Estuaries may be either brackish or freshwater systems. True False 2. Estuaries, much like wetlands, are breeding ground for many marine species as well as water fowl. True False 3. The biggest threat to the health of our estuaries is the erosion due to the constant movement of water, either tides, sea level flux, or currents. direct and indirect activities of man that contribute to pollution and deposition of sediments.

Estuaries may either be brackish water or freshwater system and support many marine species and birds such as water fowl. However, the activities of man pose the most immediate threat to estuaries.

What are estuaries?

Estuaries are partially enclosed land areas where freshwater from rivers and streams mixes with salt water from the ocean.

This mixture of fresh water and salty seawater is called brackish water.

Estuaries may either be brackish water or freshwater system.

Estuaries serve as habitats for some animal and plant communities.

Much like wetlands, estuaries serve as breeding ground for many species of marine species such as fish, and birds such as water fowl.

The biggest threat to the health of our estuaries is the direct and indirect activities of man that contribute to pollution and deposition of sediments.

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