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Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Etymology: Plagioscion: Greek, plagios = oblique + Greek, skiaina, skion = barbel, red mullet (Ref. 45335).
More on author: Heckel.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk; flodvandrande (Ref. 51243). Tropical; 22°C - 27°C (Ref. 12468)
South America: Amazon, Orinoco, Paraná, Paraguay, and São Francisco River basins and rivers fo Guianas.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 20.7  range ? - ? cm
Max length : 80.0 cm TL hane/ej könsbestämd; (Ref. 36888); publicerad maxvikt: 4.5 kg (Ref. 40637)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 11; Mjukstrålar i ryggfenan (totalt) : 30 - 34; Taggstrålar i analfenan: 2; Mjukstrålar i analfenan: 5 - 6. Vertebral column extends into caudal fin. Black spot near the base of the pectorals. Dorsal posterior margin of operculum slightly toothed.
Body shape (shape guide): fusiform / normal; Cross section: oval.
Occupies very diverse biotopes and carries out its biological cycle in freshwater as well as in brackish water (Ref. 27188). Juveniles feed on larvae of crustaceans (especially Macrobrachium), aquatic insects and copepods. Adults prey on fish. Captured during the rainy season (Ref. 35237).
Casatti, L., 2003. Sciaenidae (Drums or croakers). p. 599-602. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36888)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Vattenbruk: kommersiell; sportfisk: ja; Akvarium: Kommersiell
Verktyg
Särskilda rapporter
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Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00797 - 0.00952), b=3.08 (3.06 - 3.10), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.4 ±0.5 se; based on diet studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.11-0.22; tm=1-1.5).
Sårbarhet i fisket (Ref.
59153): High vulnerability (62 of 100).
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Näringsämnen (Ref.
124155): Calcium = 47.4 [22.8, 100.6] mg/100g; Iron = 0.868 [0.407, 1.560] mg/100g; Protein = 18.9 [17.6, 20.2] %; Omega3 = 0.344 [0.122, 0.954] g/100g; Selenium = 73.9 [29.6, 172.3] μg/100g; VitaminA = 85.8 [22.4, 311.3] μg/100g; Zinc = 1.18 [0.79, 1.79] mg/100g (wet weight);