Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
marino demersal. Subtropical; 9°S - 37°S
Southwest Atlantic: southern Brazil to southern Argentina.
Tamaño / Peso / Age
Madurez: Lm ?  range ? - ? cm
Max length : 60.0 cm TL macho / no sexado; (Ref. ); common length : 40.0 cm TL macho / no sexado; (Ref. 6077)
Short description
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 5 - 6; Radios blandos dorsales (total) : 33; Espinas anales: 3; Radios blandos anales: 33 - 41; Vértebra: 27. First dorsal fin composed of several short spines preceded by an anteriorly directed spine usually completely embedded under skin. Two detached anal spines anterior to soft anal fin. Lateral line curved and undulated, with more or less 10 branches anteriorly and fairly straight posteriorly (Ref. 27363). A black patch on the opercle is a conspicuous character of this species, thus the name signata (Ref. 3157).
Body shape (shape guide): fusiform / normal.
Maximum length assumed to be 1.5 * 40 = 60 cm TL (RF).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesquerías: escaso valor comercial
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Preferred temperature (Referencia
123201): 11.3 - 22, mean 19.3 °C (based on 75 cells).
Phylogenetic diversity index (Referencia
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00464 - 0.02154), b=2.94 (2.76 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.4 ±0.45 se; based on food items.
Resiliencia (Referencia
120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Assuming tm>=2).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
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Climate Vulnerability (Ref.
125649): High to very high vulnerability (75 of 100).
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Nutrients (Ref.
124155): Calcium = 82.5 [51.3, 199.0] mg/100g; Iron = 1.55 [0.91, 3.06] mg/100g; Protein = 19.4 [17.7, 21.2] %; Omega3 = 0.37 [0.24, 0.61] g/100g; Selenium = 32.6 [17.9, 64.8] μg/100g; VitaminA = 12.1 [3.9, 34.2] μg/100g; Zinc = 0.637 [0.443, 0.914] mg/100g (wet weight); based on
nutrient studies.