Table of Contents
Overview
Comprehensive Description
Biology
A deepwater bottom shark found on the insular slopes off the leeward islands. Oviparous (Ref. 50449). Poorly known. Not utilized at present.
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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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
http://www.fishbase.org/references/FBRefSummary.php?id=244&speccode=763
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Distribution
Western Central Atlantic: leeward islands off Antigua and Anguilla.
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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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
http://www.fishbase.org/references/FBRefSummary.php?id=244&speccode=763
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Range Description
Western Central Atlantic where it is known from various localities in the Caribbean: Leeward Islands off Antigua and Anguilla, Netherlands Antilles, Straits of Florida, Colombia and Venezuela (Compagno in prep. b, Compagno et al. 2005).
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Physical Description
Size
Max. size
43.0 cm TL (male/unsexed; (Ref. 244)); 45 cm TL (female)
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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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
http://www.fishbase.org/references/FBRefSummary.php?id=244&speccode=763
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Type Information
Paratype for Apristurus canutus Springer & Heemstra
Catalog Number: USNM 206180
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1967
Locality: Near Antigua, B.W.I., Antigua, Leeward Islands, Antigua and Barbuda, Lesser Antilles, Caribbean Sea, Atlantic
Depth (m): 841
Vessel: Oregon
Catalog Number: USNM 206180
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1967
Locality: Near Antigua, B.W.I., Antigua, Leeward Islands, Antigua and Barbuda, Lesser Antilles, Caribbean Sea, Atlantic
Depth (m): 841
Vessel: Oregon
- Paratype: Springer, S. & Heemstra. 1979. NOAA Technical Report, NMFS Circular. No. 422: 16, figs. 10-13; table1.
© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
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Holotype for Apristurus canutus Springer & Heemstra
Catalog Number: USNM 206176
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1969
Locality: NW Atlantic Ocean, Leeward Islands, Leeward Islands, Lesser Antilles, Caribbean Sea, Atlantic
Depth (m): 699
Vessel: Oregon II
Catalog Number: USNM 206176
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1969
Locality: NW Atlantic Ocean, Leeward Islands, Leeward Islands, Lesser Antilles, Caribbean Sea, Atlantic
Depth (m): 699
Vessel: Oregon II
- Holotype: Springer, S. & Heemstra. 1979. NOAA Technical Report, NMFS Circular. No. 422: 16, figs. 10-13; table1.
© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
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Ecology
Habitat
Environment
bathydemersal; marine; depth range 500 - 1000 m (Ref. 55584)
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Kiraly, S.J., J.A. Moore and P.H. Jasinski 2003 Deepwater and other sharks of the U.S. Atlantic Ocean Exclusive Economic Zone. Mar. Fish. Rev. 65(4):1-64. (Ref. 55584)
http://www.fishbase.org/references/FBRefSummary.php?id=55584&speccode=652
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Habitat and Ecology
Habitat and Ecology
Systems
Recorded from the insular slopes at depths of 521 to 915 m (Compagno et al. 2005). Virtually nothing known of its biology. Maximum size 45.5 cm total length (TL): males are adult at 42.8 cm TL, and females are adult at 39.5 to 45.5 cm TL (Compagno in prep. b).
Systems
- Marine
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Depth range based on 7 specimens in 1 taxon.
Water temperature and chemistry ranges based on 7 samples.
Environmental ranges
Depth range (m): 530 - 841
Temperature range (°C): 6.272 - 9.452
Nitrate (umol/L): 26.630 - 31.016
Salinity (PPS): 34.766 - 35.079
Oxygen (ml/l): 2.847 - 3.141
Phosphate (umol/l): 1.648 - 1.884
Silicate (umol/l): 18.071 - 26.632
Graphical representation
Depth range (m): 530 - 841
Temperature range (°C): 6.272 - 9.452
Nitrate (umol/L): 26.630 - 31.016
Salinity (PPS): 34.766 - 35.079
Oxygen (ml/l): 2.847 - 3.141
Phosphate (umol/l): 1.648 - 1.884
Silicate (umol/l): 18.071 - 26.632
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Water temperature and chemistry ranges based on 7 samples.
Environmental ranges
Depth range (m): 530 - 841
Temperature range (°C): 6.272 - 9.452
Nitrate (umol/L): 26.630 - 31.016
Salinity (PPS): 34.766 - 35.079
Oxygen (ml/l): 2.847 - 3.141
Phosphate (umol/l): 1.648 - 1.884
Silicate (umol/l): 18.071 - 26.632
Graphical representation
Depth range (m): 530 - 841
Temperature range (°C): 6.272 - 9.452
Nitrate (umol/L): 26.630 - 31.016
Salinity (PPS): 34.766 - 35.079
Oxygen (ml/l): 2.847 - 3.141
Phosphate (umol/l): 1.648 - 1.884
Silicate (umol/l): 18.071 - 26.632
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Depth: 687 - 840m.
From 687 to 840 meters.
Habitat: bathydemersal. A deepwater bottom shark found on the insular slopes off the leeward islands. Poorly known. Not utilized at present.
From 687 to 840 meters.
Habitat: bathydemersal. A deepwater bottom shark found on the insular slopes off the leeward islands. Poorly known. Not utilized at present.
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Life History and Behavior
Life Cycle
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
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Breder, C.M. and D.E. Rosen 1966 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. (Ref. 205)
http://www.fishbase.org/references/FBRefSummary.php?id=205&speccode=1256
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Conservation
Conservation Status
IUCN Red List Assessment
Red List Category
DD
Data Deficient
Red List Criteria
Version
3.1
Year Assessed
2007
Assessor/s
Leandro, L. & Kyne, P.M.
Reviewer/s
Kyne, P.M., Cavanagh, R.D., & Fowler, S.L.
Contributor/s
Justification
A little-known deepwater catshark recorded from 521 to 915 m on the insular slopes of the Caribbean. Several disjunct records from the Straits of Florida, Leeward Islands off Antigua and Anguilla, Netherlands Antilles, Colombia and Venezuela. Reaches 45.5 cm total length (TL) but nothing known of its biology. Not presently of any interest to fisheries. Further research is required to determine its exact distribution, biology and habitat.
History
- 2004Data Deficient
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Trends
Population
Population
Population Trend
There is no information on population size.
Population Trend
Unknown
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Threats
Data deficient (DD)
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IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
http://www.fishbase.org/references/FBRefSummary.php?id=57073
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Major Threats
This species is of no interest to fisheries (Compagno in prep. b).
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Management
Conservation Actions
Conservation Actions
Further research is required to determine the species' exact distribution, biology and habitat.
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Relevance to Humans and Ecosystems
Benefits
Importance
fisheries: of no interest
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Coppola, S.R., W. Fischer, L. Garibaldi, N. Scialabba and K.E. Carpenter 1994 SPECIESDAB: Global species database for fishery purposes. User's manual. FAO Computerized Information Series (Fisheries). No. 9. Rome, FAO. 103 p. (Ref. 171)
http://www.fishbase.org/references/FBRefSummary.php?id=171&speccode=2534
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Wikipedia
Hoary catshark
The hoary catshark, Apristurus canutus, is a cat shark of the family Scyliorhinidae found in the western central Atlantic from the Leeward Islands off Antigua and Anguilla, at depths of between 500 and 1,000 m. Its length is up to 46 cm.
Reproduction is oviparous.
References
- Froese, Rainer, and Daniel Pauly, eds. (2006). "Apristurus canutus" in FishBase. July 2006 version.
- Compagno, Dando, & Fowler, Sharks of the World, Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2
Source:
Wikipedia
Unreviewed
