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Barataria Bay

Barataria Bay
From: USEPA, 1999; GEMS, 2001

Barataria Bay is located in Louisiana, between Bayou Lafourche to the west and the Mississippi River delta to the east. It is fringed by a complex system of bayous, canals, channels and small embayments. The system is separated from the Gulf of Mexico by the Grande Terre Islands with Grand Isle on the western boundary. Quatre Bayoux Pass and another pass just east of Grand Isle serve as the primary connections to open Gulf water.

In conjunction with the Timbalier-Terrebone Bay system, Barataria Bay has been designated an estuary of national significance by the Environmental Protection Agency National Estuary Program. The bay is characterized by swamp forests and marshes which provide a nursery and breeding ground for migratory birds and a variety of recreationally and commercial important species, including alligators, finfish, shellfish, songbirds, ducks and geese.

Coordinates:   29.37° N  89.93° W

Selected Characteristics: (USEPA, 1999)
Surface Area:   1,673 km2
Drainage Area:   5,700 km2
Average Daily FW Inflow:   156 m3/s
Average Depth:   2.0 m
Average Salinity:   13 ppt

USEPA. 1999. Ecological condition of estuaries in the Gulf of Mexico. EPA 620-R-98-004. U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, Gulf Breeze, Florida. 80 pp.

Gulf Ecological Management Site (GEMS). 2001. Located on the web at:

Additional Information:
LACoast - Barataria Basin
Louisiana Department of Natural Resources - Barataria Bay
Louisiana's State Park - Grand Isle State Park
Louisiana Department of Wildlife & Fisheries - Wisner Wildlife Management Area
Gulf Ecological Management Site - Barataria Bay

Keywords:   Barataria, Bay, Estuary, Island, Alligator, Bird, Fish, Shellfish

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