for the first time found direct evidence of toxic exposure. The study, led by scientists from the National Oceanic and Atmospheric Administration (NOAA), found lung disease, hormonal abnormalities and other health effects among dolphins in an area heavily oiled during the BP spill. The diseases found in the dolphins at Barataria Bay in Louisiana – though rare – were consistent with exposure to oil, the scientists said. The study said:
Many disease conditions observed in Barataria Bay dolphins are uncommon but consistent with petroleum hydrocarbon exposure and toxicity.
Half of the dolphins were given a guarded prognosis. Sadly, 17 percent of the dolphins were expected to die of the disease, the researchers found. Lori Schwake, the study’s lead author, in a statement, said:
I’ve never seen such a high prevalence of very sick animals – and with unusual conditions such as the adrenal hormone abnormalities.
The scientists caught, examined and released about 30 bottlenose dolphins from Barataria Bay in 2011, one year after the disaster. The area was one of the most heavily oiled areas following the April 2010 blowout of BP’s deepwater well. Government scientists and conservation groups had been concerned from the outset about the effects on marine life of the vast amounts of oil that entered the water. But this study, published in the peer-reviewed journal Environmental Science and Technology, produced the strongest evidence to date of the effects of the spill on marine life. The study said:
The severe disease documented by this study and the continued elevation of mortalities raise significant concerns regarding both short-term and long-term impacts on the Barataria Bay dolphin population.
Jacqueline Savitz, senior campaign director of the Oceana conservation group, said the findings confirmed her fears at the time that the oil spill would take a high toll on dolphins, whales and other marine life in the Gulf. Mrs. Savitz observed:
After the spill I saw dolphins swimming in and out of oil slicks, breathing air at the surface that I knew contained hydrocarbons from the spill since I could smell them myself. The dolphins were likely exposed to the oil in other ways as well, by swallowing water, and through their food. While we have seen an unusual number of dolphin deaths during and after the spill, this report verifies that the oil took a larger toll on dolphins.
Few of the symptoms in the Barataria Bay dolphins were reported among wild dolphin populations in Sarasota Bay, Fla., which was not oiled during the spill, the scientists said. BP has consistently disputed any connection between the oil spill and a mysterious spike in dolphin deaths in the Gulf of Mexico that was first reported three months before the oil spill. BP plays fast and loose with the truth and has very little credibility with any of the lawyers in our firm who have dealt with them.
Source: Associated Press
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