Effects of Zebra and Quagga Mussels Introduced into a Freshwater Lake

May 11th, 2015
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Stanford University
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For each assignment, you will use the M.U.S.E. link to complete the lab. In this lab, you will determine how an invasive species—the zebra and quagga mussel—affects other species in the freshwater lake. Use the animation to help you come up with an answer to the following: Why do you see increases and decreases in the invasive species population? What are the implications associated with these alterations to the ecosystem as a whole? The Effects of Zebra and Quagga Mussels Introduced into a Freshwater Lake As you have learned, population dynamics are caused by the biotic potential of the population and the effects of environmental resistance. When there is minimal environmental resistance impacting a population, it will exhibit a population explosion. One reason for minimal resistance could be factors that no longer regulate a population (e.g., predator decline or resource increases). Another reason for a population explosion is the introduction of an invasive species. Invasive specie

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Impacts of Invasive SpeciesSome invasive species are naturally sprinkled from other animals and plants. Such alien species are very dangerous for the environment of forests as well as freshwater lakes. These invasive species make life difficult for other native species like native fishes under water and plants on land. By this diversity of invasive species states suffer big loss economically like the revenue earned from fishing and prawns. In oceans when ship is unloaded and going on other port or city to collect some material, the captain of ship load the bottom of ship with lot of water to keep the ship in balance and with this water, thousands of species are filled in the bottom of ship. And when shipmen go to other side and now it's their turn to fill cargo material in ship, they unload the water from ship on that port and load the ship with material and they come back to their side. In this whole procedure invasive species are transported from one side to other and become alien on other side. Mostly such species are harmful for other native species and keep their life in danger [John P. Refferty (2014)]. The Zebra mussels were first found in Poland areas. They were created through the above procedure of shipping. They had spread in infinite numbers in all big lakes in 1990 and grown rapidly throughout the lakes. Today they have expanded further all over the world [Meridian Intiative (2012)].The Quagga mussels look like Zebra mussels and these both sp

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