World Library  
Flag as Inappropriate
Email this Article

Argentine angelshark

Article Id: WHEBN0007332011
Reproduction Date:

Title: Argentine angelshark  
Author: World Heritage Encyclopedia
Language: English
Subject: Squatinidae, Eastern angelshark, Western angelshark, Sawshark, Sand devil
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Argentine angelshark

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

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

Contents

  • Measurements 1
  • Identification 2
  • Distribution & Range 3
  • Climate & Habitat 4
  • Behaviour 5
  • Biology 6
  • Status 7
  • Threat to Humans 8
  • Resilience & Vulnerability 9
  • References 10

Measurements

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

Identification

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

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

Climate & Habitat

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

Behaviour

Unknown.

Biology

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

Status

IUCN Red List: Endangered.

Threat to Humans

Traumatogenic.

Resilience & Vulnerability

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

References

  • 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
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.