Overview

Comprehensive Description

Biology

A little-known inshore bottom shark of singular and unique appearance (Ref. 247). Probably found on coral reefs (Ref. 247). Oviparous (Ref. 50449).
  • 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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome: FAO. (Ref. 247)
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Distribution

Range Description

Hemiscyllium strahani is restricted to a small region off the northern and southern coasts along the eastern extent of New Guinea (extent of occurrence less than 20,000 km²).
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Western Pacific: Papua New Guinea. Also reported from Indonesia (questionable occurrence).
  • Allen, G.R. and M.V. Erdmann 2012 Reef fishes of the East Indies. Perth, Australia: Universitiy of Hawai'i Press, Volumes I-III. Tropical Reef Research. (Ref. 90102)
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Eastern Papua New Guinea.
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Analspines: 0; Analsoft rays: 0
  • Compagno, L.J.V. and V.H. Niem 1998 Hemiscylliidae. Longtail carpetsharks. p. 1249-1259. In K.E. Carpenter and V.H. Niem (eds.) FAO identification guide for fishery purposes. The Living Marine Resources of the Western Central Pacific. FAO, Rome. (Ref. 13575)
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Size

Maximum size: 750 mm TL
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Max. size

75.0 cm TL (male/unsexed; (Ref. 247))
  • 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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome: FAO. (Ref. 247)
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Diagnostic Description

Caudal fin with a pronounced subterminal notch but without a ventral lobe (Ref. 13575). Head and snout with an abrupt black hood; body with conspicuous large white spots (Ref. 13575).
  • Compagno, L.J.V. and V.H. Niem 1998 Hemiscylliidae. Longtail carpetsharks. p. 1249-1259. In K.E. Carpenter and V.H. Niem (eds.) FAO identification guide for fishery purposes. The Living Marine Resources of the Western Central Pacific. FAO, Rome. (Ref. 13575)
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species resides in tropical waters on coral reefs typically observed in 3 to 18 m depth. H. strahani reaches a maximum size of 80 cm TL. This species is nocturnal and individuals are commonly found in crevices and under coral heads during the day. Known to prefer areas of abundant high coral. Males mature at approximately 60 cm TL. The biology of this species is almost entirely unknown.

Systems
  • Marine
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Environment

reef-associated; marine; depth range 3 - 18 m (Ref. 43278), usually 3 - 13 m (Ref. 43278)
  • Compagno, L.J.V. 2001 Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Vol. 2. Bullhead, mackerel and carpet sharks (Heterodontiformes, Lamniformes and Orectolobiformes). FAO Spec. Cat. Fish. Purp. 1(2):269p. Rome: FAO. (Ref. 43278)
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Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 18.3 - 18.3
 
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).
  • 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)
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
VU
Vulnerable

Red List Criteria
B1ab(iii)

Version
3.1

Year Assessed
2003
  • Needs updating

Assessor/s
Heupel, M.R. & Kyne, P.M. (SSG Australia & Oceania Regional Workshop, March 2003)

Reviewer/s
Fowler, S. & Cavanagh, R.D. (Shark Red List Authority)

Contributor/s

Justification
A largely unknown species endemic to the northern and southern coast along the eastern extent of New Guinea. Its range is limited and somewhat fragmented with a high degree of habitat destruction (high pollutant loads and dynamite fishing practices). This species may also be subject to an unknown level of exploitation by the aquarium industry.
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Population

Population
Little is known about the population size in this range and no scientific data are currently available.

Population Trend
Unknown
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Threats

Major Threats
It is unknown if this species is utilized by the aquarium industry. However, this is a very attractive and hardy species that may be sought after for public and private aquaria. This small population is very susceptible to habitat destruction via high pollutant levels and dynamite fishing practices.
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Vulnerable (VU) (B1ab(iii))
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Management

Conservation Actions

Conservation Actions
None. Based on the restricted distribution of this species and high risk of habitat destruction this species requires scientific examination to assess its conservation status.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: minor commercial; price category: unknown; price reliability:
  • Compagno, L.J.V. and V.H. Niem 1998 Hemiscylliidae. Longtail carpetsharks. p. 1249-1259. In K.E. Carpenter and V.H. Niem (eds.) FAO identification guide for fishery purposes. The Living Marine Resources of the Western Central Pacific. FAO, Rome. (Ref. 13575)
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Wikipedia

Hooded carpetshark

The hooded carpetshark, Hemiscyllium strahani, is a bamboo shark in the family Hemiscylliidae found around Irian Jaya and Papua New Guinea, between latitudes 5° S and 10° S, and longitude 144° E and 153° E. Its length is up to 75 cm.

Reproduction is oviparous.

See also[edit]

References[edit]

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