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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Distribution

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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Western Central Atlantic: leeward islands off Antigua and Anguilla.
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Western Atlantic.
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Physical Description

Size

Maximum size: 430 mm TL
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Max. size

43.0 cm TL (male/unsexed; (Ref. 244)); 45 cm TL (female)
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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
  • Paratype: Springer, S. & Heemstra. 1979. NOAA Technical Report, NMFS Circular. No. 422: 16, figs. 10-13; table1.
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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
  • Holotype: Springer, S. & Heemstra. 1979. NOAA Technical Report, NMFS Circular. No. 422: 16, figs. 10-13; table1.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
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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Environment

bathydemersal; marine; depth range 500 - 1000 m (Ref. 55584)
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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.

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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.
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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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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
  • 2004
    Data Deficient
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Population

Population
There is no information on population size.

Population Trend
Unknown
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Threats

Major Threats
This species is of no interest to fisheries (Compagno in prep. b).
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Data deficient (DD)
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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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Wikipedia

Hoary catshark

The hoary catshark, Apristurus canutus, is a catshark of the family Scyliorhinidae found in the western central Atlantic from the Leeward Islands off Antigua and Anguilla, at depths between 521 and 915 m. Its length is up to 45.5 cm.

Reproduction is oviparous.

References[edit]

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