coastlines of the gulf of mexico
DESCRIPTION
Coastlines of the Gulf of Mexico. Louisiana, Alabama, Mississippi. State Louisiana Mississippi Alabama. Tidal Shoreline(mi) 7721 359 607. Shoreline Characteristics. Island Morphology. Barrier Island Chain -created after last glacial epoch (15,000yr ago) -decrease in sea level - PowerPoint PPT PresentationTRANSCRIPT
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Coastlines of the Gulf of Mexico
Louisiana, Alabama, Mississippi
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Shoreline Characteristics
StateLouisiana
Mississippi
Alabama
Tidal Shoreline(mi)7721
359
607
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Island Morphology
Barrier Island Chain-created after last glacial
epoch (15,000yr ago)-decrease in sea level-increase in fluvial and
marine sedimentation-microtidal (0-2m)-extensive tidal marsh
habitat
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Coastal Features and Waterways
Louisiana Rivers-Atchafalaya, Mississippi, PearlAlabama
Rivers-Alabama, Tom Brigbee, Mississippi
Rivers-Pearl
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Recent Developments
• Dramatic increases in nutrient loads-eutrophication-decreases in primary productivity
-Wetland habitat in rapid decline-decrease in water quality-losses to commercial fishing
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Governmental Response
• Total Maximum Daily Load (TMDL) -assessment of pollutants in major rivers-management plan to improve water qualityEstuarine Reserve Program-modeling of individual systems-protection from development
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References
http://marine.usgs.govhttp://mfengine.nos.noaa.govhttp://eol.jsc.nasa.gov/sseop/clickmap.htmlhttp://infoplease.lycos.comhttp://www.epa.gov/owow/ estuarieshttp://www.epa.gov/owow/tmdl/ stateshttp://www.rodnreel.com/tides
Maps-US Atlantic and Gulf Coast (NOAA)
Publications-EPA, The Ecological
Condition of Estuaries in the Gulf of Mexico