Table of Contents
Overview
Comprehensive Description
Biology
Found on the continental slopes. Oviparous, with one egg per oviduct laid at a time. Sexual dimorphism in adults unusually well-developed.
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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: Cuba, northern Gulf of Mexico, and Panama.
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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: Known from Dominican Republic, Cuba, the northern Gulf of Mexico (Florida to Mississippi, USA), Mexico, Honduras, Panama, Colombia and Venezuela (Compagno et al. 2005).
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Cuba, northern Gulf of Mexico, and Panama
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North-West Atlantic Ocean species (NWARMS)
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=2901
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Gulf of Mexico, North West Atlantic
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North-West Atlantic Ocean species (NWARMS)
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=2901
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Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.
http://www.marinespecies.org/porifera/porifera.php?p=sourcedetails&id=145245
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World Register of Marine Species
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Physical Description
Size
Max. size
46.0 cm TL (male/unsexed; (Ref. 244)); 41 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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Diagnostic Description
Relatively slender, moderately long, narrow snout and relatively narrow, low caudal fin. Color uniform dark brown (Ref. 37039). First to third gill openings long as the distance between the nostrils (Ref. 6032).
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Bigelow, H.B. and W.C. Schroeder 1948 Sharks. p. 59-546. In J. Tee-Van, C.M. Breder, S.F. Hildebrand, A.E. Parr and W.C. Schroeder (eds.) Fishes of the Western North Atlantic. Part one. Lancelets, cyclostomes, sharks. Sears Foundation for Marine Research, Yale University, New Haven. 576 p. (Ref. 6032)
http://www.fishbase.org/references/FBRefSummary.php?id=6032&speccode=891
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Ecology
Habitat
Environment
bathydemersal; marine; depth range 700 - 1500 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
Known from the continental slope at depths of 732 to 1,461 m (Compagno et al. 2005). Maximum size 46 cm total length (TL); adult males 43 to 46 cm TL, adult females 40 to 41 cm TL. Little is known of its biology. Oviparous, with a single egg per oviduct laid at a time (Compagno in prep. b).
Systems
- Marine
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benthic
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North-West Atlantic Ocean species (NWARMS)
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=2901
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World Register of Marine Species
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Found at depths of 860 - 1098m.
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North-West Atlantic Ocean species (NWARMS)
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=2901
© WoRMS for SMEBD
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World Register of Marine Species
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Depth range based on 10 specimens in 1 taxon.
Water temperature and chemistry ranges based on 4 samples.
Environmental ranges
Depth range (m): 732 - 1006
Temperature range (°C): 4.756 - 5.441
Nitrate (umol/L): 24.827 - 27.969
Salinity (PPS): 34.840 - 34.953
Oxygen (ml/l): 3.755 - 4.229
Phosphate (umol/l): 1.601 - 1.957
Silicate (umol/l): 22.517 - 28.695
Graphical representation
Depth range (m): 732 - 1006
Temperature range (°C): 4.756 - 5.441
Nitrate (umol/L): 24.827 - 27.969
Salinity (PPS): 34.840 - 34.953
Oxygen (ml/l): 3.755 - 4.229
Phosphate (umol/l): 1.601 - 1.957
Silicate (umol/l): 22.517 - 28.695
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Water temperature and chemistry ranges based on 4 samples.
Environmental ranges
Depth range (m): 732 - 1006
Temperature range (°C): 4.756 - 5.441
Nitrate (umol/L): 24.827 - 27.969
Salinity (PPS): 34.840 - 34.953
Oxygen (ml/l): 3.755 - 4.229
Phosphate (umol/l): 1.601 - 1.957
Silicate (umol/l): 22.517 - 28.695
Graphical representation
Depth range (m): 732 - 1006
Temperature range (°C): 4.756 - 5.441
Nitrate (umol/L): 24.827 - 27.969
Salinity (PPS): 34.840 - 34.953
Oxygen (ml/l): 3.755 - 4.229
Phosphate (umol/l): 1.601 - 1.957
Silicate (umol/l): 22.517 - 28.695
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Depth: 860 - 1098m.
From 860 to 1098 meters.
Habitat: bathydemersal. Found on the continental slopes. Oviparous, with one egg per oviduct laid at a time. Sexual dimorphism in adults unusually well-developed. Not utilized at present.
From 860 to 1098 meters.
Habitat: bathydemersal. Found on the continental slopes. Oviparous, with one egg per oviduct laid at a time. Sexual dimorphism in adults unusually well-developed. 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). Sexual dimorphism is evident in dentition of males (Ref. 49562). Males have longer teeth with fewer cusps (Ref. 51093) to make 'courtship biting' more effective (Ref. 49562).
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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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Molecular Biology and Genetics
Molecular Biology
Statistics of barcoding coverage: Apristurus riveri
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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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
Cavanagh, R.D. & Fowler, S.L. (Shark Red List Authority)
Contributor/s
Justification
An uncommon and poorly known deepwater catshark recorded from 732 to 1,461 m in the Western Central Atlantic where it is known from the northern Gulf of Mexico, Cuba, Dominican Republic, Mexico, Honduras, Panama, Colombia and Venezuela. Reaches 46 cm total length (TL) but nothing known of its biology. Of no interest to fisheries at present. Insufficient information available to assess the species beyond Data Deficient at this time.
History
- 2004Data Deficient
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Trends
Population
Population
Population Trend
Reported as uncommon (Compagno in prep. b).
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
Of no interest to fisheries (Compagno, in prep. b).
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Management
Conservation Actions
Conservation Actions
Further research is required on this poorly known species in order to better document its distribution, biology and bycatch levels.
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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
Broadgill catshark
The broadgill catshark, Apristurus riveri, is a cat shark of the family Scyliorhinidae found in the Gulf of Mexico and the Caribbean Sea, between latitudes 30° N and 9° N, on the continental slopes at depths of between 700 and 1,500 m. Its length is up to 46 cm.
The broadgill catshark is oviparous.
See also
References
- Froese, Rainer, and Daniel Pauly, eds. (2006). "Apristurus riveri" in FishBase. July 2006 version.
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