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Estuaries Payton Collins December 1 st, 2011. The Basics and Terminology  An estuary is the area in which rivers meet the sea.  One of the most productive.

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Presentation on theme: "Estuaries Payton Collins December 1 st, 2011. The Basics and Terminology  An estuary is the area in which rivers meet the sea.  One of the most productive."— Presentation transcript:

1 Estuaries Payton Collins December 1 st, 2011

2 The Basics and Terminology  An estuary is the area in which rivers meet the sea.  One of the most productive ecosystems in the world.  Estuaries are partially enclosed.  Seawater mixes with freshwater, nutrients, and pollution from rivers, and streams and land runoff.  Must be adaptable to daily and seasonal changes in tidal and river flows, and land runoff of eroded soil sediment and other pollutants.  Salinity alone can increase or decrease 20% in a season.

3  Coastal wetlands are land areas covered with water all or part of the year.  Found around estuaries  Examples include river mouths, inlets, bays, sounds (narrow stretches of water forming an inlet or connecting two wider areas of water such as two seas or a sea and a lake), salt marshes (in temperate zones), and mangrove forests (the tropical zone equivalent of salt marshes). More on Marshes

4 Estuaries in the United States

5  88,000+ miles of coastal wetlands  100+ estuaries  Louisiana- home to 40% nation’s coastal wetlands  Chesapeake Bay – nation’s largest estuary  This estuary alone supports more than 3,600 species of plants, fish and animals. U.S. Estuaries

6  Typical animals in estuaries~  Shellfish (oysters, crabs, lobsters)  Shore and sea birds  Raccoons, skunks, opossums (attracted by plants and animals)  Typical plants in estuaries~  Salt meadows  Mangroves  Cordgrass Biodiversity

7  Estuaries provide ecological and economic services~  Filter toxic pollutants, excess plant nutrients, sediments, and other pollutants.  Reduce storm damage; absorb waves and store excess water produced by storms and tsunamis.  Provide food, habitats, and nursery sites for a variety of aquatic species. Benefits from Estuaries

8  Global Climate Change  Algal bloom, invasive species, estuary climate/water temperature changes  Pollution from upland areas  Dams block nutrient flow  Extreme weather conditions  Floods, hurricanes, storms Environmental Damage to Estuaries

9  Currently developed/developing solutions~  Enhancing the natural defenses provided by wetlands, barrier islands and reefs.  Supporting the natural replenishment of sediments from rivers and beaches.  Protecting inland buffers to enable habitats to migrate. How Can We Help?

10  Florida Department of Environmental Protection (DEP). (2010). Salt Marshes. Retrieved from http://www.dep.state.fl.us/coastal/habitats/saltmarshes.ht m  Miller, Jr. G. T. (2007). Living in the Environment: Principles, Connections, and Solutions (15 th ed.). Belmont, CA: Thomson Higher Education.  Southern California Coastal Water Research Project (SCCWRP). (2011). Project Group: Coastal Wetlands and Estuaries. Retrieved from http://www.nwf.org/Global- Warming/Effects-on-Wildlife-and-Habitat/Estuaries-and- Coastal-Wetlands.aspx Citations

11  Ayub, Zarrien (2010). Effect of Temperature and Rainfall as a Component of Climate Change on Fish and Shrimp Catch in Pakistan. The Journal of Transdisciplinary Environmental Studies, vol. 9, no. 1. Retrieved from http://www.journal- tes.dk/vol_9_no_1__page_15/no%204%20%20Zarrinem%20A yub%20(high).pdf  U.S. Department of the Interior. (2007). The Role of Climate in Estuarine Variability. Retrieved from http://sfbay.wr.usgs.gov/hydroclimate/climate_role/part2.h tml  C., Tommy, and B., Kyle (n.d.). Estuary Home. Retrieved from http://biomesfourth09.wikispaces.com/Estuary+Home Citations (2)

12  National Wildlife Federation (n.d.). Global Warming Impacts on Estuaries and Coastal Wetlands. Retrieved from http://www.nwf.org/Global-Warming/Effects-on-Wildlife- and-Habitat/Estuaries-and-Coastal-Wetlands.aspx  Estuaries. (n.d.). The Encyclopedia of New Zealand (online). Retrieved from http://www.teara.govt.nz/en/estuaries/3  New Hampshire Public Television. (2011). Estuaries. Retreived from http://www.nhptv.org/natureworks/nwep6a.htm Citations (3)


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