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Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Etymology: Pachyurus: Greek, pachys = fat + Greek, oura = tail (Ref. 45335); stewarti: Named for Dr. Donald Stewart (formerly at FMNH) for his contributions to the knowledge of Neotropical fishes..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water pelagisch. Tropical
South America: only known from the Río Napo and Río Aguarico, eastern Ecuador, in the western portion of the Rio Amazonas basin.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 19.2 cm SL mannelijk / geslacht onbekend; (Ref. 54848)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
A species of Pachyurus with a unique coloration pattern of about twelve brown vertical bars and ellipsoid blotches on the side of trunk and a thick horizontal stripe from the middle of the caudal peduncle to the front of the caudal-fin base.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Casatti, L. and N.L. Chao, 2002. A new species of Pachyurus Agassiz 1831 (Teleostei: Perciformes: Sciaenidae) from the Río Napo basin, Eastern Ecuador. Zootaxa 38:1-7. (Ref. 54848)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00415 - 0.01744), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).