Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Characiformes
(Characins) > Characidae
(Characins) > Stevardiinae
Etymology: Creagrutus: Greek, kreagreytos, -os, -on = to tear, to rip up the flesh (Ref. 45335); guanes: Named for the Guanes, an indigenous group that occupied the area of the Rio Fonce basin where the species is found; noun in apposition.. More on author: Vari.
Environment / Climate / Range
Freshwater; pelagic. Tropical, preferred ?
South America: Colombia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.3 cm SL male/unsexed; (Ref. 55562)
Morphology | Morphometrics
Diagnosis: Distinguished from its trans-Andean congeners by the following: unmodified, completely pored lateral line-scales; absence of a distinct patch of dark pigmentation on the basal portions of the caudal fin; absence of a stripe of dark pigmentation along the middle rays of the caudal fin; relatively wide third infraorbital; straight to slightly convex predorsal profile; caudal peduncle depth 11.31-13.42% of SL; possess 10 to 12 branched anal-fin rays and 36 to 38 lateral-lines scales. This species differs from its congeners by the following: distance from the dorsal-fin origin to the pelvic-fin origin 26.7-34.1% of SL; rotund or somewhat vertically-elongate humeral mark; reticulate pattern of dark pigmentation on the dorsal portion of body; maxilla with a thick anterior process; robust posterior portion and a distinct flexion in the region where it extends past the posterior limit of the premaxilla; absence of a bony plate on the dorsal surface of fourth basibranchial; presence of one or more teeth on the third infrapharyngobranchial; dorsolateral portion of the dilatator groove that is roofed to varying degrees by processes from the frontal and pterotic; and, absence of a narrow ring-like process of the scapula forming the anterior border of scapular foramen (Ref. 55562).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Torres-Mejia, M. and R.P. Vari, 2005. New specis of Creagrutus (Teleostei: Characiformes: Characidae) from the Río Magdalena Basin, Colombia. Copeia 2005(4):812-817. (Ref. 55562)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00212 - 0.01242), b=3.21 (3.00 - 3.42), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.3 ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .