TRANSITIONAL ENVIRONMENTS: ESTUARIES, SALT MARSHES, MANGROVE FORESTS, FRESHWATER WETLANDS Flashcards
Are found whenever rivers meets the sea
Estuaries
Are concentrated along low-lying coasts with sandy shores. And may he associated with the mouth of rivers.
Salt Marshes and Mangrove Forests
What are in transitional environments?
Estuaries, Salt Marshes, Mangrove Forests, Freshwater Wetlands
Occupy low-lying areas with landscape. Examples are swamp and marshes. Generally inundated with water.
Freshwater Wetlands
Can form whenever runoff water collect in low lying areas
Freshwater Marshes
Concentrated along sandy shores
Salt Marshes
From temperate to high latitudes
Salt Marshes
Associated with the terrestrial climates of the tropical rainforest, TDF, TS, AND S. Due to mainly it sensitivity with the _____
Mangroves, frost
Are channels the fill and empty with the tides
Tidal Creeks
Where tidal creeks are bordered to
Leeves
Beyond the leeves and include salt pans
Marsh Flats
Periodically collect water they eventually evaporates. Leaving a layer of salt
Salt pans
Example of mangrove forests (4)
- Conocarpus erectus
- Avicennia germinans
- Laguncularia racemosa
- Rhizophora mangle
Flooded with average spring tides
Avicennia
Touched only by the highest tides
Laguncularia
Mangroves growing nearest the water belong here
genus Rhizophora
At high latitudes, many freeze during winter
Salt Marshes
Grow where the minimum annual temperature is about 20°C
Mangrove Forests
Its shallows can heat up to over 40°C
Mangroves
Minimum annual temperature for mangroves
20°C
Drives the complex currents in estuaries. This current transport organisms, renew oxygen and remove wastes
Oceanic Tides and River Flows
Also flow in salt marshes and mangrove forests. It transports the litter produced by salt marshes and mangrove vegetation
Tidal Currents
It is highly valuable and reach extreme levels
Oxygen concentration
High rates of this can increase dissolved oxygen concentrations to supersaturated levels
Photosynthesis
Dominated by grasses
Salt Marshes
Doesn’t support a great diversity of species but they are abundant
Estuaries and Salt Marshes
Where most productive fisheries can occur
Estuaries and Salt Marshes
Attract birds, especially water birds
Estuaries and Salt Marshes
Birds are joined by crocodiles, alligators and tigers
Mangroves
Among the most productive of environments
Freshwater Wetlands
Are magnets for urban development
Estuaries and Salt Marshes
Enrichment by organic matter and nutrients and resulting to oxygen depletion have produced this in coastal waters
Dead Zones
Heavy metals discharged into Estuaries and Salt Marshes are incorporated into plant and animal tissues and have been through the process of _____. It elevates the toxic levels in some food species
Bioaccumulation
Human Influences
- Agriculture
- Urban Development
- Pollution
- Dead Zones
- Bioaccumulation
- Clearing up mangrove forests
- Replanting of mangrove