Overview

Comprehensive Description

Biology

Found in inshore, usually silty habitat on sand or mud near shallow reefs and seagrass beds (Ref. 48636).
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Distribution

Range Description

This species is found in the Indo-West Pacific from Sri Lanka to the Indo-Malayan region. The record from Christmas needs to be verified.
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Indo-West Pacific: Sri Lanka to the Indo-Malayan region. A Christmas Island record is doubtful.
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Physical Description

Size

Max. size

12.0 cm TL (male/unsexed; (Ref. 48636))
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Diagnostic Description

Mid-lateral stripe is thin when young, but widens to about eye-diameter width when adult, with series of pearly blue spots running along centre. Black spot between 6th and 7th dorsal fin spines in initial phase, usually faded in large males (Ref. 48636).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is found in inshore, usually silty habitat on sand or mud near shallow reefs and seagrass beds (Kuiter and Tonozuka 2001). It grows to about 12.0 cm TL (male/unsexed) (Kuiter and Tonozuka 2001).

Systems
  • Marine
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Depth range based on 8 specimens in 1 taxon.
Water temperature and chemistry ranges based on 7 samples.

Environmental ranges
  Depth range (m): 1.2 - 18
  Temperature range (°C): 23.822 - 28.885
  Nitrate (umol/L): 0.075 - 0.553
  Salinity (PPS): 32.183 - 32.495
  Oxygen (ml/l): 4.149 - 4.847
  Phosphate (umol/l): 0.246 - 0.441
  Silicate (umol/l): 4.465 - 15.721

Graphical representation

Depth range (m): 1.2 - 18

Temperature range (°C): 23.822 - 28.885

Nitrate (umol/L): 0.075 - 0.553

Salinity (PPS): 32.183 - 32.495

Oxygen (ml/l): 4.149 - 4.847

Phosphate (umol/l): 0.246 - 0.441

Silicate (umol/l): 4.465 - 15.721
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Environment

reef-associated; marine
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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
Cabanban, A., Pollard, D. & Choat, J.H.

Reviewer/s
Sadovy, Y. & Carpenter, K.E.

Contributor/s

Justification
This species is widespread and relatively common throughout its range. There are no known major threats. It is listed as Least Concern.
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Population

Population
There is no population information for this species. It is probably common.

Population Trend
Unknown
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Threats

Threats

Major Threats
There are no specific major threats to this species. General threats in the area of distribution are coastal development, sedimentation, destructive fishing, overfishing, and pollution of coral reefs (Burke et al. 2001, Hodgson 1999).
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no specific conservation measures in place for this species. Its distribution overlaps several marine protected areas within its range.
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