Centrophorus granulosus
No common name
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Chondrichthyes (Cartilaginous Fishes)
Squaliformes (Dogfish Sharks)
Centrophoridae (Gulper Sharks)
Centrophorus
Centrophorus granulosus
Description
This species account was compiled from
Composite (multiple sources) (McEachran, J.D. and J.D. Fechhelm. Fishes of the Gulf of Mexico. University of Texas Press, Austin.)
and processed using AI-assisted text extraction.
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Characters
Snout moderately long, about equal to mouth width but shorter than distance from mouth to origin of pectoral fin; anterior nasal flap short; teeth bladelike, forming interlocked cutting edge in both jaws; upper jaw with 33-40 tooth rows, lower jaw with 30; both dorsal fins preceded by long, grooved spine; origin of first dorsal fin above axil of pectoral fin; second dorsal fin nearly as high as first dorsal fin, its base about three-fourths that of first dorsal fin; distance between dorsal fins about equal to distance from tip of snout to axil of pectoral fin; posterior corner of pectoral fin expanded into narrow acute lobe; length of inner margin of pectoral fin greater than distance from second dorsal spine to origin of upper caudal fin lobe; upper lobe of caudal fin relatively long, ventral lobe moderately developed, subterminal notch distinct; dermal denticles nonoverlapping, low, blocklike, with broad, transversely rhomboidal crowns on bases without pedicels
Light brown dorsally and lighter ventrally
Distribution
North Carolina to the northern Gulf of Mexico
Habitat Associations
Tropical to temperate seas between 100 and 1,200 m
Biology
Maximum known size is about 150 cm TL
Young are born at about 30 to 42 cm TL
A common deepwater dogfish of the outer continental shelves and upper slopes, commonest below 200 m (Ref. 247); usually benthic and epibenthic at depths from 50-1440 m with most records from 200-600 m (Compagno, pers. comm. 07/07). Solitary (Ref. 26340). Adults feed mainly on bony fishes such as hake, epigonids, lanternfish, herring, smelts, cods, rattails, squid and crustaceans (Ref. 247, IUCN workshop 07/07). Males mature at about 105-118 cm TL (Ref. 94782). Ovoviviparous (Ref. 50449). This species is fished in Eastern Atlantic by bottom trawls, long lines, fixed bottom nets, hook and line and pelagic trawls; caught and discarded, or utilised from by-catch fisheries (IUCN discussion 07/07). Marketed smoked and dried salted for human consumption; also processed into fishmeal and a source of liver oil for squalene (Ref. 247).
IUCN Red List Status: Endangered (EN), assessed 2024-02-27. Resilience: Low (Fec assumed to be <100).
Commercial or Environmental Importance
Fisheries: minor commercial.
References
Bigelow et al. 1955
Bigelow and Schroeder 1957
Applegate et al. 1979
Castro 1983
Compagno 1984
McEachran and Branstetter 1984
Breder, C.M. and D.E. Rosen (1966) Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
Sierra, L.M., R. Claro and O.A. Popova (1994) Alimentacion y relaciones tróficas. p. 263-284. In Rodolfo Claro (ed.) Ecología de los Peces Marinos de Cuba. Instituto de Oceanología Academia de Ciencias de Cuba and Centro de Investigaciones de Quintana Roo, Mexico.
Cortés, E. (1999) Standardized diet compositions and trophic levels of sharks. ICES J. Mar. Sci. 56:707-717.
White, W.T., D.A. Ebert, G.J.P. Naylor, H.-H. Ho, P. Clerkin, A. Veríssimo and C.F. Cotton (2013) Revision of the genus Centrophorus (Squaliformes: Centrophoridae): Part 1 -Redescription of Centrophorus granulosus (Bloch & Schneider), a senior synonym of C. acus and C. niaukang Teng. Zootaxa 3752(1):035-072.
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