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Characteristics of an estuary
 

Characteristics of an estuary

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    Characteristics of an estuary Characteristics of an estuary Presentation Transcript

    • CHARACTERISTICS OF AN ESTUARY BY: JANET C. BESAGAS
    • Three main characteristics of San Miguel Bay1. High sediment output resulting in soft, muddy substrates.Beach on San Miguel Island
    • 2. High nutrient inputs resulting in high primary, secondary, and tertiary productivity. The watershed of San Miguel Bay measures 3,320 sq. km.Bicol river watershed
    • 3. Highly variable salinity gradients resulting in floral and faunal assemblages which are tolerant of wide fluctuations in salinity.
    • OTHER CHARACTERISTICS OF AN ESTUARY
    • Estuarine Circulation
    • In Alabama, 85 species of fishare considered to be marine or estuarine
    • • Estuaries and coastal waters provide essential habitat for over 75% of the commercial fish catch and 80-90% of the recreational catch of fish.• Estuaries are among the most productive natural systems on Earth due to the mixing of nutrients from land and sea.
    • Estuaries are becomingmore and more polluted.Now there is a project goingon trying to save ourestuaries to keep themcleaner and healthier.