Oncorhynchus apache
No common name
Federal:
Threatened
NS
G3
Collection Details
Specimens
Photos
There are no photos available for this taxon yet.
Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Salmoniformes
Salmonidae (Trouts and Salmons)
Oncorhynchus
Oncorhynchus apache
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
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Characters
Body shape: fusiform / normal.
Distribution
North America: Upper Salt River and Little Colorado River systems (Colorado River drainage) in Arizona, USA.
Habitat Associations
Freshwater. demersal.
Biology
Adults inhabit clear, cool mountain headwaters and creeks (generally above 2500 m elevation), and mountain lakes. Entire life history is spent in freshwater (Ref. 46888). A 95% (stream km) reduction in range has resulted due to hybridization with Oncorhynchus mykiss and competition from Salvelinus fontinalis and Salmo trutta.
Max length: 58.0 cm TL; common length: 25.0 cm TL; max weight: 2360 g.
Reproductive mode: dioecism; fertilization: external; nonguarders (brood hiders).
IUCN Red List Status: Critically Endangered (CR), assessed 1996-08-01. Resilience: Low (Preliminary K or Fecundity.).
Commercial or Environmental Importance
Fisheries: subsistence fisheries; gamefish.
References
Breder, C.M. and D.E. Rosen (1966) Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
Page, L.M. and B.M. Burr (1991) A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p.
IGFA (2001) Database of IGFA angling records until 2001. IGFA, Fort Lauderdale, USA.
Comments On Oncorhynchus apache