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028-Mangroves - A diverse group of trees that are salt...

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A diverse group of trees that are salt tolerant (halophyte) and are viviparous . shallow and protected tropical and subtropical regions restricted to intertidal and adjacent marine habitats temperature range: 10 o C to 20 o C
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Open ocean <50 g C/m 2 /year Coral reefs 1000 g C/m 2 /year Mangroves 500 g C/m 2 /year Continental Shelf: Nonupwelling 200 g C/m 2 /year Coastal upwelling 300 g C/m 2 /year Seagrass beds 1000 g C/m 2 /year Estuaries and salt marshes 800 g C/m 2 /year Upwelling 300 g C/m 2 /year
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A few mangrove species can survive in freshwater, but are not good competitors with other species. Mangroves have a high salt tolerance. They can survive well in 90% o soil salinity. The ocean averages 35 % o. They need to prevent water loss by either: 1. excrete salt at leaves 2. exclude salt at roots 3. salt excretion and abscission (remove of salt laden organs) Salt Tolerance: What would happen if you watered your garden with salt water?
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wave action: windward (more tidal flush) vs. leeward
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