Estuary

The image shows an aquatic food chain. Which organism(s) will be unaffected if the krill are removed from the aquatic food web?

• A. fish

• B. penguin

• C. phytoplankton

• D. squid

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What is the definition of ESTUARY?

• An area where fresh water mixes with salt water from the ocean.

• The land between high and low tides that includes beaches and rocky shores.

• An area of land that is sometimes underwater or whose soil contains a great deal of moisture.

• Underwater zone from the shore to the edge of the continental shelf.

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NGSS.MS-ESS2-4

A body of water where fresh and salt water meet is called ....

• channel 

• estimate 

• inlet

• estuary

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How would a large increase in the salinity of an estuary MOST LIKELY affect the ecosystem of the estuary?

• All organisms would die.

• All organisms would continue to live as the do now.

• The number of salt-tolerant organisms would increase, and the number of salt-intolerant organisms would decrease.

• The number of salt-intolerant organisms would increase, and the number of salt-tolerant organisms would decrease.

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This ​ (a)   is composed of a mixture of both salt and freshwater (brackish water). It is great for ​ (b)   . One of the largest and most productive estuaries in the United States is located at ​ (c)   .

• estuary

• marsh

• Chesapeake Bay, Virginia

• New River, Virginia

• Lake Superior, Michigan

• fishing

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This ​ (a)   is composed of a mixture of both salt and freshwater (brackish water). 

• estuary

• fen

• bog

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a mix of salt water and fresh water

• mixture

• brackish

• abiotic

• biotic

The image is an example of which type of estuary?

• Bar-built estuary

• Fjord

• Coastal plain estuary

• Salt wedge estuary

Which aquatic biome is characterized by where rivers meet oceans?

• Marine

• Freshwater

• Coral Reef

• Estuary

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When salt and fresh water mix, what is the new water substance called?

• Brackish Acid

• Fresh Water

• Salt Water

• Brackish Water

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