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Fiddler crab holes changing course due to residual oil in sediment.

Fiddler crab holes changing course due to residual oil in sediment.
Fiddler crab holes changing course due to residual oil in sediment.
Fiddler crab holes changing course due to residual oil in sediment.
Fiddler crab holes changing course due to residual oil in sediment.
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369383
Oberlander, E. Paul
Fiddler crab holes changing course due to residual oil in sediment.
Illustration
04/23/2007
Fiddler_crab.jpg
Caption from Oceanus magazine, Vol. 45, No. 3, Pg. 29:
Scientists made plaster of Paris casts (below) of fiddler crab burrows in Great Sippewissett Marsh, which did not receive oil from a 1969 spill, and in nearby Wild Harbor, which did. The Sippewissett burrows were straight and deep. Burrows in Wild Harbor did not descend as far and were stunted. The crabs appeared to turn back when they encountered oil.
Oceanus online caption:
Scientists made plaster of Paris casts of fiddler crab burrows in Great Sippewissett Marsh in Falmouth, Mass., which did not receive oil from a 1969 barge spill, and in nearby Wild Harbor, where oil from a 1969 barge spill remains buried beneath a pristine-looking surface. The Sippewissett burrows were straight, with average depths of 14.8 centimeters. Burrows in Wild Harbor areas with residual oil descended an average of only 6.8 centimeters and were stunted. The crabs appear to turn back when they encounter oil.
Illustration by E. Paul Oberlander
© Woods Hole Oceanographic Institution
http://www.whoi.edu/oceanus/viewArticle.do?id=25568
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