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What A Week It Was: Apocadocuments from
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ApocaDocuments (3) matching "algal bloom" from this week
[see full week] ~ [see all stories tagged "algal bloom"]
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Thu, Nov 12, 2009
from Environmental Science and Technology:
Salt-loving algae wipe out fish in Appalachian stream
A salt-loving alga that killed tens of millions of fish in Texas has struck for the first time in an Appalachian stream that flows along the border of Pennsylvania and West Virginia. Prymnesium parvum or "golden alga" caused the sudden death of thousands of fish, mussels, and salamanders in early September along some 30 miles of Dunkard Creek. University and government scientists fear the disaster could presage further kills in the region. Streams at risk due to high concentrations of total dissolved solids (TDS) include portions of the northern branch of the Potomac River and 20 other streams in West Virginia, according to state scientists. Pennsylvania, Maryland, Virginia, and Kentucky also have many vulnerable rivers and streams, according to U.S. EPA scientists. ...
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Golden Algae is the name of my cat!
ApocaDoc
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Mon, Nov 9, 2009
from Las Vegas Sun:
Quagga mussels a toxic threat to Lake Mead
...Years before they showed up in Southern Nevada, the little mollusks colonized the Great Lakes, and researchers there have found that the rise in their quagga populations correlates with increases in dangerous toxins. There are two reasons for this: poop and algae. Quaggas can poop poison pellets and can turn swaths of open lake into algae-filled dead zones.
The scoop on the poop is this: Each mussel works like a tiny liver, absorbing toxins and heavy metals such as mercury, selenium, polychlorinated biphenyls (known as PCBs), and polycyclic aromatic hydrocarbons (or PAHs) from the lake water in a process called bioaccumulation.
But quaggas are not content to do a good deed. They later expel those chemicals and metals -- in the form of a highly concentrated pellet. Those toxic pellets sink to the lake floor. ...
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Can we introduce some little portajohns for them?
ApocaDoc
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Mon, Nov 9, 2009
from PhysOrg.com:
15,000 reasons to worry about invasive species
Candy Dailey spent a Fourth of July holiday splashing with grandkids on the sandy shore of Lake Metonga when she felt a nasty sting on her foot.... the culprit was a zebra mussel -- cuts from the razor-sharp shells have become as unremarkable as bee stings since the mussels invaded Dailey's lake eight years ago.... The natives of the Caspian Sea region first turned up in North America in the summer of 1988, thanks to overseas freighters' long-standing -- and ongoing -- practice of dumping their contaminated ballast water in the Great Lakes, which are now home to more than 185 non-native species.... Now, this ecological mess is spreading inland. ...
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Those critters will mussel in, one way or another.
ApocaDoc
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