Population Trends
The Yaqui Catfish survived in San Bernardino Creek until spring flows diminished because of groundwater pumping causing the creek dried up. The remaining habitat at San Bernardino Creek was severely trampled by livestock, making it uninhabitable. The catfish were introduced in 1899 into the Santa Cruz River System (in reservoir fed by Monkey Spring) where they persisted until the 1950s. A small population of 350 fish has been re-introduced into the Rio Yaqui on the Northern most portion of the San Bernardino National Wildlife Refuge in November 1997, however outside of the San Bernardino refuge the Yaqui Catfish have become extinct from United States waters.
Read more about this topic: Bagre De Yaqui
Famous quotes containing the words population and/or trends:
“We in the West do not refrain from childbirth because we are concerned about the population explosion or because we feel we cannot afford children, but because we do not like children.”
—Germaine Greer (b. 1939)
“A point has been reached where the peoples of the Americas must take cognizance of growing ill-will, of marked trends toward aggression, of increasing armaments, of shortening tempers—a situation which has in it many of the elements that lead to the tragedy of general war.... Peace is threatened by those who seek selfish power.”
—Franklin D. Roosevelt (1882–1945)