Argentine angelshark

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Argentine angelshark
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Squatiniformes
Family: Squatinidae
Genus: Squatina
Species:
S. argentina
Binomial name
Squatina argentina
(Marini, 1930)
Squatina argentina distmap.png
Range of Argentine angelshark (in blue)

The Argentine angelshark (Squatina argentina) is an angelshark of the family Squatinidae.

Measurements[edit]

Born: N/A.; Mature: ~ 100.0 cm - 120 cm TL; Max: 138 (?170) cm TL.

Identification[edit]

Colour: Are a purplish-brown color with many scattered dark brown spots (with no white), that are mostly in circular groups around a central spot. No ocelli. Obtains paler dorsal fins. Body: Has simple spatulate nasal barbels. Also slightly fringed or a smooth anterior nasal flaps with no triangular lobes on lateral head folds. Has concave between its eyes. Obtains enlarged thorns on snout, and not back. Its pectoral fins are large, broad, and obtusely angular. Convex leading edge forming a very distinct 'shoulder'.

Distribution & range[edit]

Southwest Atlantic: from southern Brazil down south to Patagonia. 19°S - 53°S, 68°W - 38°W.

Climate & habitat[edit]

Subtropical; continental shelf and upper slope, demersal, marine. Found 50 – 320 m (usually 100 – 400 m) down.

Behaviour[edit]

Unknown.

Biology[edit]

Diet: Feeds on demersal fishes, shrimp, and squid. Reproduction: Are ovoviviparous, birth about 7 to 11 pups per litter.

Threat to humans[edit]

Traumatogenic.

Resilience & vulnerability[edit]

Very low, minimum population doubling time more than 14 years; high to very high vulnerability.

References[edit]

  1. ^ Vooren, C.M. & Chiaramonte, G.E. 2006. Squatina argentina. The IUCN Red List of Threatened Species 2006: e.T39329A10202418. https://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T39329A10202418.en. Downloaded on 26 October 2017.
  • Froese, Rainer and Pauly, Daniel, eds. (2006). "Squatina argentina" in FishBase. July 2006 version.
  • Compagno, Dando, & Fowler, Sharks of the World, Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2