Rio seco en un desierto calido del norte de Sonora que alguna vez tuvo aguas cristalinas y repletas de vida. Increiblemente en el rio Sonoyta sobreviven escondidas dos especies endémicas de peces Cápsula 171 de Conexión Milenio de Milenio Tv por Fernando Seriñá Garza.
While biologists have been aware of the existence of native Mexican trouts for over a century, they have received little study. The few early studies that did muchmore than mention their existence began in the 1930s and continued into the early 1960s, focusing primarily on distributional surveys and taxonomic analyses. Starting in the 1980s the Baja California rainbow trout became the subject of more detailed studies, but very little remains known of mainland trouts of the Sierra Madre Occidental.
The Rio Yaqui drainage basin of northwestern Mexico comprises about 73,000 km of the most inaccessible and rugged terrain in western North America (Blásquez 1959). An average annual discharge of almost 2,800 ha2 makes the Rio Yaqui one of the major watersheds of that region (Tamayo and West 1964). The small percentage of this system that lies within southwestern United States contributes a substantial proportion of the native ichthyofauna of that area - 6 to 8 species of fishes were originally present, of which 5 did not occur elsewhere in the United States.
Marsh & Associates native fish labs have made available these resources.
From their Minckley library search page:
An Endangered Species within Organ Pipe Cactus National Monument: Historical Significance and Management Challenges
