Overview
Comprehensive Description
Biology
Oviparous (Ref. 50449).
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Nakaya, K. and M. Stehmann 1998 A new species of deep-water catshark, Apristurus aphyodes n. sp., from the Eastern North Atlantic (Chondrichthyes: Carchariniformes: Scyliorhinidae). Arch. Fish. Mar. Res. 46(1):77-90. (Ref. 31787)
http://www.fishbase.org/references/FBRefSummary.php?id=31787&speccode=54373
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FishBase
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Distribution
Northeast Atlantic.
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Nakaya, K. and M. Stehmann 1998 A new species of deep-water catshark, Apristurus aphyodes n. sp., from the Eastern North Atlantic (Chondrichthyes: Carchariniformes: Scyliorhinidae). Arch. Fish. Mar. Res. 46(1):77-90. (Ref. 31787)
http://www.fishbase.org/references/FBRefSummary.php?id=31787&speccode=54373
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FishBase
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Range Description
The species is found in the eastern North Atlantic: Northern Bay of Biscay and Porcupine Seabight to Lousy Bank (49° 31.9’N to 60°49.7’N).
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IUCN
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European waters (ERMS scope)
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van der Land, J.; Costello, M.J.; Zavodnik, D.; Santos, R.S.; Porteiro, F.M.; Bailly, N.; Eschmeyer, W.N.; Froese, R. (2001). Pisces, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 357-374
http://www.marbef.org/data/aphia.php?p=sourcedetails&id=1411
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World Register of Marine Species
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Physical Description
Diagnostic Description
Body slender and cylindrical. Dermal denticles from dorsolateral side of body small and erect.
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Nakaya, K. and M. Stehmann 1998 A new species of deep-water catshark, Apristurus aphyodes n. sp., from the Eastern North Atlantic (Chondrichthyes: Carchariniformes: Scyliorhinidae). Arch. Fish. Mar. Res. 46(1):77-90. (Ref. 31787)
http://www.fishbase.org/references/FBRefSummary.php?id=31787&speccode=54373
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Type Information
Paratype for Apristurus aphyodes Nakaya & Stehmann
Catalog Number: USNM 347837
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1981
Locality: Hebridean Terrace, Scotland, United Kingdom, Atlantic
Depth (m): 1500 to 1500
Vessel: Walther Herwig
Catalog Number: USNM 347837
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1981
Locality: Hebridean Terrace, Scotland, United Kingdom, Atlantic
Depth (m): 1500 to 1500
Vessel: Walther Herwig
- Paratype: Nakaya, K. & Stehmann, M. 1998. Archive of Fishery and Marine Research. 46 (1): 79, figs 1-4.
© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
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Ecology
Habitat
Environment
bathypelagic; marine; depth range 1014 - 1800 m (Ref. 31787)
-
Nakaya, K. and M. Stehmann 1998 A new species of deep-water catshark, Apristurus aphyodes n. sp., from the Eastern North Atlantic (Chondrichthyes: Carchariniformes: Scyliorhinidae). Arch. Fish. Mar. Res. 46(1):77-90. (Ref. 31787)
http://www.fishbase.org/references/FBRefSummary.php?id=31787&speccode=54373
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Habitat and Ecology
Habitat and Ecology
Systems
Known from 30 type specimens taken on the eastern North Atlantic slope at 1,014 to 1,800 m depth. Occurs at bottom temperatures of 3.67 to 9.57°C, and salinities of 35.13 to 34.87 ppm. Males and females are adolescent at 40 to 46 cm TL, and fully mature at 47 to 50 cm TL. Maximum reported size is 54 cm TL. Reproduction is oviparous but egg cases are unknown (Nakaya and Stehmann 1998).
Apristurus species are relatively small, sluggish sharks that live on or near the bottom over upper to mid continental and insular slopes. Diet includes crustaceans (penaeid shrimps, euphausiids), squids and small fishes. Where known, egg cases are usually thick-walled and about 5 to 6.8 cm long and 2.5 to 2.9 cm wide. The anterior end of the case has a long weak fibrous thread on each corner. The posterior end usually has two small processes, each with a long coiled tendril. As in shallow water scyliorhinids the coiled tendrils are probably used to attach the egg cases to hard substrates and/or biogenic structures as they are laid.
Apristurus species are relatively small, sluggish sharks that live on or near the bottom over upper to mid continental and insular slopes. Diet includes crustaceans (penaeid shrimps, euphausiids), squids and small fishes. Where known, egg cases are usually thick-walled and about 5 to 6.8 cm long and 2.5 to 2.9 cm wide. The anterior end of the case has a long weak fibrous thread on each corner. The posterior end usually has two small processes, each with a long coiled tendril. As in shallow water scyliorhinids the coiled tendrils are probably used to attach the egg cases to hard substrates and/or biogenic structures as they are laid.
Systems
- Marine
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Depth range based on 11 specimens in 1 taxon.
Water temperature and chemistry ranges based on 8 samples.
Environmental ranges
Depth range (m): 1019 - 1745
Temperature range (°C): 3.756 - 6.617
Nitrate (umol/L): 15.688 - 18.903
Salinity (PPS): 34.928 - 35.180
Oxygen (ml/l): 5.541 - 6.273
Phosphate (umol/l): 1.072 - 1.224
Silicate (umol/l): 9.210 - 13.127
Graphical representation
Depth range (m): 1019 - 1745
Temperature range (°C): 3.756 - 6.617
Nitrate (umol/L): 15.688 - 18.903
Salinity (PPS): 34.928 - 35.180
Oxygen (ml/l): 5.541 - 6.273
Phosphate (umol/l): 1.072 - 1.224
Silicate (umol/l): 9.210 - 13.127
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Water temperature and chemistry ranges based on 8 samples.
Environmental ranges
Depth range (m): 1019 - 1745
Temperature range (°C): 3.756 - 6.617
Nitrate (umol/L): 15.688 - 18.903
Salinity (PPS): 34.928 - 35.180
Oxygen (ml/l): 5.541 - 6.273
Phosphate (umol/l): 1.072 - 1.224
Silicate (umol/l): 9.210 - 13.127
Graphical representation
Depth range (m): 1019 - 1745
Temperature range (°C): 3.756 - 6.617
Nitrate (umol/L): 15.688 - 18.903
Salinity (PPS): 34.928 - 35.180
Oxygen (ml/l): 5.541 - 6.273
Phosphate (umol/l): 1.072 - 1.224
Silicate (umol/l): 9.210 - 13.127
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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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
2004
Assessor/s
Duffy, C. & Huveneers, C.
Reviewer/s
Kyne, P.M., Cavanagh, R.D. & Fowler, S.L. (Shark Red List Authority)
Contributor/s
Justification
A deepwater catshark known from the Eastern North Atlantic from depths of 1,014 to 1,800 m. Known from only a limited number of specimens. Reaches a maximum of 54 cm total length (TL) but little known of its biology. Insufficient information is available to assess the species beyond Data Deficient.
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IUCN
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Trends
Population
Population
Population Trend
Population size and trends are not known.
Population Trend
Unknown
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IUCN
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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
Other species of deepwater Chondrichthyans are known to be captured as bycatch in deepwater fisheries. As these fisheries expand globally, consideration needs to be given to the fact that this species too may be captured incidentally in deepwater fisheries.
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Management
Conservation Actions
Conservation Actions
No conservation measures are known to be in place for this species.
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IUCN
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Wikipedia
Apristurus aphyodes
Apristurus aphyodes, the white ghost catshark, is a cat shark of the family Scyliorhinidae found in deep water in the northeast Atlantic between latitudes 57°N and 58°N.
See also
References
- Froese, Rainer, and Daniel Pauly, eds. (2006). "Apristurus aphyodes" in FishBase. July 2006 version.
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