San Pablo Bay is a tidal

estuary 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. Estuaries form a transition zone between river environments and maritime enviro ...

that forms the northern extension of the

San Francisco Bay San Francisco Bay (Chochenyo language, Chochenyo: 'ommu) is a large tidal estuary in the United States, U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the cities of San Francisco, California, San ...

in the

East Bay The East Bay is the eastern region of the San Francisco Bay Area and includes cities along the eastern shores of San Francisco Bay and San Pablo Bay. The region has grown to include inland communities in Alameda and Contra Costa counties. Wi ...

and North Bay regions of the

San Francisco Bay Area The San Francisco Bay Area, commonly known as the Bay Area, is a List of regions of California, region of California surrounding and including San Francisco Bay, and anchored by the cities of Oakland, San Francisco, and San Jose, California, S ...

in northern

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

. Most of the Bay is shallow; however, there is a deep water channel approximately in the middle of the bay, which allows access to major ports in

Sacramento Sacramento ( or ; ; ) is the capital city of the U.S. state of California and the seat of Sacramento County. Located at the confluence of the Sacramento and American Rivers in Northern California's Sacramento Valley, Sacramento's 2020 p ...

, Stockton, Benicia, and Martinez; and other smaller ports on the

Sacramento–San Joaquin River Delta The Sacramento–San Joaquin River Delta, or California Delta, is an expansive inland river delta and estuary in Central California and Northern California Northern California (commonly shortened to NorCal) is a geocultural region that ...

Geography

San Pablo Bay was named after Rancho San Pablo, a Spanish land grant given to colonial

Alta California Alta California (, ), also known as Nueva California () among other names, was a province of New Spain formally established in 1804. Along with the Baja California peninsula, it had previously comprised the province of , but was made a separat ...

settlers in 1815, on the bay at the site of the present-day city of San Pablo. The bay is approximately across and has an area of approximately . The bay receives the waters of the

and San Joaquin rivers, via Suisun Bay and the Carquinez Strait on its northeast end, and it connects to the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...

via the San Francisco Bay on its southern end. The bay is heavily silted from the contributions of the two rivers, which themselves drain most of the Central Valley of California. San Pablo Bay also receives the waters of Sonoma Creek through the Napa Sonoma Marsh, San Rafael Creek, and the Petaluma River directly, and the Napa River which flows into the Carquinez Strait via the Mare Island Strait near its entrance into the bay. All tributaries except for Sonoma Creek are commercially navigable and maintained by the U.S. Army Corps of Engineers. Two peninsulas separate San Pablo Bay from San Francisco Bay. The eastern, Point San Pablo, is in the city of Richmond and the western, Point San Pedro, borders the city of San Rafael. The bay is shared between Contra Costa county on the southern and eastern shore, and Solano, Sonoma and Marin counties on the northern and western shores. The county boundaries meet near the center of the bay. Communities on the shores of San Pablo Bay include: Richmond, San Pablo, Pinole,

Hercules Hercules (, ) is the Roman equivalent of the Greek divine hero Heracles, son of Jupiter and the mortal Alcmena. In classical mythology, Hercules is famous for his strength and for his numerous far-ranging adventures. The Romans adapted the Gr ...

Rodeo Rodeo () is a competitive equestrian sport that arose out of the working practices of cattle herding in Spain and Mexico, expanding throughout the Americas and to other nations. It was originally based on the skills required of the working vaqu ...

in Contra Costa County, Vallejo in Solano County, along with Novato and San Rafael in Marin County. Because the Bay is close to several major and local airports, but outside of the main air traffic corridors, it is a popular pilot training area. Because of its great size but shallow waters, San Pablo Bay frequently has difficult boating conditions. The prevailing western wind meets strong currents both at Carquinez Straits and, at the opposite end of the bay, near the Richmond Bridge, to produce large waves, with few areas of retreats for most boats.

Ecology

There are many undeveloped shore lands with

salt marsh A salt marsh, saltmarsh or salting, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides. I ...

es and

mudflat Mudflats or mud flats, also known as tidal flats or, in Ireland, slob or slobs, are coastal wetlands that form in intertidal areas where sediments have been deposited by tides or rivers. A global analysis published in 2019 suggested that tidal ...

s. The Bay is a primary wintering stop for the canvasback duck population on the Pacific Flyway, as well as a migratory staging ground for numerous species of waterfowl. Much of the northern shore of the bay is protected as part of the San Pablo Bay National Wildlife Refuge.

Endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...

that are found in the bay include the California brown pelican, California clapper rail, and salt marsh harvest mouse. This is a popular destination for recreation

fishing Fishing is the activity of trying to catch fish. Fish are often caught as wildlife from the natural environment (Freshwater ecosystem, freshwater or Marine ecosystem, marine), but may also be caught from Fish stocking, stocked Body of water, ...

, with Saltwater species including:

striped bass The striped bass (''Morone saxatilis''), also called the Atlantic striped bass, striper, linesider, rock, or rockfish, is an anadromous perciform fish of the family Moronidae found primarily along the Atlantic coast of North America. It has ...

, surfperch,

sturgeon Sturgeon (from Old English ultimately from Proto-Indo-European language, Proto-Indo-European *''str̥(Hx)yón''-) is the common name for the 27 species of fish belonging to the family Acipenseridae. The earliest sturgeon fossils date to the ...

, starry flounder,

leopard shark The leopard shark (''Triakis semifasciata'') is a species of houndshark, in the family (biology), family Houndshark, Triakidae. It is found along the Pacific coast of North America, from the U.S. state of Oregon to Mazatlán in Mexico. Typically ...

, topsmelt, and anchovy. In the 1880s there was a shrimp-fishing village, where some 500 Chinese people lived; they shipped approximately 90% of their catch to China. The location is now part of China Camp State Park.

Popular culture

San Pablo Bay is the setting of alternative rock band Primus's four-part song series "Fisherman's Chronicles," and is also referenced in "The Toys Go Winding Down" and "Harold of the Rocks." It is also mentioned in The Minus 5 song "John Barleycorn Must Live." In Susan Choi's book, ''American Woman,'' which mirrors the Patty Hearst scandal of the 1970s, the Bay's waters are said to welcome main characters Jenny and Pauline home after they've traversed from the East coast.

References

External links

USGS: Sediment Changes in San Pablo BayHighway to the Flyway:The Road to Restoration on San Pablo Bay
from Bay Nature magazine, July–September 2007 issue. Provides a brief history of the marshes of San Pablo Bay. {{Authority control Bays of California Bays of San Francisco Bay Estuaries of California Estuaries of Marin County, California Bodies of water of Contra Costa County, California Bodies of water of Richmond, California Landforms of the San Francisco Bay Area Subregions of the San Francisco Bay Area Bays of Contra Costa County, California Tributaries of San Francisco Bay Bays of Marin County, California

Geography

Ecology

Popular culture

See also

References

External links