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Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Etymology: Umbrina: Latin, umbra, -ae = shadow, in the sense of phantom; due to its quick movements (Ref. 45335).
Eponymy: Mildred ‘Milly’ Miller was the wife of the author, American ichthyologist Robert Victor Miller. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina bentopelagisk; djupintervall ? - 183 m (Ref. 58018). Tropical
Western Atlantic: Deep water off Colombia (Ref. 26938).
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Taggstrålar i ryggfenan (totalt) : 10 - 11; Mjukstrålar i ryggfenan (totalt) : 22 - 23; Mjukstrålar i analfenan: 7. Body dark, oblong, and compressed. Mouth subterminal, chin with a short barbel perforated with a pore on front. Inside opercle jet black (Ref 51721).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
McAllister, D.E., 1990. A working list of fishes of the world. Copies available from D.E. McAllister, Canadian Museum of Nature, P.O. Box 3443, Ottawa, Ontario K1P 6P4, Canada. 2661 p. plus 1270 p. Index. (Ref. 27116)
IUCN Red List Status (Ref. 130435: Version 2024-2)
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=0.00933 (0.00472 - 0.01845), b=3.08 (2.92 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).