SPECIES CODE: E00Z V01
Listed Endangered on
Note: All descriptions are abstracted or excerpted from the Recovery Plan (1994), and the Federal Register (2000).
Woundfin is a member of the Cyprinidae family. The woundfin is considered the most highly specialized species in the genus Plagopterini (Miller and Hubbs 1960). The species rarely achieves a standard length of more than 7.5 cm (3in). Woundfin are opportunistic omnivores, and will feed on filamentous algae, detrital material, tamarisk seeds, and insects depending on availability.
REPRODUCTION AND DEVELOPMENT:
Seasonal rains and increased flows from snow melt runoff induce spawning, and spawning takes place during the period of declining spring flows. The spawning period is from April to July.
RANGE AND POPULATION LEVEL:
the woundfin occurred from near the junction of the Salt and
for the mainstem of the
Adult and juvenile woundfin inhabit runs and quiet waters adjacent to riffles with sand and sand/gravel substrates. Adults are generally found inhabits with water depths between 0.15 and 0.43 meters (m) (0.5 and 1.4 feet (ft)) with velocities between 0.24 and 0.49 meters per second (m/s) (0.8 and 1.6 ft/s). Juveniles select areas with slower and deeper water, while larvae are found in backwaters and stream margins which are often associated with growths of filamentous algae.
The decline of the species is attributed to habitat loss and modification, and competition from introduced exotic fish species. Building of dams and associated reservoirs, water diversion structures, canals, laterals, aqueducts, and the dewatering of streams cause loss or degradation of available habitat. There are 10 known introduced fish species, however, the red shiner (Cyprinella lutrensis) and the black bullhead (Ameiurus melas) are the most abundant. Red shiners compete with woundfin for food and habitat, and possibly feed on woundfin larvae. Other predators on woundfin include piscivorous birds such as kingfishers and herons, soft-shelled turtles and other vertebrate species.
The species continues to be threatened by habitat loss and modification, as well as competition from introduced nonnative fish, and predation.