Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ). Temperate; 0°C -
North America: coastal streams and lakes from the Siuslaw River south to the
Sixes rivers in Oregon, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.4 cm SL male/unsexed; (Ref. 87374)
Morphology | Morphometrics
(total): 9-12. Distinguished from all other species of Catostomus by having the following combination of characters: 65-80 scales on lateral line; 9-12 dorsal fin with rays; 14-38 infraorbital pores; gill 24-31 gill rakers in specimens >20 cm SL; gill rakers with spines in clusters; caudal peduncle depth 6.4-9.3% SL; lateral fields of scales with either no radii or extensions of anterior radii; and foramen for the ninth cranial nerve between the exoccipital and prootic (Ref. 87374).
Found in coastal streams and lakes as well as in brackish water. Observed in large schools, following the tide and venturing some distance into brackish water . Spawns over gravel and cobble (Ref. 87374).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Eschmeyer, W.N. and Fricke R. (eds.), 2011. Catalog of fishes. Updated internet version of 29 March 2011. Catalog databases of CAS cited in FishBase (website). (Ref. 86697)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00202 - 0.01242), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.9 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .