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An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. [1] Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone .
Drakes Estero, the landing spot of Francis Drake on the coast of North America in 1579 during his circumnavigation of the world is a National Historic Landmark. [13] [14] A historical marker has been placed on Drakes Beach near the Kenneth C. Patrick Visitor Center and monuments to Drake have been erected at the Drake's Cove landing site.
Mobile Bay, Alabama, United States (also the only known place in the world where jubilees regularly occur [see Mobile Bay Jubilee]) Port Royal Sound part of Beaufort County, South Carolina, United States, The Lowcountry Estuarium – Estuary, Marsh, & Creek Life – South Carolina Coast [4] Ringkøbing Fjord in Midtjylland, Denmark
A marine coastal ecosystem is a marine ecosystem which occurs where the land meets the ocean. Worldwide there is about 620,000 kilometres (390,000 mi) of coastline. Coastal habitats extend to the margins of the continental shelves, occupying about 7 percent of the ocean surface area.
For deltas that form further upriver in an estuary, there are complex yet quantifiable linkages between winds, tides, river discharge, and delta water levels. [31] [32] The Ganges Delta in India and Bangladesh is the largest delta in the world, and one of the most fertile regions in the world.
The World Ocean. For example, the Law of the Sea states that all of the World Ocean is "sea", [8] [9] [10] [b] and this is also common usage for "the sea". Any large body of water with "Sea" in the name, including lakes. River – a narrow strip of water that flows over land from a higher elevation to a lower one
Model of Estuary. The residence time of water is a key variable determining the health of an estuary, particularly from human-induced stresses.Rapid flushing ensures that there is insufficient time for sediment accumulation or dissolved oxygen depletion in the estuary; thus a well flushed estuary is intrinsically more robust than a poorly flushed estuary. [1]
The Chesapeake Bay (/ ˈ tʃ ɛ s ə p iː k / CHESS-ə-peek) is the largest estuary in the United States. The bay is located in the Mid-Atlantic region and is primarily separated from the Atlantic Ocean by the Delmarva Peninsula, including parts of the Eastern Shore of Maryland, the Eastern Shore of Virginia, and the state of Delaware.