Piedras Blancas State Marine Reserve
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Piedras Blancas State Marine Reserve (SMR) and Piedras Blancas State Marine Conservation Area (SMCA) are two adjoining
marine protected areas Marine protected areas (MPA) are protected areas of seas, oceans, estuaries or in the US, the Great Lakes. These marine areas can come in many forms ranging from wildlife refuges to research facilities. MPAs restrict human activity for a conserv ...
that lie offshore of
San Luis Obispo County San Luis Obispo County (), officially the County of San Luis Obispo, is a county on the Central Coast of California. As of the 2020 census, the population was 282,424. The county seat is San Luis Obispo. Junípero Serra founded the Mission ...
on California’s central coast. The combined area of these marine protected areas is . The SMR protects all marine life within its boundaries. Fishing and take of all living marine resources is prohibited. Within the SMCA fishing and take of all living marine resources is prohibited except the commercial and recreational take of salmon and albacore.California Department of Fish and Game.
Online Guide to California’s Central Coast Marine Protected Areas
. Retrieved on December 18, 2008


History

Piedras Blancas SMR and Piedras Blancas SMCA were established in September 2007 by the
California Department of Fish & Game The California Department of Fish and Wildlife (CDFW), formerly known as the California Department of Fish and Game (CDFG), is a state agency under the California Natural Resources Agency. The Department of Fish and Wildlife manages and protect ...
. They are two of 29 marine protected areas adopted during the first phase of the
Marine Life Protection Act The Marine Life Protection Act (MLPA) was passed in 1999 and is part of the California Fish and Game Code. The MLPA requires California to reevaluate all existing marine protected areas (MPAs) and potentially design new MPAs that together form a s ...
Initiative. The Marine Life Protection Act Initiative (or MLPAI) is a collaborative public process to create a statewide network of marine protected areas along the California coastline.


Geography and natural features

These two marine protected areas adjoin each other off the coast of San Luis Obispo County. The Piedras Blancas SMR is bounded by the mean high tide line and straight lines connecting the following points in the order listed:California Department of Fish and Game.
Central Coast Marine Protected Areas
. Retrieved December 18, 2008.
35° 42.85’ N. lat. 121° 18.95’ W. long.; 35° 42.85’ N. lat. 121° 21.00’ W. long.; 35° 39.15’ N. lat. 121° 18.50’ W. long.; and 35° 39.15’ N. lat. 121° 14.45’ W. long. The Piedras Blancas SMCA is bounded by the mean high tide line and straight lines connecting the following points in the order listed except where noted: 35° 42.85’ N. lat. 121° 21.00’ W. long.; 35° 42.85’ N. lat. 121° 22.85’ W. long.; thence southward along the three nautical mile offshore boundary to 35° 39.15’ N. lat. 121° 20.90’ W. long.; 35° 39.15’ N. lat. 121° 18.50’ W. long.; and 35° 42.85’ N. lat. 121° 21.00’ W. long.


Habitat and wildlife

The Piedras Blancas marine protected areas encompass a rich nearshore, including extensive
tidepools A tide pool or rock pool is a shallow pool of seawater that forms on the rocky intertidal shore. Many of these pools exist as separate bodies of water only at low tide. Many tide pool habitats are home to especially adaptable animals that ...
, two species of kelp, and both sandy and cobble beaches. Offshore, a high relief deepwater rocky structure attracts large
forage fish Forage fish, also called prey fish or bait fish, are small pelagic fish which are preyed on by larger predators for food. Predators include other larger fish, seabirds and marine mammals. Typical ocean forage fish feed near the base of the food ...
populations and provides shelter for rockfish. These habitats support a particularly high diversity of birds and
marine mammals Marine mammals are aquatic mammals that rely on the ocean and other marine ecosystems for their existence. They include animals such as seals, whales, manatees, sea otters and polar bears. They are an informal group, unified only by their relia ...
including California
sea lions Sea lions are pinnipeds characterized by external ear flaps, long foreflippers, the ability to walk on all fours, short and thick hair, and a big chest and belly. Together with the fur seals, they make up the family Otariidae, eared seals. ...
, elephant seals, harbor seals, northern
fur seals Fur seals are any of nine species of pinnipeds belonging to the subfamily Arctocephalinae in the family '' Otariidae''. They are much more closely related to sea lions than true seals, and share with them external ears (pinnae), relatively lon ...
and sea otters. Historically this area was one of the most productive
abalone Abalone ( or ; via Spanish , from Rumsen ''aulón'') is a common name for any of a group of small to very large marine gastropod molluscs in the family (biology), family Haliotidae. Other common name In biology, a common name of a taxon o ...
beds in California. Many migratory whales most notably
gray whale The gray whale (''Eschrichtius robustus''), also known as the grey whale,Britannica Micro.: v. IV, p. 693. gray back whale, Pacific gray whale, Korean gray whale, or California gray whale, is a baleen whale that migrates between feeding and bree ...
s pass and rest through the area in annual seasons, and there had been a sighting of a North Pacific right whale, the most rare of large whales in the world in 1995."SPECIAL STATUS SPECIES: NORTH PACIFIC RIGHT WHALE (Eubalaena japonica)". Simon-Sanctuary Integrated Monitoring Network. . Retrieved January 03, 2014


Recreation and nearby attractions

Hearst Castle, former home of William Randolph Hearst, is at nearby Hearst San Simeon State Historic Monument and offers visitor tours. The Piedras Blancas Light Station is an Outstanding Natural Area, managed by the Bureau of Land Management. The lighthouse was built in 1875 and a Victorian dwelling was later completed. Tours are offered to the public. Piedreas Blancas is home to an important elephant seal rookery. Friends of the Elephant Seal is a non-profit organization dedicated to educating people about elephant seals and other marine life. California’s marine protected areas encourage recreational and educational uses of the ocean. Activities such as kayaking, diving, snorkeling, and swimming are allowed unless otherwise restricted.


Scientific monitoring

As specified by the Marine Life Protection Act, select marine protected areas along California’s central coast are being monitored by scientists to track their effectiveness and learn more about ocean health. Similar studies in marine protected areas located off of the Santa Barbara Channel Islands have already detected gradual improvements in fish size and number.Castell, Jenn, et al.
How do patterns of abundance and size structure differ between fished and unfished waters in the Channel Islands? Results from SCUBA surveys
. Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO) at University of California, Santa Barbara and University of California, Santa Cruz; Channel Islands National Park. Retrieved December 18, 2008.
Local scientific and educational institutions involved in the monitoring include Stanford University’s Hopkins Marine Station, University of California Santa Cruz, Moss Landing Marine Laboratories and Cal Poly San Luis Obispo. Research methods include hook-and-line sampling, intertidal and scuba diver surveys, and the use of Remote Operated Vehicle (ROV) submarines.


References


External links


California MPAsMarine Life Protection Act InitiativeCalOceansHearst San Simeon State Historic Monument
{{DEFAULTSORT:Piedras Blancas State Marine Reserve (Smr) And Piedras Blancas State Marine Conservation Area (Smca) Marine reserves of the United States Protected areas established in 2007 2007 establishments in California