Overview

Comprehensive Description

Biology

Adults inhabit lagoon and seaward reefs, also in sheltered clear water reefs in moderate depths (Ref. 48636). Feed on planktonic crustaceans, fish eggs, algae, and small invertebrates. Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
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Distribution

Western Central Pacific: Indonesia, Philippines, Palau, Western Australia, Papua New Guinea, New Britain, Solomon Islands and Vanuatu.
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Indo-Australian Archipelago.
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Physical Description

Morphology

Dorsal spines (total): 13; Dorsal soft rays (total): 13 - 14; Analspines: 2; Analsoft rays: 14 - 15
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Size

Maximum size: 90 mm NG
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Max. size

9.0 cm TL (male/unsexed; (Ref. 9710))
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Diagnostic Description

Plain grey with black on anal fin and yellowish posteriorly over back (Ref. 48636).
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Ecology

Habitat

Environment

reef-associated; non-migratory; marine; depth range 6 - 60 m (Ref. 7247)
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Depth range based on 16 specimens in 1 taxon.
Water temperature and chemistry ranges based on 13 samples.

Environmental ranges
  Depth range (m): 2.135 - 24
  Temperature range (°C): 28.843 - 29.205
  Nitrate (umol/L): 0.053 - 0.119
  Salinity (PPS): 34.131 - 34.582
  Oxygen (ml/l): 4.525 - 4.663
  Phosphate (umol/l): 0.105 - 0.182
  Silicate (umol/l): 1.216 - 1.999

Graphical representation

Depth range (m): 2.135 - 24

Temperature range (°C): 28.843 - 29.205

Nitrate (umol/L): 0.053 - 0.119

Salinity (PPS): 34.131 - 34.582

Oxygen (ml/l): 4.525 - 4.663

Phosphate (umol/l): 0.105 - 0.182

Silicate (umol/l): 1.216 - 1.999
 
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Depth: 6 - 60m.
From 6 to 60 meters.

Habitat: reef-associated. Inhabits lagoon and seaward reefs. Feeds on planktonic crustaceans, fish eggs, algae, and small invertebrates.
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Trophic Strategy

Occurs inshore (Ref. 75154). Inhabits lagoon and seaward reefs. Feeds on planktonic crustaceans, fish eggs, algae, and small invertebrates.
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Life History and Behavior

Life Cycle

Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest
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Disclaimer

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