You Don't Have to Have Big Mussels to
Have an Impact!
In fact you can be a tiny golden mussel, about an
inch in length, and have a really big impact. The golden mussel is an invasive
species from China that is slowly making its way closer to one of the world's
most biologically diverse regions, the Amazon River. The Amazon has more
freshwater fish species than any river in the world and it also has the right
temperature, calcium levels and acidity in which golden mussels thrive. These
little mussels are already a big nuisance in five other South American
countries with their ability to clog pipes and shut down turbines requiring hydroelectric
plants to find ways to scrape them out or use chemicals to be rid of them at
the cost of millions of dollars annually. The mussels do provide food for ducks
and local fish but this benefit is outweighed by the negatives including the alteration
of phosphorous and nitrogen levels in the water that produces blooms of toxic
algae that can be deadly to aquatic creatures and humans. The
little mussels have also had a devastating deadly effect on native clam species
by attaching themselves onto the local mollusks, sealing them shut. For the
past decade, Brazil has been working to stop the spread of the golden mussel by
requiring ships headed to Brazilian ports to stop at least 200 miles off the
coast and empty the ballast waters while far at sea so the larvae stay far out
to sea. This hasn't been effective in stopping the golden mussel so researchers
are looking into mapping the mussel's genome and engineering a virus or other
"bio-bullet" that could essentially render the species infertile. The
race between science and the invasive little mussels is on.
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