Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Siluriformes (Catfishes) >
Ictaluridae (North American freshwater catfishes)
Etymology: Ictalurus: Greek, ichtys = fish + Greek, ailouros = cat (Ref. 45335); nazas: Name 'nazas' from the type locality of the species, Nazas-Aguanaval system.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Temperate
North America: Mexico.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 34.7 cm SL male/unsexed; (Ref. 137726)
Short description
Identification keys | Morphology | Morphometrics
Body shape (shape guide): elongated; Cross section: oval.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Avila-Treviño, E., G.F. Cardoza-Martínez, F. Alonzo-Rojo and R. Pérez-Rodríguez, 2025. Ictalurus nazas sp. nov., a new species of North American catfish (Siluriformes, Ictaluridae) from Mexico. ZooKeys 1248:33-51. (Ref. 137726)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00256 - 0.01357), b=3.07 (2.87 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (32 of 100).
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