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Brackish water, sometimes termed brack water, [1] [2] is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuaries, or it may occur in brackish fossil aquifers. The word comes from the Middle Dutch root brak.
The Fleet lagoon in Dorset, England; Loch Etive in Scotland [2] Loch Long in Scotland [3] Parts of the Rhône Delta, France: an area known as the Camargue; Widewater, a land-locked lagoon near Lancing, England
In usage in the Southern United States, a bayou (/ ˈ b aɪ. uː, ˈ b aɪ. oʊ /) [1] is a body of water typically found in a flat, low-lying area. It may refer to an extremely slow-moving stream, river (often with a poorly defined shoreline), marshy lake, wetland, or creek. They typically contain brackish water highly
The shallow lagoon is separated from the Mediterranean Sea by narrow shoals connecting to a small, rocky mountain. Garabogazköl lagoon in Turkmenistan Venetian Lagoon. A lagoon is a shallow body of water separated from a larger body of water by a narrow landform, such as reefs, barrier islands, barrier peninsulas, or isthmuses.
However, very little water exchange occurs at all; [10] every second only 25 cubic metres (6,600 US gal) of water flows into the lagoon. [12] Rainwater from tropical storms and hurricanes is the only significant fresh water the bay receives. The salinity is greatest in the Lower Laguna Madre, where it averages around 45 ppt. [10]
Swamps vary in size and are located all around the world. The water of a swamp may be fresh water, brackish water, or seawater. Freshwater swamps form along large rivers or lakes where they are critically dependent upon rainwater and seasonal flooding to maintain natural water level fluctuations.
The natural portions of the estuary have mean low-water depths ranging from 6 to 10 feet (2 to 3 m). [30]: III–1 The Trinity–San Jacinto Estuary is almost surrounded by the Greater Houston urban area, and its shores are relatively urbanized and industrialized, especially to the west. [30]:
Brackish marshes are a unique type of wetland and the local circumstances are paramount to consider for either conservation, biodiversity, or restoration. Brackish marshes are also great in reducing nutrient pollution such as nitrogen. [28] There are many sources of nitrogen entering the water systems especially in Texas.