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Elasmobranchii (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); david: In honor of the first author’s son David (pronounced dahveed), who passed away 7 March 2011 [a noun in apposition, without the patronymic “i”]. (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; depth range 51 - 272 m (Ref. 117896). Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Atlantic: northern South America (Venezuela and Surinam) to Panama.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 78.7 cm TL male/unsexed; (Ref. 110242); 74.8 cm TL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Anal spines: 0. Diagnosis: Mid-dorsal line lacking thorns or enlarged, sharp, pointed dermal denticles; eye-spiracle distance larger than 1.5 times eye diameter in specimens larger than 60 cm TL; each nasal flap with 2 rod-like barbels, outer barbel divided; coloration grayish to brownish yellow, male dark-spotted, females with abundant whitish spots (Ref. 110242).

Currently known from depths between 100-151m (Ref. 110242).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Compagno, Leonard J.V. | Collaborators

Acero, A.P., J.J. Tavera, R. Anguila and L. Hernández, 2016. A new southern Caribbean species of angel shark (Chondrichthyes, Squaliformes, Squatinidae), including phylogeny, and tempo of diversification of american species. Copeia 104(2):577-585. (Ref. 110242)

IUCN Red List Status (Ref. 130435)

Near Threatened (NT) (A2d); Date assessed: 31 July 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.9 ±0.6 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Preliminary low fecundity).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (51 of 100).

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Squatina david Acero P., Tavera, Anguila & Hernández, 2016