Common names from other countries
Elasmobranquios (tiburones y rayas) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Sympterygia: Greek, syn, symphysis = grown together + Greek, pteryx = fin (Ref. 45335).
More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
Ecología
marino demersal; rango de profundidad 10 - 188 m (Ref. 57911). Subtropical; 20°S - 40°S, 60°W - 40°W (Ref. 57911)
Southwest Atlantic: Rio de Janeiro, Brazil to Rio de la Plata, Argentina.
Tamaño / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 150 cm TL macho / no sexado; (Ref. 57911); common length : 36.0 cm WD macho / no sexado; (Ref. 26408)
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Life cycle and mating behavior
Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
Pesquerías: comercial
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Preferred temperature (Ref.
115969): 11.3 - 21.8, mean 19.5 (based on 65 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00265 - 0.00627), b=3.02 (2.89 - 3.15), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nivel trófico (Ref.
69278): 3.7 ±0.55 se; based on food items.
Resiliencia (Ref.
120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).