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  Chapter 12 Estuaries Where Rivers  meet the Sea
Estuaries ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Value of Estuaries ,[object Object],[object Object],[object Object]
Cape Hatteras Estuary In N. Carolina
Milford Sound in New Zealand is a fjord – a finger-like inlet surrounded by sheer walls with a shallow entrance and deep basin resulting in stagnant, oxygen-depleted deep water.
4 Types of Estuaries ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
4 Types of Estuaries ,[object Object],[object Object],[object Object],[object Object],[object Object]
an IDEAL ESTUARY Isohaline are the same salt content water.  How many are there?
High Tide Low Tide The Salt wedge moves in and out with the tide
Physical Characteristics  of Estuaries ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Physical Characteristics  of Estuaries ,[object Object],[object Object],[object Object],[object Object]
Types of species living in an idealized estuary in relation to salinity. The width of the bars = relative numbers of species
The body fluids of estuarine animals responds in various ways to the salinity of the water. Osmoregulator = blood salinity stays the same. Osmoconformer=blood salinity will change with the water salinity.
Look at the shallow roots of this mangrove tree reaching above the mud to get oxygen. Why does mud not have much oxygen in it?
Cordgrass is an important component of salt water marshes
Pickle Weed is a common succulent plant in salt marshes around the world.
The Atlantic menhaden is an important commercial fish spawn offshore and larvae drift with tides into the estuary to grow.
The California horn snail is abundant on mudflats
Mudflat animals in temperate estuaries
Fiddler on the Mud What is this behavior for?
The daily tides play a crucial role in salt marshes.  They help circulate detritus and nutrients and expose mudflat organisms to predation by shorebirds and other animals
A salt marsh near Atlantic Beach, NC. Many of these types of marshes have been filled in and destroyed.
A mudskipper from the mudflats of a mangrove forest in New Guinea. Its eyes can see in air.
An Oyster reef formed by the eastern oyster near Beaufort, NC are exposed at low tide.
Where Rivers Meet the Sea

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Where Rivers Meet the Sea

  • 1. Chapter 12 Estuaries Where Rivers meet the Sea
  • 2.
  • 3.
  • 4.
  • 5. Cape Hatteras Estuary In N. Carolina
  • 6. Milford Sound in New Zealand is a fjord – a finger-like inlet surrounded by sheer walls with a shallow entrance and deep basin resulting in stagnant, oxygen-depleted deep water.
  • 7.
  • 8.
  • 9. an IDEAL ESTUARY Isohaline are the same salt content water. How many are there?
  • 10. High Tide Low Tide The Salt wedge moves in and out with the tide
  • 11.
  • 12.
  • 13. Types of species living in an idealized estuary in relation to salinity. The width of the bars = relative numbers of species
  • 14. The body fluids of estuarine animals responds in various ways to the salinity of the water. Osmoregulator = blood salinity stays the same. Osmoconformer=blood salinity will change with the water salinity.
  • 15.
  • 16. Look at the shallow roots of this mangrove tree reaching above the mud to get oxygen. Why does mud not have much oxygen in it?
  • 17. Cordgrass is an important component of salt water marshes
  • 18. Pickle Weed is a common succulent plant in salt marshes around the world.
  • 19. The Atlantic menhaden is an important commercial fish spawn offshore and larvae drift with tides into the estuary to grow.
  • 20. The California horn snail is abundant on mudflats
  • 21. Mudflat animals in temperate estuaries
  • 22. Fiddler on the Mud What is this behavior for?
  • 23.
  • 24. The daily tides play a crucial role in salt marshes. They help circulate detritus and nutrients and expose mudflat organisms to predation by shorebirds and other animals
  • 25. A salt marsh near Atlantic Beach, NC. Many of these types of marshes have been filled in and destroyed.
  • 26. A mudskipper from the mudflats of a mangrove forest in New Guinea. Its eyes can see in air.
  • 27. An Oyster reef formed by the eastern oyster near Beaufort, NC are exposed at low tide.