Squatina oculata  Bonaparte, 1840

Smoothback angelshark
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Squatina oculata   AquaMaps   Data sources: GBIF OBIS
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Image of Squatina oculata (Smoothback angelshark)
Squatina oculata
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Squatiniformes (Angel sharks) > Squatinidae (Angel sharks)
Etymology: Squatina: Latin, squatina, -ae = a kind of shark (Ref. 45335).   More on author: Bonaparte.

Environment / Climate / Range Ecology

Marine; demersal; depth range 5 - 500 m (Ref. 10719), usually 50 - 100 m (Ref. 247).   Subtropical; 47°N - 29°S, 17°W - 37°E

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 160 cm TL male/unsexed; (Ref. 247); common length : 120 cm TL male/unsexed; (Ref. )

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0. An angelshark with large thorns on snout and above eyes but not on midback, weakly bifurcated nasal barbels and weakly fringed anterior nasal flaps, the first dorsal-fin origin usually well behind the rear tips of pelvic fin, and prominent white spots on body (Ref. 247)

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

Eastern Atlantic: Mediterranean and Morocco to Angola.

Biology     Glossary (e.g. epibenthic)

Found on sand and mud bottom (Ref. 26999) of continental shelves and upper slopes (Ref. 247). Mostly between 50 and 100 m but deeper in the tropics (Ref. 247). Feeds on small fishes (Ref. 247). Ovoviviparous (Ref. 50449). Utilized fresh and dried salted for human consumption; liver oil and hide also used (Ref. 247).

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

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome: FAO.

IUCN Red List Status (Ref. 90363)

  Critically Endangered (CR) (A2bcd+3cd+4bcd)

Threat to humans

  Traumatogenic




Human uses

Fisheries: minor commercial
FAO(fisheries: species profile; publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref. 69278):  4.0   ±0.6 se; Based on diet studies.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153):  High to very high vulnerability (73 of 100) .
Price category (Ref. 80766):   Medium.