Overview

Comprehensive Description

Biology

Inhabits lagoon and seaward reefs to a depth of at least 40 m (Ref. 1602). Benthic in coral reefs (Ref. 58302). Venomous spines (Ref. 1602).
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Distribution

Range Description

The Hairy Scorpionfish (Scorpaenodes hirsutus) is widely distributed from the Red Sea and east coast of Africa, north to southern Japan and the Hawaiian Islands, and south to the Great Barrier Reef and the Cook Islands.
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Indo-Pacific: Red Sea and East Africa to the Marquesan and Pitcairn islands, north to Ryukyu and Hawaiian islands, south to Australia (Ref. 33390).
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Red Sea, Indo-West Pacific: East Africa, Natal (South Africa), Mauritius (Mascarenes) and Seychelles east to Marshall Islands and Pitcairn Group, north to Ryukyu Islands, south to Shark Bay (Western Australia), New South Wales (Australia) at 35°03'S, Loya
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Physical Description

Morphology

Dorsal spines (total): 13; Dorsal soft rays (total): 8 - 9; Analspines: 3; Analsoft rays: 5 - 6
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Size

Maximum size: 56 mm SL
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Max. size

5.6 cm SL (male/unsexed; (Ref. 1602))
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Diagnostic Description

Description

Inhabits lagoon and seaward reefs to a depth of at least 40 m. Venomous spines.
  • Anon. (1996). FishBase 96 [CD-ROM]. ICLARM: Los Baños, Philippines. 1 cd-rom pp.
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Covered with short hairlike filaments (Ref. 37816). With vertical scale rows about 30; usually with 4 spines on suborbital ridge, first on lateral face of lachrymal bone; usually 1 additional spine below suborbital ridge at level between second and third spines; presence of interorbital spines; absence of small spines at midline between tympanic spines (Ref. 10482).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
The Hairy Scorpionfish inhabits lagoons and seaward reefs. It is found in the euphotic zone at depths of 8-58 m. This species has venomous spines.

Systems
  • Marine
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Environment

reef-associated; marine; depth range 1 - 40 m (Ref. 10482)
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Depth range based on 65 specimens in 1 taxon.
Water temperature and chemistry ranges based on 37 samples.

Environmental ranges
  Depth range (m): 0.5 - 40.5
  Temperature range (°C): 22.496 - 28.941
  Nitrate (umol/L): 0.040 - 0.895
  Salinity (PPS): 33.845 - 35.911
  Oxygen (ml/l): 4.444 - 5.079
  Phosphate (umol/l): 0.073 - 0.284
  Silicate (umol/l): 0.819 - 4.892

Graphical representation

Depth range (m): 0.5 - 40.5

Temperature range (°C): 22.496 - 28.941

Nitrate (umol/L): 0.040 - 0.895

Salinity (PPS): 33.845 - 35.911

Oxygen (ml/l): 4.444 - 5.079

Phosphate (umol/l): 0.073 - 0.284

Silicate (umol/l): 0.819 - 4.892
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Trophic Strategy

Found in inshore waters (Ref. 75154).
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Scorpaenodes hirsutus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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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
2010

Assessor/s
Motomura, H.

Reviewer/s
Collen, B., Richman, N., Beresford, A., Chenery, A. & Ram, M.

Contributor/s
De Silva, R., Milligan, H., Lutz, M., Batchelor, A., Jopling, B., Kemp, K., Lewis, S., Lintott, P., Sears, J., Wilson, P. & Smith, J. and Livingston, F.

Justification
The Hairy Scorpionfish (Scorpaenodes hirsutus) has been assessed as Least Concern. This is a very widely distributed species. Although it may be undergoing localised declines in some parts of its range as a result of habitat degradation due to coral bleaching and coastal urban expansion, these localized threats are not thought to be significantly impacting the global population size at present. Monitoring of the habitat status of this species should be carried out, to ensure that the localised threats do not become more widespread.
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Population

Population
There is no population information available for the Hairy Scorpionfish.

Population Trend
Unknown
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Threats

Major Threats
The Hairy Scorpionfish may be undergoing localized declines due to habitat degradation. However, given the broad distribution of this species, this is not considered to be a major threat at present.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures in place for the Hairy Scorpionfish. However, its distribution may cover a number of marine protected area designations including the Great Barrier Reef Marine Park. Further research and monitoring of the habitat status of this species should be carried out.
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