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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); casattii: Named for Lilian Casatti..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Tropical
South America: Orinoco River, Venezuela.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm ?, range 27 - ? cm
Max length : 33.0 cm SL mâle / non sexé; (Ref. 36888)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 11; Rayons mous dorsaux (Total) : 31 - 36; Épines anales: 2; Rayons mous anaux: 6 - 7. Body nearly uniform silvery, lighter ventrally; darker dorsally; no conspicuous spots but with diffuse dark areas along base of dorsal fin, on margin of spinous and soft dorsal fin, and hind margin of caudal fin; base of pectoral fins with a brown spot. Eye elliptical, 5.3-6.2 in HL; second anal spine length 4-6.3 (mean 5.2) in HL. Anus-anal distance 2.8-5.1 (mean 4.2) in HL. Tips of pelvic-fin rays not extending to anus. Anterior portion of dorsal fin with 10 spines, posterior with 1 and usually 33-34 soft rays. Sagitta elongate and oblong; ostium apple-shape; tip of caudal not extending to below hind margin of the ostium, postero-ventral angle rounded. Caudal fin rhomboid (Ref. 44362).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Aguilera, O. and D.R. de Aguilera, 2001. A new species of croaker Plagioscion (Perciformes, Sciaenidae) from the Orinoco River Basin, Venezuela. Memoria 60(153):61-67. (Ref. 44362)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00413 - 0.01752), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.9 ±0.5 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).