[Chat] Fwd: Zebra Mussels

Tue Jan 8 19:05:39 EST 2013

fyi

-------- Original Message --------
Subject: 	Zebra Mussels
Date: 	Mon, 07 Jan 2013 11:50:50 -0600
From: 	Baltimore Public Works <baltimorecity at alerts.baltimorecity.gov>
Reply-To: 	Baltimore Public Works <baltimorecity at alerts.baltimorecity.gov>
To: 	jdydee at verizon.net

Zebra Mussels
dpw
FOR IMMEDIATE RELEASE
[[Monday, January 7, 2013]]
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/*Zebra Mussels*/

/**//*Please help keep them out of our reservoirs. */**

**

*BALTIMORE, MD (January 7, 2013) *– The Maryland Department of Natural 
Resources (MDNR) reports that zebra mussels (/Dreissena polymorpha/) 
have now spread to the upper Chesapeake Bay. This freshwater mollusk, 
native to eastern Europe, has rapidly proliferated throughout North 
America after first being spotted in the Great Lakes in the late 1980s.

Mature zebra mussels grow to two inches in length and usually have a 
striped pattern, thus their name.   Females can produce up to 1,000,000 
eggs per year. These eggs are carried by currents and can easily infest 
other bodies of water. The mature mussels attach themselves to boats, 
and those boats can spread the mussels to other bodies of fresh water.

*Why are they a concern?*

Just as with any plant or animal invasive species, zebra mussels can 
have a devastating impact on native wildlife. They colonize in large 
clusters, including on slow-moving aquatic creatures like crayfish, 
clams and turtles. In some cases the host animal does not survive.

Zebra mussels are filter feeders, rapidly removing algae from water. 
While this improves water clarity, it can be harmful to fish and other 
aquatic life that depend on algae as a principal food source.

These mollusks also colonize water intake pipes. If they enter 
Baltimore’s Liberty, Loch Raven and Prettyboy Reservoirs, they can 
restrict the water flow to our municipal treatment plants. Physical and 
chemical removal of them can be done; however it is costly and 
time-consuming. Zebra mussels can also create navigational hazards and 
damage piers, docks and bridges.

**

*What can you do to prevent their spread?*

The Department of Public Works has long-anticipated the possibility of 
this infestation’s approach, and we have taken steps to address many of 
the consequences that may result from it. Unfortunately, at this time, 
there are no available means to eliminate zebra mussels once they arrive 
in a body of water.

*/Prevention/*is crucial to keeping our reservoirs free of zebra 
mussels.   Please act responsibly to stop the introduction of zebra 
mussels into Liberty, Loch Raven, and Prettyboy Reservoirs.

  * If you boat in our reservoirs, please do not use your watercraft in
    any other waters except the three City reservoirs. Due to the
    potential for zebra mussel contamination, boaters on Liberty, Loch
    Raven and/or Prettyboy Reservoirs must sign an affidavit stating
    that their boat will be used /only on these reservoirs/. Permits are
    also required.

  * Only use aquatic bait purchased from a MDNR-certified, zebra
    mussel-free bait store. Do not use live aquatic bait that you have
    caught yourself. Do not transfer bait water between bodies of water.

  * Never release wildlife of any sort, land or aquatic, at our reservoirs.

*To learn more about zebra mussels and about our reservoirs please visit 
us at www.baltimorecity.gov 
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*

**

**### **

Contact:
Kurt KocherTiffani Church
Telephone: 410-545-6541Telephone: 410-545-6541
email: kurt.kocher at baltimorecity.gov 
<mailto:kurt.kocher at baltimorecity.gov><mailto:kurt.kocher at baltimorecity.gov> 
email: tiffani.church at baltimorecity.gov 
<mailto:tiffani.church at baltimorecity.gov>

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