Syncaris pasadenae
Encyclopedia
Syncaris pasadenae was a species of shrimp
in the family Atyidae
, which is believed to be extinct
.
It lived in the drainage basin
of the Los Angeles River
, near Pasadena
, San Gabriel
and Warm Creek, and was originally described from material collected on the site where the Rose Bowl
now stands. A reference to "freshwater shrimps" in a tributary of the Santa Ana River
from 1927 may also refer to S. pasadenae.
Its habitat was destroyed by channelization of streams. It has not been seen alive since 1933, despite extensive searching, and is the only Recent species of shrimp to have gone extinct.
Shrimp
Shrimp are swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world in both fresh and salt water. Adult shrimp are filter feeding benthic animals living close to the bottom. They can live in schools and can swim rapidly backwards. Shrimp are an important...
in the family Atyidae
Atyidae
Atyidae is a family of shrimp, present in all tropical and most temperate waters of the world. Adults of this family are almost always confined to fresh water...
, which is believed to be extinct
Extinction
In biology and ecology, extinction is the end of an organism or of a group of organisms , normally a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point...
.
It lived in the drainage basin
Drainage basin
A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...
of the Los Angeles River
Los Angeles River
The Los Angeles River is a river that starts in the San Fernando Valley, in the Simi Hills and Santa Susana Mountains, and flows through Los Angeles County, California, from Canoga Park in the western end of the San Fernando Valley, nearly southeast to its mouth in Long Beach...
, near Pasadena
Pasadena, California
Pasadena is a city in Los Angeles County, California, United States. Although famous for hosting the annual Rose Bowl football game and Tournament of Roses Parade, Pasadena is the home to many scientific and cultural institutions, including the California Institute of Technology , the Jet...
, San Gabriel
San Gabriel, California
San Gabriel is a city in Los Angeles County, California, United States. It is named after the Mission San Gabriel Arcángel, founded by Junipero Serra. The city grew outward from the mission and in 1852 became the original township of Los Angeles County. San Gabriel was incorporated in 1913...
and Warm Creek, and was originally described from material collected on the site where the Rose Bowl
Rose Bowl (stadium)
The Rose Bowl is an outdoor athletic stadium in Pasadena, California, U.S., in Los Angeles County. The stadium is the site of the annual college football bowl game, the Rose Bowl, held on New Year's Day. In 1982, it became the home field of the UCLA Bruins college football team of the Pac-12...
now stands. A reference to "freshwater shrimps" in a tributary of the Santa Ana River
Santa Ana River
The Santa Ana River is the largest river of Southern California in the United States. Its drainage basin spans four counties. It rises in the San Bernardino Mountains and flows past the cities of San Bernardino and Riverside, before cutting through the northern tip of the Santa Ana Mountains and...
from 1927 may also refer to S. pasadenae.
Its habitat was destroyed by channelization of streams. It has not been seen alive since 1933, despite extensive searching, and is the only Recent species of shrimp to have gone extinct.