Test: Bays & Estuaries — Chapter 11

Front

What factors contribute to the salinity of Laguna Madre?

Back

Few inlets, little freshwater, and high evaporation contribute to the high salinity of Laguna Madre.

Front

True or False: Barrier islands run parallel to the mainland.

Back

True

Front

What is NOT a major factor influencing salinity gradients in estuaries?

Back

Sand color on the beach is NOT a major factor influencing salinity gradients in estuaries.

Front

Which species uses seagrass beds and oyster reefs as nursery areas?

Back

The Spotted seatrout uses seagrass beds and oyster reefs as nursery areas.

Front

True or False: Texas estuaries produce over 100 million pounds of seafood each year.

Back

True.

Front

Define estuary.

Back

An estuary is a coastal area where freshwater from rivers meets and mixes with saltwater from the ocean.

Front

What role do tides play in estuaries?

Back

Tides influence the salinity and nutrient levels in estuaries by bringing in saltwater and affecting water levels.

Front

Explain the importance of seagrass beds in estuaries.

Back

Seagrass beds provide habitat and nursery areas for various marine species, improve water quality, and stabilize sediments.

Front

What is the impact of human alterations like dredging on estuaries?

Back

Human alterations like dredging can disrupt natural habitats, alter salinity gradients, and negatively affect marine life.

Front

List two major factors that influence salinity in estuaries.

Back

Freshwater inflow and tidal movements are two major factors that influence salinity in estuaries.