Delta smelt
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The delta smelt is an endangered slender-bodied smelt, about 5 to 7 cm long, in the family Osmeridae. Endemic to the upper Sacramento-San Joaquin Estuary of California, it mainly inhabits the freshwat
Hypomesus transpacificus
Longfin smelt
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The longfin smelt is a small anadromous fish native to the North Pacific, and adjacent streams and lakes. Its name is derived from its long pectoral fins, which extend almost to the base of its pelvic
Delta smelt
…to farming. However, these efforts have not prevented the species from becoming functionally extinct in the wild. Delta smelt is easily confused with longfin smelt (Spirinchus thaleichthys). They are both small, pelagic fish species native to the estuarine and coastal waters of the Pacific coast, but they exhibit…
Spirinchus thaleichthys
Photo: Rene Reyes, Tracy Fish Collection Facility, March 7 2008, US Bureau of Reclamation
Photo: Rene Reyes, Tracy Fish Collection Facility, February 14 2008, US Bureau of Reclamation