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Decline of oysters in chesapeake bay
Essay an overview of the history of Chesapeake Bay pollution
Essay an overview of the history of Chesapeake Bay pollution
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The Chesapeake Bay is the largest estuary in the United States. It holds 18 hundred trillion gallons of water. The Bay is about 200 miles long, and is home to more than 17 million people. The importance of the Chesapeake Bay is incredible; two of the United States’ five major North Atlantic ports – Baltimore and Hampton Roads – are on the Bay. (Chesapeake Bay Program, n/d). The Chesapeake Bay provides shelter and food to all living things in the surrounding area. Both, people and animals, use the Bays resources every day and have done so for centuries.
One of the Bays biggest resources is its oysters. Oysters are filter feeders which mean they feed on agley and clean the water. The oysters feed on agley and other pollutants in the bay turning them into food, then they condense the food down to nutrients and sometimes developed pearls. Filtering the water helps the oysters to grow, and also helps clean the Chesapeake Bay. One oyster can filter 50 gallons of water a day, Oysters used to be able to filter the Bay in about a week. However, these creatures are now scarce in the bay. The Chesapeake Bays Oyster (crassostrea virginica) Population has declined severely because of over harvesting, agricultural runoff, and disease. Now the Chesapeake Bay is becoming polluted without the oysters and the water is not nearly as clean as it once was. The Chesapeake Bay was the first estuary in the nation to be targeted for restoration as an integrated watershed and ecosystem. (Chesapeake Bay Program n/d). This report will show the cause and effect of the Chesapeake Bay's Oyster decline on the Bay.
The Chesapeake Bay means ‘Great shellfish Bay’ in Algonquin(Chesapeake Bay Foundation 2010). The bay was once plentiful with Oysters dating back...
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...vide the businesses income and profit. Because the decline of oysters, Virginia and Maryland lost more than 4 billion dollars in annual losses over the last three decades. Many people lost their jobs, and business had to shutdown.
Works Cited
Chesapeake Bay Foundation.(2010). saving a national treasure
Chesapeake Bay Foundation. (2010). striking back against the Oyster Thieves
Chesapeake Bay Foundation. (n/d). Agriculture
Cronin, L. Eugene. (1986). Fisheries and Resource Stress in the 19th Century
Kennedy, Victor S. and Kent Mountford. (2001). Human Influences on Aquatic Resources in the Chesapeake Bay Watershed
Stratchy. (1953). The Historie of Travell into Virginia Britania
Chesapeake Bay Program. (n/d). Facts & Figures
Dr. Henry M. Miller. (n/d). The Oyster in Chesapeake Bay History
Virginia Institute of Marine Science. (n/d). Dermo Fact Sheet
Parliament of Canada. (n.d.). Northern Cod: a failure of Canadian fisheries management. Retrieved June 17, 2014, from Parliament of Canada: http://www.parl.gc.ca/HousePublications/Publication.aspx?DocId=2144982&Mode=1&Parl=38&Ses=1&Language=E&File=21
Over the past 100 years the Louisiana coastline has suffered greatly from biotic, abiotic, and anthropogenic factors. The abiotic factors include things such as hurricanes or overnutrition that influence the surrounding biota. The biotic factors that contribute to coastal erosion are things like the immigration invasive species and the emigration or extinction of local flora and fauna that help preserve the wetlands. Additionally, there are anthropogenic factors such as pollution that can have strong negative influences on the abiotic and biotic factors of the wetlands. Each one of these factors cause ecological disturbances to the wetlands at a frequency and intensity that is unmanageable for the local flora and fauna. There are currently certain measures that are being taken into consideration to slow or stop the erosion of the Louisiana coastline.
This ad is directed to many people in the Chesapeake Bay region because there are tons of pollution each year that are destroying the nation’s largest estuary, or part of a body of water where the fresh and salt water mix, and are also killing the Bay’s crabs, oysters, and fish, which is a huge industry in the area and also something the state of Maryland is known nationally for (Environment, p. 8). Pollution is destroying the Chesapeake Bay every single day, however now people are taking steps in the right direction to fix this problem but many people fear that time has run out.
They also look after the quality of coastal waters by watering down, sifting, and settling deposits, left-over nutrients and contaminants. They are highly productive ecosystems and provide habitats and act as nurseries for all manner of life.
Being found in a Mid-Atlantic state but south of the Mason Dixon line Maryland can lay claim to a blend of Northern and Southern American traditions. Maryland has been influenced by English, American, and African American cuisine. Seafood is a prime ingredient in Maryland cuisine and is also the state's primary food product. Harvesting seafood in the Chesapeake Bay dates back to the Indians. Many Indians preserved their catches for winter by salting or smoking them. Chesapeake Bay oysters have been eaten for centuries. The Patuxent River has been an importan...
Gloucester Massachusetts is known for its fishing industry. Over 1200 people’s jobs in Gloucester lay in the fishing industry. The fishing industry first derived when people from Europe came over looking for a better life. Gloucester is America’s oldest seaport, and now it is fighting to survive. Now with new rules, and diseases in the sea, the fishing industry will never be what it was decades ago.
The Chesapeake Bay is the nation’s largest estuary with six major tributaries, the James, the Potomac, the Susquehanna, the Patuxent, the York, and the Rappahannock Rivers, feeding into the bay from various locations in Maryland, Virginia, Pennsylvania, and the District of Columbia (Chemical Contaminants in the Chesapeake Bay – Workshop Discussion 1). These areas depend on the Bay as both an environmental and an economic resource. Throughout the last 15 years the Chesapeake Bay has suffered from elevated levels of pollution. Nitrogen and phosphorous from wastewater treatment plants, farmland, air pollution, and development all lead to reduced water clarity and lowered oxygen levels, which harm fish, crabs, oysters and underwater grasses (Key Commission Issues 1). There are other types of pollution in the bay such as toxic chemicals, but because nutrient pollution is the most significant and most widespread in the Bay its effects are the most harmful to fisheries. Nitrogen and phosphorous fuel algal blooms which cloud the water and block sunlight from reaching underwater grass beds that provide food and habitat for waterfowl, juvenile fish, blue crabs, and other species (Blankenship 11-12). Algae plays a vital role in the food chain by providing food for small fish and oysters. However, when there is an overabundance of algae it dies, sinks to the bottom of the Bay, and decomposes in such a manner that depletes the oxygen levels of the Bay (11). The reduced oxygen levels in the Bay reduce the carrying capacity of the environment and these “dead areas” sometimes kill off species that can not migrate to other areas of the Bay, such as oysters (11). Increased abundance of algal blooms also led to the overabundance of harmful and toxic algae species and microbes such as the microbe Pfiesteria, which was responsible in 1997 for eating fish alive and making dozens of people sick (12). The heightened awareness of diseases that can be contracted through consumption of contaminated fish also has an economic impact. Therefore, the excess levels of nitrogen and phosphorous have fueled an overabundance of algal blooms, which has reduced water clarity and lowered oxygen levels, affecting many species within the bay and ultimately the industries that rely on these species.
For many years now scientists and researchers have been paying their attention to the bay. Millions of dollars and hundreds of hours have been spent to return the bay to its glory. However, with all that has been done the bay is still in danger and the work is no where near complete. In 2005 the bay's health was evaluated at a “D”. (Chesapeake Bay Restoration)
The Long Island Sound is an estuary, and is in fact one of the largest in the world. An estuary is a place where salt water from the ocean mixes with fresh water from the rivers that drain from the land. Moreover, like other estuaries, the Long Island Sound has an abundance of fish and other waterfowl that add to the natural balance of the island, as well as one of the most important economic factors (Tedesco). Like other estuaries around the world, the Sound provides breeding, feeding, nesting, and nursery areas for many species that will spend most of their adult lives in the oceans (Long Island Sound Study). Despite these similarities to other estuaries, the Long Island Sound is unique from anywhere else in the world. Unlike other estuaries, the Long Island Sound does not just have one connection to the sea but it has two. It has two major sources of fresh water flowing into the bay that empty into the ocean. It combines this two-...
... the residual effects of pollution left behind by both mining in the Chesapeake Bay area around rivers, such as the Susquehanna River in Pennsylvania, that feed into the Chesapeake Bay. Lutz also had quoted John Dawes, now the executive director of the Foundation for Pennsylvania Watersheds, on the damage done to streams and to the aquatic life in the streams. Dawes told Lutz "'we're looking at 4,600 miles of dead streams in Pennsylvania'" in reference to the vitality in polluted regions. This can occur in several ways but the two generally accepted causes are the toxicity levels in the water are too high to support life and the contaminated water is slowly killing off members of the food chains for the aquatic life. In either theory, the death of fish and their food chain caused by AMD is impacting the billion dollar fishing industry that calls Chesapeake Bay home.
Globally coastal wetlands are disappearing at an alarming rate, the problem is most of society does not realize the value of these precious wetlands. Coastal wetlands provide an important role in the coastal ecosystem. “Coastal wetlands provide critical services such as absorbing energy from coastal storms, preserving shorelines, protecting human populations and infrastructure, supporting commercial seafood harvests, absorbing pollutants and serving as critical habitat for migratory bird populations”(Anonymous, 2011). Coastal wetlands are an economical asset as well as an environmental one.
...tlanticcity.com>. Irwin, Neil. "Environmental groups pressure chefs on menus." Washington Post June 19, 2002. April 26, 2011 Miller, Michael. "Group says it won't move oyster farm to Delaware Bay" Press of Atlantic City, The. August 3, 2010. Press of Atlantic City online. Atlantic Cape Community College, Mays Landing, April 26, 2011 National Sea Grant Law Center. California Enacts Sustainable Oceans Act. 2006. University of Mississippi April 28, 2011. Naylor, Rosamon L.
Smith, Zachary A., and Grenetta Thomassey. Freshwater Issues: A Reference Handbook. Santa Barbara, CA: ABC-CLIO, 2002. Print
The oceans need to be protected because it is where life began and if not taken care of, life as we know it will end. When dangerous substances go into the ocean, ecosystems are suffer and become endangered along with lives of people and of marine life. Surfrider Foundation recognizes the importance of protecting and preserving the quality and biodiversity of the world's coasts because they are truly irreplaceable. There is also historical evidence of ocean pollution being present in the past, but the problem still lingers today. Heal the Bay discovered that,“Did you know there is a DDT and PCB hot spot off the coast of Palos Verdes? This superfund site (which indicates it's one of the most polluted places in the United States), is left over from a 1930's era chemical plant. Because DDT takes so long to break down in the marine environment, it persists to this day, contaminating certain species of fish. There are also highly polluted sediments in the Long Beach area, a sign of the heavy shipping in the port. Heal the Bay works on developing effective capping and removal plans to keep those toxins from spreading” (Heal the Bay). DDT is still highly concentrated in the South Bay area and still contaminating different species of fish. Even after more than 80 years DDT, a toxic insecticide, is still very concentrated and during upwellings, DDT particles come back up and continue to harm marine life. If humans are careless about what is thrown on the floor or sprayed on lawns, it can lead to disastrous affects when it comes to the condition of the ocean's ecosystems, and can endanger life itself leading to a problem that only we can mend.
Rogers, Peter. 2008. "Facing the Freshwater CRISIS. (Cover story)." Scientific American 299, no. 2: 46-53. Academic Search Premier, EBSCOhost (accessed November 4, 2010).