Exotic mussels spreading in California

December 26, 2007

Quagga mussels, an exotic species native to Ukraine that was first found in the Great Lakes 18 years ago, have been found in a fifth San Diego County reservoir.

San Diego water officials said the small, fast-growing clam, first discovered in the Southern California county during the summer, was found in "significant" numbers at Maramar Reservoir in Scripps Ranch, The San Diego Union-Tribune reported Tuesday. Quaggas apparently were transported from Europe to Lake Erie in the United States in the ballast water of oceangoing ships, the newspaper said.

The mussels grow virtually unmolested because they have no natural predators. They clog pipes and screens at power stations, water treatment plants and agricultural irrigation lines.

San Diego officials will trying to slow their spread by increasing inspections of watercraft used at Miramar Reservoir, said Arian Collins of the city's water department. Other reservoirs in the county also have imposed tighter restrictions.

Copyright 2007 by United Press International

Explore further: Study: Next US president must act fast on Colorado River

Related Stories

Study: Next US president must act fast on Colorado River

October 31, 2016

The next U.S. president will have to act quickly to chart a course so the Colorado River can continue supplying water to millions of city-dwellers, farmers, Indian tribes and recreational users in the Southwest, according ...

Climate Warming to Shrink Key Water Supplies Around the World

November 16, 2005

In the looming future, global warming will reduce glaciers and storage packs of snow in regions around the world, causing water shortages and other problems that will impact millions of people. That is the conclusion of researchers ...

Time is now for a new revolution in urban water systems

February 19, 2014

As California grapples with what state water officials have called a drought of "epic proportions," UC Berkeley urban-water expert David Sedlak has been watching for signs that people are ready for a water revolution.

3-D model shows big body of water in Earth's mantle

February 8, 2007

A seismologist at Washington University in St. Louis has made the first 3-D model of seismic wave damping — diminishing — deep in the Earth's mantle and has revealed the existence of an underground water reservoir at ...

Recommended for you

Giant radio flare of Cygnus X-3 detected by astronomers

December 7, 2016

(Phys.org)—Russian astronomers have recently observed a giant radio flare from a strong X-ray binary source known as Cygnus X-3 (Cyg X-3 for short). The flare occurred after more than five years of quiescence of this source. ...

Blocks of ice demonstrate levitated and directed motion

December 7, 2016

Resembling the Leidenfrost effect seen in rapidly boiling water droplets, a disk of ice becomes highly mobile due to a levitating layer of water between it and the smooth surface on which it rests and melts. The otherwise ...

Cosmic dust found in city rooftop gutters

December 7, 2016

(Phys.org)—A small team of researchers with Imperial College London, the Natural History Museum in London, Project Stardust in Norway and Université Libre de Bruxelles in Belgium, has found samples of cosmic dust in the ...

New evidence for a warmer and wetter early Mars

December 7, 2016

A recent study from ESA's Mars Express and NASA's Mars Reconnaissance Orbiter (MRO) provides new evidence for a warm young Mars that hosted water across a geologically long timescale, rather than in short episodic bursts ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.