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Squatina aculeata  Cuvier, 1829

Sawback angelshark
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Squatina aculeata
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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: Cuvier.

Environment / Climate / Range Ecology

Marine; demersal; depth range 30 - 500 m (Ref. 247).   Subtropical, preferred ?; 43°N - 19°S, 18°W - 30°E

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

Eastern Atlantic: western Mediterranean, Morocco, Senegal, Guinea to Nigeria, Gabon to Angola.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 124 - ? cm
Max length : 188 cm TL male/unsexed; (Ref. 247); common length : 100.0 cm TL male/unsexed; (Ref. 26999)

Biology     Glossary (e.g. epibenthic)

Found mainly on muddy bottom (Ref. 26999). Feeds on small sharks and jacks. Ovoviviparous (Ref. 50449). Utilized dried salted and fresh for human consumption; liver oil and hide also utilized (Ref. 247).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Ovoviviparous, embryos feed solely on yolk (Ref. 50449).

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. (Ref. 247)

IUCN Red List Status (Ref. 115185)

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

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

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

More information

Countries
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Ecology
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Internet sources

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

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00278 - 0.01974), b=3.04 (2.80 - 3.28), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.0   ±0.4 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 (75 of 100) .
Price category (Ref. 80766):   Medium.