Élasmobranches (requins et raies) (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: Cope.
Issue
Four nominal species of Psammobatis (asper, caudispina, chilcae, maculatus), all from Hildebrand, 1946, are considered valid in Eschmeyer (CofF ver. May 2011: Ref. 86870) following Chirichigno & Vélez (1998), but J. McEachran confirmed their synonym status of Sympterygia brevicaudata (Cope, 1877) (pers. comm., 11/2003).
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur ? - 18 m (Ref. 58018). Subtropical; 3°S - 37°S
Southeast Pacific: Ecuador to central Chile. Two specimens have been recorded from Uruguay but these may be in error.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 38.0 cm TL mâle / non sexé; (Ref. )
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Max. length (Johnny Labbe, pers. comm., 2000).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): 15.3 - 21, mean 19.5 °C (based on 100 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00273 - 0.01106), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.7 ±0.7 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (28 of 100).
Nutrients (Ref.
124155): Calcium = 42.7 [6.6, 208.3] mg/100g; Iron = 0.876 [0.232, 2.569] mg/100g; Protein = 17.6 [14.9, 20.1] %; Omega3 = 0.444 [0.145, 1.605] g/100g; Selenium = 11 [3, 37] μg/100g; VitaminA = 17.9 [5.8, 55.9] μg/100g; Zinc = 0.73 [0.34, 1.35] mg/100g (wet weight);
