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oceanworld.tamu.edu...
Simply, the effects of oil on marine life, are caused by either the physical nature of the oil (physical contamination and smothering) or by its chemical components (toxic effects and accumulation leading to tainting)...Biological, including physical effects such as smothering and the influence of toxic chemicals...The main threat posed to living resources by the persistent residues of spilled oils and water-in-oil emulsions ("mousse") is one of physical smothering.
Twenty years after the Exxon Valdez spilled 11 million gallons of crude oil in Alaska's Prince William Sound, oil persists in the region and, in some places, "is nearly as toxic as it was the first few weeks after the spill," according to the council overseeing restoration efforts.
en.wikipedia.org...
Almost 20 years after the spill, a team of scientists at the University of North Carolina found that the effects are lasting far longer than expected. The team estimates some shoreline Arctic habitats may take up to 30 years to recover.
magblog.audubon.org...
Mussels and tube worms, coral crabs and brittle stars carpet the dark, frigid ocean floor, feeding off of petrochemicals that ooze from beneath the surface. These ecosystems, known as cold seeps, baffled scientists at first, but after much research, biologists realized how they thrive. Now oceanographers and deep sea scientists think that the greatest concentration of habitats may lie in the Gulf of Mexico. Since the late 1970s, more than 100 cold seep sites have been discovered there, but in a terrible twist of fate, they may all be threatened by the oil spill.
Biologists who have been studying the seeps are afraid that the oil could poison or suffocate the organisms, some of which may be predate Christopher Columbus. The dispersants released below the water’s surface could also have a negative effect.
Crabs, mussels, oysters and shrimp feed on the plankton, he said. Oil smothers the plankton, meaning they cannot eat.
Originally posted by justadood
Well, at least it will match the hundreds of millions of tons of industrial waste, urban run-off, and consumer packaging that have been slowly killing the oceans for decades.
images2.cafemom.com...
images2.cafemom.com...
[edit on 7-7-2010 by justadood]
www.msnbc.msn.com...
Delicate coral reefs already have been tainted by plumes of crude oil spewing into the Gulf of Mexico, including a sensitive area that federal officials had tried to protect from drilling and other dangers.
And marine scientists are worried even more of the deep-sea reefs could be damaged as the thick goo creeps into two powerful Gulf currents. The oil has seeped into areas that are essential to underwater life, and the reefs tend to be an indicator for sea health: when creatures in the reefs thrive, so do other marine life.
The loop current could carry oil from the spill east and spread it about 450 miles to the Florida Keys, while the Louisiana coastal current could move the oil as far west as central Texas.
The depth of the gushing leaks and the use of more than 560,000 gallons of chemicals to disperse the oil, including unprecedented injections deep in the sea, have helped keep the crude beneath the sea surface. Marine scientists say diffusing and sinking the oil helps protect the surface species and the Gulf Coast shoreline but increases the chance of harming deep-sea reefs.
"At first we had a lot of concern about surface animals like turtles, whales and dolphins," said Paul Montagna, a marine biologist at Texas A&M University Corpus Christi who studies Gulf reefs. "Now we're concerned about everything."
On Sunday, researchers said computer models show oil has already entered the loop current that could carry the toxic goo toward the Keys, the third-longest barrier reef in the world.
Oil spills present the potential for enormous harm to deep ocean and coastal fishing and fisheries. The immediate effects of toxic and smothering oil waste may be mass mortality and contamination of fish and other food species, but long-term ecological effects may be worse. Oil waste poisons the sensitive marine and coastal organic substrate, interrupting the food chain on which fish and sea creatures depend, and on which their reproductive success is based. Commercial fishing enterprises may be affected permanently.
Wildlife other than fish and sea creatures, including mammals, reptiles, amphibians, and birds that live in or near the ocean, are also poisoned by oil waste. The hazards for wildlife include toxic effects of exposure or ingestion, injuries such as smothering and deterioration of thermal insulation, and damage to their reproductive systems and behaviors. Long-term ecological effects that contaminate or destroy the marine organic substrate and thereby interrupt the food chain are also harmful to the wildlife, so species populations may change or disappear.
NOAA says there is no threat To Florida Keys from the Gulf BP Oil Spill and has even taken the loop current off of its watch list.
But in addition to ROFFS tracking, SkyTruth satellite analysis, eyewitness reports, and reports from USF scientists saying otherwise we can now we can add aerial photos showing showing oil in Florida keys to the growing list of evidence of deliberate misinformation being told to the public by BP and the Government.
Originally posted by LostNemesis
It's disturbing how humans in "high places" can claim to take whatever they want from earth. Perhaps NOW Mother Nature is Pissed and wants to shake the parasites from her surface.
Thats an interesting slant/way of looking at it. Picking litter up if far far easier than trying to clean the oceans and coastline thats going to be forever messed up by this oil.
Originally posted by LostNemesis
I really hate the idea that something that comes from Earth(Mother Nature herself) is so damn harmful to everything.
It's disturbing how humans in "high places" can claim to take whatever they want from earth. Perhaps NOW Mother Nature is Pissed and wants to shake the parasites from her surface.
I really hate the idea that something that comes from Earth
(Mother Nature herself) is so damn harmful to everything.
While most of the attention so far has been on the millions of gallons of oil that have escaped from the damaged BP rig in the Gulf of Mexico, many environmentalists are now wondering if the real danger to humans from this whole crisis may be the massive amounts of benzene and hydrogen sulfide that are escaping into the air. Hydrogen sulfide is a chemical asphyxiant, similar to carbon monoxide and cyanide gases. It causes "biochemical suffocation" by inhibiting cellular respiration and the uptake of oxygen. Benzene is a highly carcinogenic gas that can cause death if inhaled at high enough concentrations. Not only that, benzene has been shown to cause leukemia in all its forms.
High levels of both gases have been detected at testing stations in the Gulf of Mexico. In addition, it is being reported that many fishermen in the Gulf that have been assisting with cleanup efforts have been getting seriously ill from breathing that air. There have been reports of symptoms including headaches, nausea, dizziness, burning eyes, coughing, sore throats, and stuffy sinuses. So as this oil spill continues and even more of these gases are released, are people across the southeast United States about to start breathing air that is filled with highly toxic gases?