Klassifizierung / Names
Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Creagrutinae
Etymology: Creagrutus: Greek, kreagreytos, -os, -on = to tear, to rip up the flesh (Ref. 45335); nigrotaeniatus: Derived from the Greek nigro, meaning black, and taenia, meaning ribbon, in reference to the black lateral longitudinal stripe on the body.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser benthopelagisch. Tropical
South America: Upper rio Juruena in Brazil.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 4.3 cm SL Männchen/unbestimmt; (Ref. 94995)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenweichstrahlen (insgesamt) : 10; Afterflossenweichstrahlen: 11 - 13; Wirbelzahl: 36 - 37. Creagrutus nigrotaeniatus is distinguished from all its congeners, except C. cracentis and C. maxillaris, by having 8-10 dentary teeth (vs. 4-7) and 4-5 post-anal scales (vs. 1-2). It further differs from most congeners (except C. varii, C. gephyrus, C. cracentis, and C. maxillaris) by having dentigerous surface of the premaxilla longitudinally elongate from ventral view (vs. dentigerous surface triangular). In addition, it can be diagnosed from C. varii by having 8-10 branched rays on anal fin (vs. 15-17) and from C. gephyrus by having 4-5 maxillary teeth (vs. 7-11). It is distinct from C. cracentis and C. maxillaris by having a dark mid-lateral stripe extending from the posterior margin of orbit to the distal tip of middle caudal fin rays (vs. absence of mid-lateral stripe), anterior dentary teeth tricuspid (vs. pentacuspid), and 4-5 maxillary teeth (vs. 8-12) (Ref. 94995).
Body shape (shape guide): fusiform / normal.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Dagosta, F.C.P. and M.N.L. Pastana, 2014. New species of Creagrutus Günther (Characiformes: Characidae) from rio Tapajós basin, Brazil, with comments on it phylogenetic position. Zootaxa 3765(6):571-582. (Ref. 94995)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00645 - 0.03717), b=3.00 (2.79 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 2.6 ±0.1 se; based on size and trophs of closest relatives
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (10 of 100).
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