Overview
Comprehensive Description
Biology
Sexual maturity attained between 40 and 50 cm TL (Ref. 36058). Oviparous (Ref. 50449).
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Nakaya, K. and B. Séret 1999 A new species of deepwater catshark, Apristurus albisoma n.sp. from New Caledonia (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Cybium 23(3):297-310. (Ref. 36058)
http://www.fishbase.org/references/FBRefSummary.php?id=36058&speccode=58230
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FishBase
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Distribution
Western Pacific: southern waters off New Caledonia, slopes of the seamounts of the Norfolk and Lord Howe ridges.
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Nakaya, K. and B. Séret 1999 A new species of deepwater catshark, Apristurus albisoma n.sp. from New Caledonia (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Cybium 23(3):297-310. (Ref. 36058)
http://www.fishbase.org/references/FBRefSummary.php?id=36058&speccode=58230
© FishBase
Source:
FishBase
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Range Description
Apristurus albisoma has a limited geographic range. It is endemic to the Western South Pacific, occurring on the island slopes of New Caledonia and adjacent sea mounts (Norfolk and Lord Howe ridges), at depths of 935 to 1,564 m.
© International Union for Conservation of Nature and Natural Resources
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IUCN
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Physical Description
Size
Max. size
59.6 cm TL (male/unsexed; (Ref. 36058)); 56.6 cm TL (female)
-
Nakaya, K. and B. Séret 1999 A new species of deepwater catshark, Apristurus albisoma n.sp. from New Caledonia (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Cybium 23(3):297-310. (Ref. 36058)
http://www.fishbase.org/references/FBRefSummary.php?id=36058&speccode=58230
© FishBase
Source:
FishBase
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Diagnostic Description
Body whitish. Eyes small; interobital region 2.7 - 3.6 times eye diameter. Supraorbital sensory canal continuous. Second dorsal fin axil before anal fin axil. Upper labial furrows equal or shorter than lower furrows. Tricuspid dermal denticles overlapping. Spiral valves 6-10.
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Nakaya, K. and B. Séret 1999 A new species of deepwater catshark, Apristurus albisoma n.sp. from New Caledonia (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Cybium 23(3):297-310. (Ref. 36058)
http://www.fishbase.org/references/FBRefSummary.php?id=36058&speccode=58230
© FishBase
Source:
FishBase
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Ecology
Habitat
Environment
bathydemersal; marine; depth range 935 - 1564 m (Ref. 36058)
-
Nakaya, K. and B. Séret 1999 A new species of deepwater catshark, Apristurus albisoma n.sp. from New Caledonia (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Cybium 23(3):297-310. (Ref. 36058)
http://www.fishbase.org/references/FBRefSummary.php?id=36058&speccode=58230
© FishBase
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FishBase
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Habitat and Ecology
Habitat and Ecology
Systems
A deepwater catshark (occurs in insular areas and seamount slopes 935 to 1,564 m) that matures at 40 to 50 cm length, reaches a maximum of 60 cm and is likely to be very susceptible to depletion to bycatch because of low intrinsic rates of population increase. The species eats penaeid shrimp and squid. It has a stocky, soft body and fragile skin, and is probably a poor swimmer with limited ability to recolonise depleted areas.
Systems
- Marine
© International Union for Conservation of Nature and Natural Resources
Source:
IUCN
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Depth range based on 29 specimens in 1 taxon.
Water temperature and chemistry ranges based on 29 samples.
Environmental ranges
Depth range (m): 974 - 1440
Temperature range (°C): 3.229 - 4.745
Nitrate (umol/L): 29.953 - 35.373
Salinity (PPS): 34.453 - 34.550
Oxygen (ml/l): 3.574 - 4.205
Phosphate (umol/l): 2.161 - 2.402
Silicate (umol/l): 42.823 - 83.287
Graphical representation
Depth range (m): 974 - 1440
Temperature range (°C): 3.229 - 4.745
Nitrate (umol/L): 29.953 - 35.373
Salinity (PPS): 34.453 - 34.550
Oxygen (ml/l): 3.574 - 4.205
Phosphate (umol/l): 2.161 - 2.402
Silicate (umol/l): 42.823 - 83.287
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Water temperature and chemistry ranges based on 29 samples.
Environmental ranges
Depth range (m): 974 - 1440
Temperature range (°C): 3.229 - 4.745
Nitrate (umol/L): 29.953 - 35.373
Salinity (PPS): 34.453 - 34.550
Oxygen (ml/l): 3.574 - 4.205
Phosphate (umol/l): 2.161 - 2.402
Silicate (umol/l): 42.823 - 83.287
Graphical representation
Depth range (m): 974 - 1440
Temperature range (°C): 3.229 - 4.745
Nitrate (umol/L): 29.953 - 35.373
Salinity (PPS): 34.453 - 34.550
Oxygen (ml/l): 3.574 - 4.205
Phosphate (umol/l): 2.161 - 2.402
Silicate (umol/l): 42.823 - 83.287
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Trusted
Trophic Strategy
Some stomachs with penaeid shrimps (Gennadas) and one with a squid beak (Ref. 36058).
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Nakaya, K. and B. Séret 1999 A new species of deepwater catshark, Apristurus albisoma n.sp. from New Caledonia (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Cybium 23(3):297-310. (Ref. 36058)
http://www.fishbase.org/references/FBRefSummary.php?id=36058&speccode=58230
© FishBase
Source:
FishBase
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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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FishBase
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Conservation
Conservation Status
IUCN Red List Assessment
Red List Category
NT
Near Threatened
Red List Criteria
Version
3.1
Year Assessed
2003
Assessor/s
Fowler, S.L. (SSG Australia & Oceania Regional Workshop, March 2003)
Reviewer/s
Shark Specialist Group Australia & Oceania Regional Group, Fowler, S. & Musick, J.A. (Shark Red List Authority)
Justification
The area of occupancy of this small benthic endemic shark is presumed very limited (less than 2,000 km²), being restricted to a narrow depth band on insular and seamount slopes. It has only been reported from a few locations. There is concern that this species may be taken as un-utilised bycatch by deepwater trawl fisheries and that, like other deepwater species, it may not be sufficiently fecund to withstand exploitation pressure in these fisheries. It fails to meet the criteria for Vulnerable (B2), however, because there is insufficient evidence of fishing activity at levels that would lead to a decline in range, habitat quality or number of individuals.
© International Union for Conservation of Nature and Natural Resources
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IUCN
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Trends
Population
Population
Population Trend
There is no information on population size.
Population Trend
Unknown
© International Union for Conservation of Nature and Natural Resources
Source:
IUCN
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Threats
Near Threatened (NT)
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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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FishBase
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Major Threats
Possibly a bycatch of deepwater fisheries, but of no value and would be discarded.
© International Union for Conservation of Nature and Natural Resources
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IUCN
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Management
Conservation Actions
Conservation Actions
No conservation measures in place.
© International Union for Conservation of Nature and Natural Resources
Source:
IUCN
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Wikipedia
Apristurus albisoma
Apristurus albisoma, the white-bodied catshark, is a cat shark of the family Scyliorhinidae.
See also
References
- Froese, Rainer, and Daniel Pauly, eds. (2006). "Apristurus albisoma" in FishBase. July 2006 version.
Source:
Wikipedia
Unreviewed
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