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Siluriformes (Catfishes) >
Ictaluridae (North American freshwater catfishes)
Etymology: Noturus: Greek, noton = back + Greek, oura = tail; refred to the position of the tail over the back (Ref. 45335); elegans: elegans meaning elegant, referring to the handsome pigment pattern (Ref. 10294).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk. Temperate; 37°N - 34°N
North America: upper Green River drainage in Kentucky and Tennessee, USA; 1 record from Roaring River (Cumberland River drainage) in Tennessee (Ref. 86798). Individuals from the Duck River originally allocated to N. elegans are N. fasciatus, the latter restricted to the Duck River system and two minor tributaries of the lower arm of the Tennessee River, Tennessee (Ref. 56218).
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.4 cm TL hane/ej könsbestämd; (Ref. 86798); common length : 5.1 cm TL hane/ej könsbestämd; (Ref. 12193)
Inhabits rocky riffles and runs of clear creeks and small rivers (Ref. 86798).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00250 - 0.01326), b=3.07 (2.87 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
