A new study conducted by researchers at the University of
Bordeaux in France purports to reveal that oysters may be feeling stressed due
to underwater noise pollution. Results of the study, conducted with 32 oysters
in a laboratory, were published in the peer-reviewed scientific journal PloS
One (don’t miss the ‘Swimsuit Edition,’ published each spring!). Researchers
found that oysters will close their shells when exposed to low-frequency noises
such as those emitted by cargo ships, explosions, and underwater oil
exploration.
Scientists say that, under optimal
conditions, “relaxed” bivalve mollusks like oysters will keep their shells open
and let their flesh hang out exposed. When stressed, however, these shamelessly
slutty crustaceans apparently clam up like a witness asked to testify in a
Clinton scandal. Researchers are worried that closing their shells to filter
out the racket could prevent the oysters from perceiving important biological
clues. Jean-Charles Massabuau, one of the study’s authors, stated that oysters
“must be able to ‘hear’ breaking waves and water currents” which could trigger
their biological rhythms.
Since these mollusks are
bottom-feeders (much like some members of the mainstream media), and filter the
water, researchers are concerned that stressing them out may stunt their growth
and lead to reduced water quality.
Granted, no one wants to strain
their mussels, myself included, but I’m not buying into the results of this
study.
First off, oysters don’t have ears
and can’t “hear.” They do have hair cells on their gills, and certainly can
sense vibrations and other stimuli, however.
Secondly, zebra mussels, filter
feeders all, have exploded across North American lakes in the past few years,
and I can tell you from personal experience that no amount of underwater noise
troubles them in the least.
Thirdly, how did oysters possibly
come through World War II? There were unprecedented numbers of cargo ships,
battle ships, cruisers, destroyers, aircraft carriers, and submarines
traversing the planet, blowing each other up with incredible frequency. Explosions
in and around the world’s oceans? The likes of which the world hasn’t seen
before or since. Not to mention the massive oil slicks, or the ships themselves
falling to the ocean floor.
Moreover, what happened to the
concept of animals adapting to their environment? Has science discarded
Darwin’s Theory of Evolution?
I believe that certain types of
pollution can- and does- pose a real threat to oysters, and other sea
creatures. But not low-frequency noise
pollution.
This study treats these mollusks as
if they were the marine version of campus “snowflakes.”
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