Announcement: First record of the invasive diatom Didymosphenia
geminata in the Pine Creek watershed, Lycoming County PA.
Pennsylvania Department of
Environmental Protection (DEP) Biologists have, as a result of routine
monitoring, detected the presence of the invasive diatom Didymosphenia
geminata, also known as Didymo, in the Pine Creek watershed, Lycoming
County PA. Representative specimens were sent to The Academy of Natural
Sciences of Drexel University where Dr. Marina Potapova confirmed DEP’s
identification.
Living Didymo diatoms were obtained
on June 18, 2013 from Pine Creek at a location upstream of Waterville in the
vicinity of the Hamilton Bottom Canoe Access Area; Lycoming County. This
represents the first evidence of this invasive diatom in this watershed.
In fact, prior to this discovery no Didymosphenia geminata diatoms were
known by DEP to exist in Pennsylvania waters except at verified infestations
sites in the Youghiogheny River and the West Brach/mainstem of the Delaware Rivers.
All Water Quality professionals
should take precautions against spreading Didymo by properly cleaning and
disinfecting aquatic gear prior to working in other waters. For more
information, please visit PA Fish & Boat Commission website for a fact sheet
and further guidance at: http://www.fishandboat.com/water/habitat/ans/didymo/faq_didymo.htm
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