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anonymous

  • one year ago

Zebra Mussels The zebra mussel is a nuisance species that has been invading U.S. lakes since 1988. Native to Eastern Europe and Asia, it probably entered the Great Lakes on a commercial ship. That event delivered the mussel to a new environment where it has no natural enemies to control its growth. In less than 10 years, it spread to 19 states, ranging from Canada to the Gulf of Mexico and concentrating in the eastern half of the country. This species causes widespread and costly damage to the environment and industries.

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  1. anonymous
    • one year ago
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    whats your question?!?!?!?!?!?!? :)

  2. anonymous
    • one year ago
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    wait a minute I have to post the whole article @20brown.kattie

  3. anonymous
    • one year ago
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    How they spread The spread of zebra mussels across the U.S. is facilitated by boats that go from one lake to another. The mussels attach themselves to the bilge or to live-bait wells and are transported to another lake. There, they take over space from native mussel species, disrupting the native species' ability to feed, grow, breathe, and reproduce, and causing many of them to become endangered. For example, clams have nearly disappeared from parts of Lake Erie

  4. anonymous
    • one year ago
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    The damage As this species grows, it threatens the microscopic aquatic plant and animal life necessary to maintain lakes' ecosystems. The mussels often clog intake pipes, damaging water supplies and industrial processes. One paper company had to spend $1.4 million to clear its intake pipe of zebra mussels.

  5. anonymous
    • one year ago
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    Preventing the spread It's extremely difficult to kill these mussels once they have contaminated an area. Chlorine, for example, will kill them, but would also be toxic to the whole marine ecosystem where they thrive. So, preventing their spread is key to containing their increasing presence in our water bodies. People who take boats (or other watercraft) into lakes should take several precautions to keep from transporting zebra mussels from one lake to another. After removing the boat from a fresh water body, boat operators should use hot water to rinse the hull. They must flush the engine, clean the bait wells, and drain standing water from the bilge, live wells, and bait buckets. Bait should not be brought from one lake, which may be infested, to another, but thrown out. All screens and water intakes must be checked for mussels, and the boat left out in dry heat for several days to kill any mussels or larvae

  6. anonymous
    • one year ago
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    What is the author's purpose in this passage? Mostly persuasive Mostly explanatory Slightly persuasive

  7. anonymous
    • one year ago
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    Mostly explanatory. i believe :)

  8. anonymous
    • one year ago
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    thank you : )

  9. anonymous
    • one year ago
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    no problem anytime:)

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