CONTACT: Craig Cary,
Delaware Sea Grant Research Scientist, (O)
302-645-4078, E-MAIL: caryc@strauss.udel.edu
News Release
Sea Grant Research Aiming To Sink Shipworm Damage
Peer-Reviewed Publication
For centuries shipworms have feasted their way through
wooden vessels, piers, and other structures in salt
water, resulting in billions of dollars of damage.
Over the last few years, New York City alone has spent
over $100 million to brace and wrap plastic around
thousands of pilings supporting its most vital piers.
Looking to put an end to the carnage, a Delaware Sea
Grant study, coordinated by marine molecular biologist
Craig Cary, is investigating ways to make wood
unpalatable. According to Cary, "An intriguing aspect
that could offer enormous possibilities is the
shipworm's symbiotic relationship with bacteria that
allow it to digest wood. Specifically targeting this
bacteria we could arrest the worm's ability to bore."
Shipworms, which are actually clams specifically
designed for boring, have shown enormous voracity in
their destruction. "I've seen posts more perforated
than Swiss cheese. Objects once dense and heavy can be
crushed with little effort after shipworm
infestation," says Cary. Discoveries from Cary's
study could lead to the production of a new
environmentally-friendly substance that could be
applied to wood before submersion. Presently,
chemicals used for shipworm protection, such as
arsenic, copper and other heavy metals, can leech into
surrounding ecosystems, raising concern about harm to
non-targeted organisms.