Common names from other countries
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Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Etymology: Isopisthus: Greek, isos = equal + Greek, opisthe = behind (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien; brak water demersaal; diepte 1 - 45 m (Ref. 3702). Tropical; 10°N - 27°S, 83°W - 34°W
Western Atlantic: Costa Rica to southern Brazil.
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturity: Lm 15.9  range ? - ? cm
Max length : 41.5 cm TL mannelijk / geslacht onbekend; (Ref. 122735); common length : 20.0 cm TL mannelijk / geslacht onbekend; (Ref. 3702); max. gepubliceerd gewicht: 740.00 g (Ref. 122735)
Dorsale stekels (totaal) : 8 - 9; Dorsale zachte stralen (totaal) : 19 - 20; Anale stekels: 2; Anale zachte stralen: 18 - 19. Silver grey, darker above. A diffuse black spot at pectoral-fin bases, fins pale to yellowish. Mouth large, strongly oblique, lower jaw projecting. Upper jaw with a pair of large canine-like teeth at tip. Chin without barbel or pores, lower margin of snout with 2 marginal pores. Two widely separated dorsal fins. Gas bladder with a pair of horn-like anterior appendages. Sagitta (large earstone) moderately thick and oval (Ref 51721).
Found in shallow coastal waters over sandy mud or soft mud bottoms (Ref. 3702). Feeds mainly on small shrimps (Ref. 3702). Important food fish.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Cervigón, F., 1993. Los peces marinos de Venezuela. Volume 2. Fundación Científica Los Roques, Caracas,Venezuela. 497 p. (Ref. 9626)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
CITES (Ref. 131153)
Not Evaluated
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van minder commercieel belang; aas: usually
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Estimates based on models
Preferred temperature (Ref.
115969): 24.8 - 27.9, mean 27.4 (based on 110 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00727 - 0.00867), b=3.07 (3.05 - 3.09), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
Trofisch niveau (Ref.
69278): 4.0 ±0.4 se; based on diet studies.
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (32 of 100).