Overview

Comprehensive Description

Biology

Found on shallow coral reefs of the continental shelf (Ref. 247). Probably mainly feeding on benthic invertebrates (Ref. 6871). Oviparous (Ref. 50449).
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Distribution

Range Description

Hemiscyllium trispeculare is restricted to the northern coast of Australia from northern Queensland (Rockhampton) to northern Western Australia (Ningaloo).
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Northern Australia.
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Western Pacific: northern Australia (including Western Australia) (Ref. 6871). Possibly in the Mollucas (Indonesia).
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Analspines: 0; Analsoft rays: 0
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Size

Maximum size: 650 mm TL
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Max. size

79.0 cm TL (male/unsexed; (Ref. 43278))
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Diagnostic Description

Body covered with numerous, densely clustered dark, small and large spots that form a reticular network of light ground color between them; dark crossbands strong on ventral surface of tail (Ref. 13575).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species resides in shallow tropical waters along the coast and on coral reefs. H. trispeculare reaches a maximum size of 79 cm total length (TL) and is oviparous. Individuals are commonly observed under coral structures. Adults and juveniles probably feed on benthic invertebrates and small fishes similar to H. ocellatum. Little else is known about the biology of this species.

Systems
  • Marine
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Environment

reef-associated; marine; depth range 0 - 50 m (Ref. 54542)
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Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 6 - 6
 
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Trophic Strategy

Found on shallow coral reefs of the contintental shelf. Probably mainly feeding on benthic invertebrates.
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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
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2003

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

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

Contributor/s

Justification
This little-known species is possibly an Australian endemic (it may also occur in Indonesia). It is not targeted by fisheries and is distributed over a reasonably large coastal range. These small sharks are unlikely to be significantly impacted as a bycatch species and at least a portion of the species? range is protected from fishing. This species may be utilized by the aquarium industry, but the extent of exploitation is unknown.
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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
This species may be taken as bycatch by commercial vessels and may be used in the aquarium trade.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
None. However, this species is protected in part of its range via closed fishing areas and protected reserves in the Great Barrier Reef Marine Park.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: minor commercial; price category: unknown; price reliability:
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Wikipedia

Speckled carpetshark

The speckled carpetshark, Hemiscyllium trispeculare, is a bamboo shark in the family Hemiscylliidae found around north and west Australia between latitudes 8° S and 22° S, and longitude 114° E and 152° E. Its length is up to 79 cm.

Reproduction is oviparous.

See also[edit]

References[edit]

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