Scientists are trying to control the mussels. Zebra mussels get their name from a striped pattern commonly seen on their shells, though it is not universally present. They are usually about the size of a fingernail, but can grow to a maximum length of nearly 2 in (5.1 cm).
https://en.wikipedia.org/wiki/Zebra_mussel
1 Larval fish and native mussels rely on this same plankton to survive. 2  Zebra mussels also clog pipes by forming colonies inside of the pipes. Then the water cannot flow through the pipes as easily.  Nationwide expenditures to control zebra mussels in electric generating plants are estimated at $145 million/year.
http://ksoutdoors.com/Fishing/Aquatic-Nuisance-Species/Aquatic-Nuisance-Species-List/Zebra-Mussels
Unlike native mussels, zebra mussels do not require a host fish to reproduce. Most zebra mussel produce about 100,000 eggs a year; however, a large female is capable of producing 1 million eggs during the reproductive season. Once fertilized, eggs develop into microscopic veligers.
http://ksoutdoors.com/Fishing/Aquatic-Nuisance-Species/Aquatic-Nuisance-Species-List/Zebra-Mussels
Natural adhesive systems of marine mussels, Mytilus edulis (INL research and development). (PDF, 176 KB), on the blue mussel byssus thread. Apart from the foot, two siphons can be seen, as soon as the mussel opens its shell halves wide enough. A mussel will do so only under water, to breathe and to feed. Like other bivalves, mussels also are filtrators that take oxygen from the surrounding sea water to breathe as well as food particles. In doing so, mussels make a very important part in preserving the ecosystem of the Wadden Sea: Each individual mussel filters about 2 to 3 litres of sea water per hour. Taking into account the falling dry of mussels during low tide, that makes about 10 to 20 litres of sea water per day and mussel.
http://www.molluscs.at/bivalvia/common_mussel.html
The common mussel is a most astounding form of life: In the Wadden Sea common or blue mussels may assemble to form colonies or mussel beds kilometres in size, millions of individual beings covering the sea floor.
http://www.molluscs.at/bivalvia/common_mussel.html
1 If these chemicals were used in an open lake they would also affect fish and native mussels.  In Virginia, zebra mussels were eradicated from a small lake. Costly, and detrimental to native mussels, this represents the first successful eradication of zebra mussels in the wild and may be used in the future.
http://ksoutdoors.com/Fishing/Aquatic-Nuisance-Species/Aquatic-Nuisance-Species-List/Zebra-Mussels
1 Zebra mussels also clog pipes by forming colonies inside of the pipes. Then the water cannot flow through the pipes as easily.  Nationwide expenditures to control zebra mussels in electric generating plants are estimated at $145 million/year.
http://ksoutdoors.com/Fishing/Aquatic-Nuisance-Species/Aquatic-Nuisance-Species-List/Zebra-Mussels
The Situation: Quagga and zebra mussels are aquatic invasive species that are native to eastern Europe. The quagga mussel originated from Dnieper River drainage of Ukraine. The zebra mussel was first described from the lakes of southeast Russia and its natural distribution also includes the Black and Caspian Seas.
http://cisr.ucr.edu/quagga_zebra_mussels.html
From their first appearance in American waters in 1988, zebra mussels have spread to a large number of waterways, including Lake Simcoe in the Great Lakes region and the Mississippi, Hudson, St. Lawrence, Ohio, Cumberland, Missouri, Tennessee, Huron, Colorado, and Arkansas Rivers. Today, the invasion continues.
https://en.wikipedia.org/wiki/Zebra_mussel
The zebra mussel (Dreissena polymorpha) is a small freshwater mussel. This species was originally native to the lakes of southern Russia, being first described in 1769 by the German zoologist Peter Simon Pallas in the Ural, Volga, and Dnieper rivers.
https://en.wikipedia.org/wiki/Zebra_mussel
where do mussels come from year
Mussels come from eastern Europe. The mussels come from Eastern Europe .