Overview
Comprehensive Description
Biology
Found in protected coastal and seaward reef slopes in oceanic locations, to 15 m depth; secretive and rarely seen during daytime (Ref. 48635). Feeds on ostracods, amphipods, shrimps, and polychaetes (Ref. 37816).
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Myers, R.F. 1999 Micronesian reef fishes. A comprehensive guide to the coral reef fishes of Micronesia. Coral Graphics, Barrigada, Guam. 216 p. (Ref. 34765)
http://www.fishbase.org/references/FBRefSummary.php?id=34765&speccode=6024
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Distribution
Indo-Pacific: Red Sea south to Inhaca Island (Ref. 4329) and east to the Line and Tuamoto islands, north to the Ryukyu Islands, south to the southern Great Barrier Reef and Rapa.
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Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p.
http://www.fishbase.org/references/FBRefSummary.php?id=1602
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Physical Description
Morphology
Dorsal spines (total): 8; Dorsal soft rays (total): 9; Analspines: 2; Analsoft rays: 8
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Randall, J.E., G.R. Allen and R.C. Steene 1990 Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
http://www.fishbase.org/references/FBRefSummary.php?id=2334&speccode=13770
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Size
Max. size
10.0 cm SL (male/unsexed; (Ref. 48635))
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Kuiter, R.H. and T. Tonozuka 2001 Pictorial guide to Indonesian reef fishes. Part 1. Eels- Snappers, Muraenidae - Lutjanidae. Zoonetics, Australia. 302 p. (Ref. 48635)
http://www.fishbase.org/references/FBRefSummary.php?id=48635&speccode=11113
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Diagnostic Description
Body is coppery or silvery with a dark saddle on the upper half of the caudal peduncle; wedge shaped bar below eye (Ref. 2334, 48635).
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Randall, J.E., G.R. Allen and R.C. Steene 1990 Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
http://www.fishbase.org/references/FBRefSummary.php?id=2334&speccode=13770
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Ecology
Habitat
Depth range based on 46 specimens in 1 taxon.
Water temperature and chemistry ranges based on 34 samples.
Environmental ranges
Depth range (m): 0.6 - 35
Temperature range (°C): 25.712 - 29.266
Nitrate (umol/L): 0.019 - 0.895
Salinity (PPS): 32.185 - 35.265
Oxygen (ml/l): 4.202 - 4.717
Phosphate (umol/l): 0.070 - 0.337
Silicate (umol/l): 0.897 - 5.552
Graphical representation
Depth range (m): 0.6 - 35
Temperature range (°C): 25.712 - 29.266
Nitrate (umol/L): 0.019 - 0.895
Salinity (PPS): 32.185 - 35.265
Oxygen (ml/l): 4.202 - 4.717
Phosphate (umol/l): 0.070 - 0.337
Silicate (umol/l): 0.897 - 5.552
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Water temperature and chemistry ranges based on 34 samples.
Environmental ranges
Depth range (m): 0.6 - 35
Temperature range (°C): 25.712 - 29.266
Nitrate (umol/L): 0.019 - 0.895
Salinity (PPS): 32.185 - 35.265
Oxygen (ml/l): 4.202 - 4.717
Phosphate (umol/l): 0.070 - 0.337
Silicate (umol/l): 0.897 - 5.552
Graphical representation
Depth range (m): 0.6 - 35
Temperature range (°C): 25.712 - 29.266
Nitrate (umol/L): 0.019 - 0.895
Salinity (PPS): 32.185 - 35.265
Oxygen (ml/l): 4.202 - 4.717
Phosphate (umol/l): 0.070 - 0.337
Silicate (umol/l): 0.897 - 5.552
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Environment
reef-associated; marine; depth range 3 - 25 m (Ref. 34765)
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Myers, R.F. 1999 Micronesian reef fishes. A comprehensive guide to the coral reef fishes of Micronesia. Coral Graphics, Barrigada, Guam. 216 p. (Ref. 34765)
http://www.fishbase.org/references/FBRefSummary.php?id=34765&speccode=6024
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Trophic Strategy
Nocturnal species (Ref. 75154) which inhabits coral reefs in lagoons and floodplains (Ref. 9137). Feeds on planktonic and benthic organisms (Ref. 26990). Exhibits the black gut phenomenon. In nocturnal predators, it appears to serve to conceal bioluminiscent prey in the stomach cavity (Ref. 46685).
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Hobson, E.S. and J.R. Chess 1978 Trophic relationships among fishes and plankton in the lagoon at Enewetak Atoll, Marshall Islands. Fish. Bull. 76(1):133-153. (Ref. 26990)
http://www.fishbase.org/references/FBRefSummary.php?id=26990&speccode=27483
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Life History and Behavior
Life Cycle
Mouthbrooders (Ref. 240). Distinct pairing during courtship and spawning (Ref. 205).
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Thresher, R.E. 1984 Reproduction in reef fishes. T.F.H. Publications, Inc. Ltd., Neptune City, New Jersey. 399 p. (Ref. 240)
http://www.fishbase.org/references/FBRefSummary.php?id=240&speccode=1263
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Molecular Biology and Genetics
Molecular Biology
Genomic DNA is available from 2 specimens with morphological vouchers housed at National Institute of Water and Atmospheric Research, Wellington
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Statistics of barcoding coverage: Apogon savayensis
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 4
Species: 7
Species With Barcodes: 1
Public Records: 4
Species: 7
Species With Barcodes: 1
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Statistics of barcoding coverage: Nectamia savayensis
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Species: 7
Species With Barcodes: 1
Public Records: 0
Species: 7
Species With Barcodes: 1
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Conservation
Threats
Not Evaluated
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IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
http://www.fishbase.org/references/FBRefSummary.php?id=57073
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