Diagnostic Description
provided by FAO species catalogs
fieldmarks: Two dorsal fins with ungrooved large spines, first dorsal spine origin in front of pectoral rear tips, first dorsal spine about as long as dorsal fin base, pectoral fins falcate and with angular free rear tips and deeply concave posterior margins, no white spots on sides, oblique-cusped cutting teeth in both jaws, no subterminal notch on caudal fin, no anal fin, and upper precaudal pit and lateral keels on caudal peduncle. Body fairly slender. Snout subangular, slightly pointed, fairly broad, and moderately long, diagonal distance from snout tip to excurrent aperture of nostril much less than that from excurrent aperture to upper labial furrow, preoral snout about 1.3 to 1.4 times mouth width, preorbital snout less than twice as long as eye length; eyes considerably closer to snout tip than first gill slit; nostrils much closer to snout tip than mouth; anterior nasal flap with a small posterior secondary lobe, much narrower than space between its base and inner end of nostril. First dorsal spine long, nearly equal to fin base and with tip reaching nearly to apex of fin; second long, about as high as fin, and less than 6% of total length; first dorsal fin anteriorly situated, with fin origin just behind pectoral insertions and spine origin over their inner margins and well in front of their rear tips; first dorsal moderately high, height about half length from origin to rear tip; second dorsal markedly smaller than first, with height less than 6% of total length; pectoral fins fairly wide but strongly falcate, posterior margins deeply concave, rear tips angular and pointed; pelvic midbases about equidistant between first and second dorsal bases; caudal fin narrow-lobed and moderately long, with a long ventral lobe and strongly notched postventral margin. Precaudal pits well-developed. Lateral trunk denticles small, lanceolate and unicuspidate in adults. Grey above, lighter below, without spots, dorsal fins with black tips and pectorals, pelvics and caudal with white edges.
- Compagno & Vergara, 1978
- Sadowsky & Moreira, 1981
- bibliographic citation
- 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. Compagno, L.J.V.1984FAO Fisheries Synopsis. , (125) Vol.4, Part 1.
- author
- Food and Agriculture Organization of the UN
Distribution
provided by FAO species catalogs
Western Atlantic: North Carolina to Florida (USA), Cuba, Hispanola, northern Gulf of Mexico (Mexico to Florida); southern Brazil, Argentina.
- bibliographic citation
- 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. Compagno, L.J.V.1984FAO Fisheries Synopsis. , (125) Vol.4, Part 1.
- author
- Food and Agriculture Organization of the UN
Size
provided by FAO species catalogs
Maximum total length possibly to 110 cm, common to 75 cm and maturing at 50 cm or less.
- bibliographic citation
- 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. Compagno, L.J.V.1984FAO Fisheries Synopsis. , (125) Vol.4, Part 1.
- author
- Food and Agriculture Organization of the UN
Brief Summary
provided by FAO species catalogs
A common offshore warm-temperate and tropical shark of the outer continental shelf and uppermost slopes, found on or near the bottom in large, dense schools,at depths between 60 and 380 m; young occur in shallower water than adults. Ovoviviparous, number of young about 10 per litter. Has an unusual huge isopod parasite that lives in its buccal cavity.Probably eats bottom fishes and invertebrates.
- bibliographic citation
- 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. Compagno, L.J.V.1984FAO Fisheries Synopsis. , (125) Vol.4, Part 1.
- author
- Food and Agriculture Organization of the UN
Benefits
provided by FAO species catalogs
Taken in commercial bottom trawls primarily in the northern Gulf of Mexico. Fished for its liver, which yields oil and vitamins. Seldom utilized for food.
- bibliographic citation
- 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. Compagno, L.J.V.1984FAO Fisheries Synopsis. , (125) Vol.4, Part 1.
- author
- Food and Agriculture Organization of the UN
Diagnostic Description
provided by Fishbase
A slim, gray shark with tips of dorsal fins black and edges of pectoral, pelvic and caudal fins white; two dorsal fins each with strong, ungrooved spine at front edge (Ref. 26938).
- Recorder
- Grace Tolentino Pablico
Life Cycle
provided by Fishbase
Ovoviviparous, with about 10 young per litter (Ref. 247). Distinct pairing with embrace (Ref. 205).
Biology
provided by Fishbase
Inhabits continental shelves and uppermost slopes. Found in 60 to 380 m deep (Ref. 26938). Found on or near the bottom in large, dense schools. Probably feeds on bottom fishes and invertebrates. Ovoviviparous, with about 10 young per litter. A huge parasite (isopod) lives in its buccal cavity. Seldom used for food, but taken in commercial catches for its liver which yields oil and vitamins. Maximum depth reported taken from Ref. 55584.
- Recorder
- Kent E. Carpenter
Importance
provided by Fishbase
fisheries: minor commercial; price category: medium; price reliability: questionable: based on ex-vessel price for species in this genus
- Recorder
- Kent E. Carpenter
Cuban dogfish
provided by wikipedia EN
The Cuban dogfish (Squalus cubensis) is a dogfish, a member of the family Squalidae in the order Squaliformes.
Distribution and habitat
It is found in the Western Atlantic from North Carolina to Florida, in the Gulf of Mexico, around Cuba, Hispaniola, southern Brazil, and Argentina. It inhabits continental shelves and uppermost slopes at depths from 60 to 380 m.
Description
It is a slim, gray shark with black tips to its dorsal fins black and at the edges of its pectoral fins, its pelvic and caudal fins are white; It possess a spine at front edge of each of its two dorsal fans. Its length may reach 110 cm.[1] It probably feeds on bottom fishes and invertebrates. The isopod parasites which commonly infest the mouth and gills of marine fish are unusually large in the Cuban dogfish. Its reproduction is ovoviviparous, with 10 pups in a litter. It is not generally used for food, but taken commercially for the oil and vitamins extracted from its liver.[1][2]
Gallery
References
-
^ a b c Cotton, C.F., Derrick, D., Herman, K., Pacoureau, N. & Dulvy, N.K. 2020. Squalus cubensis. The IUCN Red List of Threatened Species
-
^ Froese, Rainer; Pauly, Daniel (eds.) (2006). "Squalus cubensis" in FishBase. Sept 2006 version.
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
Cuban dogfish: Brief Summary
provided by wikipedia EN
The Cuban dogfish (Squalus cubensis) is a dogfish, a member of the family Squalidae in the order Squaliformes.
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
Distribution
provided by World Register of Marine Species
Western Atlantic: North Carolina to Florida, Gulf of Mexico, Cuba, Hispanola; southern Brazil and Argentina
North-West Atlantic Ocean species (NWARMS)
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board
Habitat
provided by World Register of Marine Species
benthic
North-West Atlantic Ocean species (NWARMS)
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board