Tijuana River Estuary | |
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![]() Tijuana River Estuary | |
Map of California | |
Location | San Diego County, California |
Coordinates | 32°33′24″N117°7′34″W / 32.55667°N 117.12611°W Coordinates: 32°33′24″N117°7′34″W / 32.55667°N 117.12611°W |
Area | 1,569 acres (635 ha) |
Designated | 1973 |
The Tijuana River Estuary is an intertidal coastal wetland at the mouth of the Tijuana River in San Diego County, California, in the United States bordering Tijuana, Baja California, Mexico. It is the location of the Tijuana River National Estuarine Research Reserve, Tijuana Slough National Wildlife Refuge, and Border Field State Park. The estuary is a shallow water habitat. Often termed an intermittent estuary since its volume is subject to the discharge controlled by the seasons of the year, the volume of the estuary fluctuates and at times there is dry land, or flooded areas. [1] It was designated a National Natural Landmark in 1973. [2]
The estuary is one of the few remaining salt marshes on the South Coast. Its location positions it under the path of the Pacific Flyway, where it serves as a stopover point. [1] It is the largest remaining natural coastal area between Santa Barbara, California and San Quintín, Baja California. [3] Three times the size of Central Park, the estuary covers about 2,500 acres. [4] Many species of migratory and native species rely on the estuary as an essential breeding, feeding, and nesting habitat. [1] The estuary lies within the southernmost part of San Diego County within the city limits of the South Bay city of Imperial Beach.
Prior to 1994, foot traffic by illegal immigration was a major source of top soil erosion. After 1994, off-road vehicle usage for policing has become a major cause of soil loss. Beginning in 2010, a re-vegetation effort along the Border Infrastructure System has occurred. [5]
The National Estuarine Research Reserve System is a network of 29 protected areas established by partnerships between the National Oceanic and Atmospheric Administration (NOAA) and coastal states. The reserves represent different biogeographic regions of the United States. The National Estuarine Research Reserve System protects more than 1.3 million acres of coastal and estuarine habitats for long-term research, water-quality monitoring, education, and coastal stewardship.
Border Field State Park is a state park of California, United States, containing beach and coastal habitat on the Mexico–United States border. The park is within the city limits of Imperial Beach in San Diego County, next to the suburb of Playas de Tijuana in Mexico. It contains the southernmost point in the state of California. The refuge forms the southern part of the Tijuana River National Estuarine Research Reserve.
The Tijuana River is an intermittent river, 120 mi (195 km) long, near the Pacific coast of northern Baja California state in northwestern Mexico and Southern California in the western United States. The river is heavily polluted with raw sewage from the city of Tijuana, Mexico.
Ballona Wetlands State Ecological Reserve is located in Los Angeles County, California, just south of Marina del Rey and east of Playa del Rey. The natural wetlands once included the areas now taken up by Marina del Rey, New Amsterdam Canals of Venice, Playa Vista, northern Playa del Rey, and formerly extended northerly beyond Venice Boulevard to the historical Venice Canals that are now covered in asphalt with 6 streets.
South Bay, also known as South County, is a region in southwestern San Diego County, California consisting of the cities and unincorporated communities of Bonita, Chula Vista, Imperial Beach, Lincoln Acres, National City, and South San Diego.
Mission Bay is a human-made saltwater bay located south of the Pacific Beach community of San Diego, California created from approximately 2,000 acres (810 ha) of historical wetland, marsh, and saltwater bay habitat. The bay is part of the recreational Mission Bay Park, the largest man-made aquatic park in the country, consisting of 4,235 acres (17.14 km2), approximately 46% land and 54% water. The combined area makes Mission Bay Park the ninth largest municipally-owned park in the United States.
The Pacific Flyway is a major north-south flyway for migratory birds in the Americas, extending from Alaska to Patagonia. Every year, migratory birds travel some or all of this distance both in spring and in fall, following food sources, heading to breeding grounds, or travelling to overwintering sites.
The Jacques Cousteau National Estuarine Research Reserve, located in southeastern New Jersey, encompasses over 110,000 acres (450 km2) of terrestrial, wetland and aquatic habitats within the Mullica River-Great Bay Ecosystem.
San Diego–Tijuana is an international transborder agglomeration, straddling the border of the adjacent North American coastal cities of San Diego, California, United States and Tijuana, Baja California, Mexico. The 2012 population of the region was 4,922,723, making it the largest bi-national conurbation shared between the United States and Mexico, the second-largest shared between the US and another country. In its entirety, the region consists of San Diego County in the United States and the municipalities of Tijuana, Rosarito Beach, and Tecate in Mexico. It is the third most populous region in the California–Baja California region, smaller only than the metropolitan areas of Greater Los Angeles and the San Francisco Bay Area.
Elkhorn Slough is a 7-mile-long (11 km) tidal slough and estuary on Monterey Bay in Monterey County, California. It is California's second largest estuary and the United States' first estuarine sanctuary. The community of Moss Landing and the Moss Landing Power Plant are located at the mouth of the slough on the bay.
Designated in 1991, the Chesapeake Bay National Estuarine Research Reserve - Virginia (CBNERR-VA) is one of 29 protected areas that make up the National Estuarine Research Reserve System (NERRS). Established to promote informed management of the nation's estuaries and coastal habitats, national estuarine research reserves inspire solutions for healthy coasts and maintain strong local economies, effectively functioning as America's bridge between freshwater and salt.
Tijuana Slough National Wildlife Refuge is located in the most southwestern corner of the contiguous United States. As a National Wildlife Refuge, it is administered by the U.S. Fish and Wildlife Service. It was established in 1980.
Tijuana River National Estuarine Research Reserve is a natural reserve in Imperial Beach, California and San Ysidro, San Diego. It encompasses the Tijuana River Estuary, located on the Mexico–United States border. It is divided into two parts: the Tijuana Slough National Wildlife Refuge on the north, and Border Field State Park in the south.
The California coastal sage and chaparral is a Mediterranean forests, woodlands, and scrub ecoregion located in southwestern California and northwestern Baja California (Mexico). It is part of the larger California chaparral and woodlands ecoregion.
The San Diego National Wildlife Refuge Complex is a series of wildlife refuges established by the United States National Wildlife Service beginning in 1972. The complex incorporates five refuges in San Diego County and Orange County in California.
Tijuana River Mouth State Marine Conservation Area (SMCA) is a marine protected area that extends offshore of southern San Diego County on California’s south coast. The SMCA covers 2.91 square miles.
The Lake Superior National Estuarine Research Reserve includes land and water areas along the St. Louis River and Lake Superior in Douglas County, in the northwest corner of Wisconsin, United States. It is one of 29 National Estuarine Research Reserves. The Reserve is operated as a program of the Natural Resources Institute of the University of Wisconsin-Madison Division of Extension. It has an area of 16,697 acres (6,757 ha), and was designated in 2010.
Goat Canyon also known as Cañón de los Laureles, begins in Tijuana, Mexico, and ends in the United States just north of the Mexico–U.S. border. The canyon is formed by Goat Canyon Creek, which receives water and other runoff from areas south of the border. Most of the canyon and its watershed lies within Baja California.
Joy Buswell Zedler is an American ecologist and professor of botany at the University of Wisconsin–Madison (UW), holding the title of Aldo Leopold Chair of Restoration Ecology. In addition to restoration ecology, she specializes in the ecology of wetlands, rare species, interactions between native and introduced species, and adaptive management.
The Smuggler's Gulch is part of a steep walled canyon about 2 miles (3.2 km) inland of the Pacific Ocean. The canyon crosses the Mexico–United States border, between Tijuana, Baja California, and San Diego, California, and Smuggler's Gulch is the part of the canyon on the US side of the border. It may also be called Cañón del Matadero or Valle Montezuma in Spanish, but these names apply more generally to the whole canyon. Smuggling activities within Smuggler's Gulch have occurred since the 19th century, giving this part of the canyon its name.