Overview

Brief Summary

The Soft Coral Goby (Pleurosicya boldinghi) is a small fish (it reaches a length of around 3.5 cm) that is known from Japan, New Guinea, Indonesia, and the Great Barrier Reef in Australia from depths of around 20 to 127 m. This species is commensal with soft corals of the genus Dendronephthya (commensal organisms benefit from their association with a host, but there is no associated cost to the host, as there is in the case of parasitism). Randall et al. (1996) provide a technical morphological description of P. boldinghi. (Randall et al. 1996)

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Comprehensive Description

Biology

Lives on Dendronephthya soft corals, usually at depth of 20 meters or more in areas subject to strong currents. Large corals may play host to several individuals (Ref. 48637). Also found with Sarcophyton soft corals and sea pens in 5-82 m (Ref 90102).
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Distribution

Indo-West Pacific: Aliwal Shoal, South Africa (Ref. 11228) to Indonesia and Papua New Guinea (Ref. 6771).
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Indo-West Pacific.
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Physical Description

Morphology

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 7; Analspines: 1; Analsoft rays: 6 - 8
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Size

Maximum size: 27 mm SL
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Max. size

4.5 cm SL (male/unsexed; (Ref. 48637))
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Diagnostic Description

Characterized by semi-translucent body and fins, blend s well with soft coral or seapen; nape usually scaled to behind eyes; longitudinal scale series 22-25; wide gill opening, reaching forward to below posterior edge of eye; relatively deep bodied, depth of body at anus 3.8-5.8 in SL (Ref 90102).
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Ecology

Habitat

Environment

reef-associated; marine; depth range 5 - 82 m (Ref. 90102)
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Depth range based on 6 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 8.4 - 57
  Temperature range (°C): 25.235 - 28.897
  Nitrate (umol/L): 0.068 - 2.844
  Salinity (PPS): 34.171 - 35.267
  Oxygen (ml/l): 4.133 - 4.549
  Phosphate (umol/l): 0.108 - 0.431
  Silicate (umol/l): 1.596 - 4.853

Graphical representation

Depth range (m): 8.4 - 57

Temperature range (°C): 25.235 - 28.897

Nitrate (umol/L): 0.068 - 2.844

Salinity (PPS): 34.171 - 35.267

Oxygen (ml/l): 4.133 - 4.549

Phosphate (umol/l): 0.108 - 0.431

Silicate (umol/l): 1.596 - 4.853
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Conservation

Threats

Not Evaluated
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