Zebra Mussels Essay

The fem ales lay over one million eggs in one spawning. They are very effcient filter-feeders. They pull nutrients directly from the water at a very high rate. One Zebra Mussels can filter about a quart of water per day therefore, reducing the amount of phytoplankton available for other organisms like native mussels, fish and other lake animals. They out compete the native mussels species for the same resources. The Zebra Mussels filtration of phytoplankton causes a negative effect from the increased water clairity that results to the ecological structures of the lake community. However, some organisms benefit from the arrival of the Zebra Mussels. One is the red-breasted sunfish .With the increased clarity it allows in more sunlight which give more growth that provides food and shelter to other organisms that fish like to eat. But the bad out weighs the good that Zebra Mussels

Today, what once was a scenic lake is covered in chest-high weeds. “ Boaters and fisherman enjoy going to Lake Bridgeport during the summer. But in the summer of 2013 the boat ramps were unusable so the number of residents going to the lake dropped. There are dead fish floating to the shoreline as well as many other wildlife animals. The lake tested positive for Zebra Mussel larva, which is shell like creatures that are very sharp and stick to boats, anchors and docks. The Mussels are very dangerous for the lake environment, but they also eat bacteria so they could help the lake water clear up. If no water is drained out of Lake Bridgeport then the residents of Eagle Mountain Lake and Lake Worth could possibly run out of drinking water.

As well as pollution, invasive species are damaging the lake ecosystems and food chains, made fragile by pollution and overfishing. The introduction of a new species throws off the balance of food chains. Some common invasive species include the sea lamprey, Asian carp, and zebra mussels, among many others. Zebra mussels have dramatically influenced and affected stable food chains by reducing the amount of zooplankton and phytoplankton. This presents a problem, as fish mostly feed on the drifters, and so they go hungry and die, leaving no food for larger fish to prey on. In addition to underwater disruption, it affects us as well, but only slightly. Plankton and algae especially are the most productive aquatic producers of oxygen, and by the decreasing population, we lose oxygen as well. The sea lamprey is also a problem, though it is not so influential to ecosystems as the zebra mussel.

Their scientific name is Equus Grevyi. They weigh 770 to 990 pounds and around 50 to 60 inches from the shoulder. The zebras lives in the Grasslands and the Savannas and can live

     Colonization by zebra mussels has devastating ecological impacts on native bivalves (Mackie, 1991; Haag et al., 1993), frequently driving them to local extinction. Zebra mussels readily, perhaps preferentially, settle on native bivalves and eventually cover them over. They filter the water so efficiently that they can lower the amount of suspended food organisms below levels needed to sustain native unionids.

Adapted for a wide range of aquatic habitats, various shark species inhabit shallow coastal habitats, deep-water ocean floor habitats, and the open ocean. With a wide selection to feed off of, as a whole the shark species feed on just about everything. Their diet consists of fish,

Mr. Jason Dickey is an aquatic ecologist with over 15 years professional experience in the assessment of freshwater ecosystems. His Masters research focused on impairment and recovery of lakes and streams across a land use gradient in the southeastern U.S. Much of his work at Cardno has focused on the measurement of surface and groundwater, biological assessment of aquatic flora and fauna, and instream habitat surveys. Jason also specializes in federally protected aquatic species and habitat and has significant project experience with Gulf sturgeon and freshwater mussels. Jason is qualified by the U.S. Fish and Wildlife Service for conducting mussel surveys in the Florida panhandle and southern Georgia and Alabama.

At the bottom of the Missouri's streams lives the Lampsilis siliquoidea mussels where it lives out its life cycle. How it lives it's brilliant life cycle is first by luring a smallmouth bass over to it by copycatting the movement and the appearance of a Tartars fish tail which is actually the skin of the mussels which has over time evolved. Once the bass notices the lure and strikes the lure the muscle spews out a white cloud into the bass's mouth and gills which happen to be thousands of larvaes where they will live off the bass for nutrients. Its also safer for them to transition from larvae into juvenile mussels. After a couple of weeks the young mussels abandon the bass dropping leaving the basses unharmed and unaware of what happened making

As reported by the USDA (United States Department of Agriculture), Eurasian milfoil, which is native to Europe, Asia, and Northern Africa, was most likely accidentally introduced to the United States through ballast water, which is water from other places that is dumped into another body of water to aid in

In the U.S., bull sharks are found in the Atlantic Ocean from Massachusetts to the Gulf of Mexico and in the Pacific Ocean off the coast of

The pornography debate has been an issue within the feminist movement that has been pushed to the periphery in recent times. It is not as widely seen on the main stage of the feminist agenda and this may be because of a division in feminist thought with regards to pornography. Generally speaking, there are “pro-sex” feminists who believe that women have the right to do what they wish with their bodies and there are “pro-censorship” feminists who believe pornography is inherently degrading and violent towards women. In this paper I am going to discuss the views and opinions held by each faction of the pornography debate and I will discuss the pros and cons of each view and discuss how every day women (i.e. not scholars/academics) feel about pornography.

Since the moment we were born, our elders told us that we were all special in our own ways but the education system argues against that statement. When students are tested in the same way, some students out shine others due to the way they learn, while others are left feeling less intelligent. The education system is ruining the confidence in many of our children today, making some feel less important than others. This aspect is one of the many flaws in the system today. We as a nation should make an effort to make the children of the future feel important rather than destroying their self-esteem. We should not make them feel like they cannot accomplish their dreams due to a disability they could not escape. They are the future of this country, the ones to live on and continue to make this country great. Why should students have to study harder than others in order to pass the classes required to progress? This country is all about equal rights

Sharks are one of the most feared carnivores in the sea. There are 365 species of of sharks in the sea as we know today. All sharks are carnivores. Most of them eat live fish, including other sharks. A shark's most common natural enemy is an another shark. Most sharks eat their prey whole, or they tear off large chunks of the bodies. Some sharks crush their prey. Others take out small pieces off flesh from large fish. Sharks also feed on dead or dying animals. Sharks have the reputation of attacking human beings. But less than 100 shark attacks a year are reported throughout the world. Sharks are most common in warm seas and oceans. Whale sharks, are the largest shark known to man. Sharks are classified in the order

The marbles of Greece's Parthenon have been situated in the British Museum for more than 150 years. The Elgin Marbles are stated to continue to be the focal points of an ongoing debate that will ultimately determine the historical influence of a particularly important culture. The Parthenon Marbles are reported to constitute "a unique case in that they form part of a unique historical monument which for humanity, and international public opinion, symbolizes civilization and democracy, but for the Greek people much more than that. For the Greek people they symbolize our history and the continuity of the Greek nation." (TED Case Studies, nd, p.1)

However, many fisherman are unable to catch as many fish as they used to, so they are increasingly using cyanide and dynamite in fishing, which further degrades the coral reef ecosystem.[6] This perpetuation of bad habits simply leads to the further decline of coral reefs and therefore perpetuating the problem. One solution to stopping this cycle is to educate the local community about why conservation of marine spaces that include coral reefs is important.[7] Once the local communities understand the personal stakes at risk then they will actually fight to preserve the reefs. Conserving coral reefs has many economic, social, and ecological benefits, not only for the people who live on these islands, but for people throughout the world as well.