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Problems with the watershed of chesapeake bay

Problems with the watershed of chesapeake bay






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    Problems with the watershed of chesapeake bay Problems with the watershed of chesapeake bay Presentation Transcript

    • A watershed is an area of LAND that drains to a particular river, lake, bay or other body of water. We all live in a watershed. Some watersheds, like that of your local stream or creek, are small. Others, like the Chesapeake Bay watershed, are very large.
    • Human activities affect the Chesapeake Bay ecosystem by adding pollution, using resources and changing the character of the land. However, we can make better choices in our everyday lives to lessen our footprint on the Bay ecosystem’s health…..
    • We live in the Susquehanna Watershed. It includes many rivers and streams from the Oneonta area.
    • The Susquehanna runs into the Chesapeake Bay. It is the largest contributor to the bay.
    • What is the Chesapeake Bay watershed? The Chesapeake Bay watershed stretches across more than 64,000 square miles. It encompasses parts of six states – Delaware, Maryland, New York, Pennsylvania, Virginia and West Virginia – and the entire District of Columbia. More than 17 million people live in the Chesapeake Bay watershed. The Chesapeake Bay’s land-to-water ratio (14:1) is the largest of any coastal water body in the world. This is why our actions on the land have such a big impact on the Bay’s health.
    • The Chesapeake Bay is one of the largest estuaries in the United States and is one of the most productive bodies of water in the world.
    • An ecosystem is a complex set of relationships among living and non-living things. Air, water, soil, sunlight, plants and animals – including humans – make up an ecosystem. The Chesapeake ecosystem consists of the Bay itself, its local rivers and streams, and all the plants and animals it supports.
    • All of the plants and animals in an ecosystem depend on each other in some way. For example, predators eat prey, and animals find shelter among plants. Even the smallest creatures play an important role in their ecosystem. Every living thing needs a healthy ecosystem to survive.
    • Nutrient pollution Too many nutrients in the water (called eutrophication) can fuel the growth of algae blooms. Oysters, menhaden and other filter feeders eat a portion of the excess algae, but much of it does not end up being consumed. The leftover algae die and sink to the Bay’s bottom, where they are decomposed by bacteria. During this process, bacteria consume oxygen until there is little or none left in these bottom waters.