Coastal creatures may have reduced ability to fight off infections in acidified oceans, American Physiological Society, August 5, 2010:
Louis Burnett, professor of biology and director of the Grice Marine Laboratory of the College of Charleston, and Karen Burnett, research associate professor at Grice Marine Laboratory of the College of Charleston, study the effects of low oxygen and high carbon dioxide on organisms' immune systems. They have found that organisms in these conditions can't fight off infections as well...
The researchers examined fish, oysters, crabs and shrimp, and showed that all these animals have a decreased ability to fight off infection of Vibrio bacteria when subjected to low oxygen, high carbon dioxide conditions. It takes about half as much bacteria to administer a lethal dose to a creature in a low oxygen, high carbon dioxide environment. ...
"After exposure to these conditions for only a day, animals at the molecular level have given up in trying to adapt to the situation, and they are going into molecular pathways that indicate cell death," says Karen Burnett.
Might this be why Louisiana officials are avoiding doing any tests on the recent massive fish kills? See:
- STILL NO TESTS: State agency could not find “viable samples” from massive fishkills… because fish produce “oil of their own” and could be contaminated — Low oxygen blamed
- State officials did NO TESTING on ANY dead fish from the FOUR major kills near oil-impacted areas — Because they “didn’t see any oil related pollution” (VIDEO)
- Scientists find “areas in the water column where there is NO OXYGEN” (VIDEO)
- State biologist claims massive fish kills “are NOT a concern” — Then says could be from oil-eating microbes, “I don’t know” (VIDEO)
- “MILLIONS”: Fishermen and local officials get real over fish kills (Compilation Video)
- Official: 100 local fisherman say “NO WAY” massive fish kills from just low oxygen — “ALL areas happen to have HEAVY OIL”
- Reporter: Massive fishkill so thick looks like “a gravel road” — NO TESTING to see if from oil spill (VIDEO)