Classification / Names
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
Élasmobranches (requins et raies) (sharks and rays) >
Squatiniformes (Angel sharks) >
Squatinidae (Angel sharks)
Etymology: Squatina: Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned). (See ETYFish); varii: In honor of Richard P. Vari (1949-2016), National Museum of Natural History, Smithsonian Institution (Washington, D.C., USA), for his “outstanding” contributions to Neotropical ichthyology. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur 195 - 666 m (Ref. 114945). Tropical
Southwestern Atlantic: Brazil.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 101.5, range 95 - 108 cm
Max length : 124 cm TL mâle / non sexé; (Ref. 114945); 132.0 cm TL (female)
Description synthétique
Morphologie | Morphométrie
This species is distinguished from all western Atlantic congeners (except S. david) by the following characters: a higher number of vertebral centra, 138-150 (vs. 132-136 in argentina; 128-136 in guggenheim; 127-136 in occulta; 130-135 in dumeril; 121 in Squatina sp. NW1); differs from all southwestern Atlantic species and S. david in their dorsal coloration, with very few (<20) or no white circular spots (vs. dorsal surface of the skin having hundreds of white spots in argentina, occulta, david, guggenheim) (Ref. 117896).
Occurs along continental slope (Ref. 114945).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Vaz, D.F.B. and M.R. De Carvalho, 2018. New species of Squatina (Squatiniformes: Squatinidae) from Brazil, with comments on the taxonomy of Angel sharks from the Central and Northwestern Atlantic. Copeia 106(1):144-160. (Ref. 117896)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00293 - 0.01558), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 4.1 ±0.6 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (79 of 100).