Overview
Comprehensive Description
Biology
High-oceanic (Ref. 4479). Mesopelagic (Ref. 58302). Found between 175-550 m during the day and near the surface to about 225 m at night (Ref. 4066, 58302). Large males partially or non-migratory (Ref. 4066). Exhibits dwarfing in minimum region off Brazil with a maximum length of about 3.6 cm SL and sexual maturity from about 2.7 cm SL (Ref. 4479).
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Hulley, P.A. 1990 Myctophidae. p. 398-467. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI; Paris; and UNESCO, Paris. Vol. 1. (Ref. 4479)
http://www.fishbase.org/references/FBRefSummary.php?id=4479&speccode=21
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Distribution
Azores Exclusive Economic Zone, European waters (ERMS scope), Gulf of Maine, Gulf of Mexico, Madagascar, Mozambique, New Zealand Exclusive Economic Zone, North West Atlantic, Portuguese Exclusive Economic Zone, South Africa (country), Spanish Exclusive Economic Zone
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North-West Atlantic Ocean species (NWARMS)
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=2901
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Anon. (1996). FishBase 96 [CD-ROM]. ICLARM: Los Baños, Philippines. 1 cd-rom pp.
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=5909
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Anon. (2000). FishBase 2000 [CD-ROM]. ICLARM: Los Baños, Laguna, Philippines. 4 cd-roms pp.
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=6542
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Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp
http://www.marinespecies.org/porifera/porifera.php?p=sourcedetails&id=145244
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Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.
http://www.marinespecies.org/porifera/porifera.php?p=sourcedetails&id=145245
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van der Land, J.; Costello, M.J.; Zavodnik, D.; Santos, R.S.; Porteiro, F.M.; Bailly, N.; Eschmeyer, W.N.; Froese, R. (2001). Pisces, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 357-374
http://www.marbef.org/data/aphia.php?p=sourcedetails&id=1411
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Borges, P.A.V., Costa, A., Cunha, R., Gabriel, R., Gonçalves, V., Martins, A.F., Melo, I., Parente, M., Raposeiro, P., Rodrigues, P., Santos, R.S., Silva, L., Vieira, P. & Vieira, V. (Eds.) (2010). A list of the terrestrial and marine biota from the Azores. Princípia, Oeiras, 432 pp.
http://www.marinespecies.org/ascidiacea/aphia.php?p=sourcedetails&id=149079
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Ramos, M. (ed.). 2010. IBERFAUNA. The Iberian Fauna Databank
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=149024
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Circumglobal: In tropical to subtropical waters. Eastern Atlantic: Morocco to Angola. Western Atlantic: USA to Uruguay. Western Pacific: warmer waters and in Kuroshio (Japan Current). Indian Ocean: Mozambique Channel and Agulhas Current. Elsewhere, in the eastern Pacific. South China Sea (Ref.74511).
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Hulley, P.A. 1990 Myctophidae. p. 398-467. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI; Paris; and UNESCO, Paris. Vol. 1. (Ref. 4479)
http://www.fishbase.org/references/FBRefSummary.php?id=4479&speccode=21
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Sable Island Bank to Uruguay
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North-West Atlantic Ocean species (NWARMS)
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=2901
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Circumglobal in tropical trough temperate seas, including Hawaiian Islands, but not in Eastern Pacific.
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Physical Description
Morphology
Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 14; Analspines: 0; Analsoft rays: 12 - 14
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Hulley, P.A. 1986 Myctophidae. p. 282-321. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4066)
http://www.fishbase.org/references/FBRefSummary.php?id=4066&speccode=10238
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Size
Max. size
6.0 cm SL (male/unsexed; (Ref. 4479))
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Hulley, P.A. 1990 Myctophidae. p. 398-467. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI; Paris; and UNESCO, Paris. Vol. 1. (Ref. 4479)
http://www.fishbase.org/references/FBRefSummary.php?id=4479&speccode=21
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Diagnostic Description
Description
Oceanic and mesopelagic. Occurs near the surface to about 225 m at night and in deeper waters during the day. Large males partially or non-migratory (Ref. 4066). Exhibits dwarfing in minimum region off Brazil with maximum SL about 36 mm and sexual maturity from about 27 mm (Ref. 4479). Spawns mainly in summer in Hawaii (Ref. 4775).
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Anon. (1996). FishBase 96 [CD-ROM]. ICLARM: Los Baños, Philippines. 1 cd-rom pp.
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=5909
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Ecology
Habitat
Environment
bathypelagic; oceanodromous (Ref. 51243); marine; depth range 200 - 600 m (Ref. 58018)
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Bogutskaya, N.G. 2007 Preliminary assignment of coordinates to type localities in the Catalog of Fishes. Unpublished dbf file. (Ref. 58018)
http://www.fishbase.org/references/FBRefSummary.php?id=58018&speccode=6010
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Riede, K. 2004 Global register of migratory species - from global to regional scales. Final Report of the R&D-Projekt 808 05 081. Federal Agency for Nature Conservation, Bonn, Germany. 329 p. (Ref. 51243)
http://www.fishbase.org/references/FBRefSummary.php?id=51243&speccode=4683
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nektonic
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North-West Atlantic Ocean species (NWARMS)
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=2901
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high-oceanic; found between 175-550 m during the day and near the surface to about 225 m at night
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North-West Atlantic Ocean species (NWARMS)
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=2901
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Known from seamounts and knolls
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Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
http://www.marinespecies.org/porifera/porifera.php?p=sourcedetails&id=145453
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Depth range based on 95 specimens in 1 taxon.
Water temperature and chemistry ranges based on 87 samples.
Environmental ranges
Depth range (m): 37.03 - 3436.5
Temperature range (°C): 1.433 - 25.424
Nitrate (umol/L): 0.189 - 37.060
Salinity (PPS): 34.321 - 37.075
Oxygen (ml/l): 1.310 - 6.024
Phosphate (umol/l): 0.034 - 2.605
Silicate (umol/l): 0.829 - 130.945
Graphical representation
Depth range (m): 37.03 - 3436.5
Temperature range (°C): 1.433 - 25.424
Nitrate (umol/L): 0.189 - 37.060
Salinity (PPS): 34.321 - 37.075
Oxygen (ml/l): 1.310 - 6.024
Phosphate (umol/l): 0.034 - 2.605
Silicate (umol/l): 0.829 - 130.945
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Water temperature and chemistry ranges based on 87 samples.
Environmental ranges
Depth range (m): 37.03 - 3436.5
Temperature range (°C): 1.433 - 25.424
Nitrate (umol/L): 0.189 - 37.060
Salinity (PPS): 34.321 - 37.075
Oxygen (ml/l): 1.310 - 6.024
Phosphate (umol/l): 0.034 - 2.605
Silicate (umol/l): 0.829 - 130.945
Graphical representation
Depth range (m): 37.03 - 3436.5
Temperature range (°C): 1.433 - 25.424
Nitrate (umol/L): 0.189 - 37.060
Salinity (PPS): 34.321 - 37.075
Oxygen (ml/l): 1.310 - 6.024
Phosphate (umol/l): 0.034 - 2.605
Silicate (umol/l): 0.829 - 130.945
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Depth: 0 - 600m.
Recorded at 600 meters.
Habitat: bathypelagic. Oceanic and mesopelagic. Found in 175-550 m during the day and near the surface to about 225 m at night (Ref. 4066). Large males partially or non-migratory (Ref. 4066). Exhibits dwarfing in minimum region off Brazil with maximum SL about 3.6 cm and sexual maturity from about 2.7 cm (Ref. 4479). Spawns mainly in summer in Hawaii (Ref. 4775).
Recorded at 600 meters.
Habitat: bathypelagic. Oceanic and mesopelagic. Found in 175-550 m during the day and near the surface to about 225 m at night (Ref. 4066). Large males partially or non-migratory (Ref. 4066). Exhibits dwarfing in minimum region off Brazil with maximum SL about 3.6 cm and sexual maturity from about 2.7 cm (Ref. 4479). Spawns mainly in summer in Hawaii (Ref. 4775).
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Migration
Oceanodromous. Migrating within oceans typically between spawning and different feeding areas, as tunas do. Migrations should be cyclical and predictable and cover more than 100 km.
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Riede, K. 2004 Global register of migratory species - from global to regional scales. Final Report of the R&D-Projekt 808 05 081. Federal Agency for Nature Conservation, Bonn, Germany. 329 p. (Ref. 51243)
http://www.fishbase.org/references/FBRefSummary.php?id=51243&speccode=4683
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Trophic Strategy
High-oceanic (Ref. 4479). Found between 175-550 m during the day and near the surface to about 225 m at night (Ref. 4066). Large males partially or non-migratory (Ref. 4066). Exhibit dwarfing in minimum region off Brazil with a maximum length of about 3.6 cm SL and sexual maturity from about 2.7 cm SL (Ref. 4479).
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Hulley, P.A. 1986 Myctophidae. p. 282-321. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4066)
http://www.fishbase.org/references/FBRefSummary.php?id=4066&speccode=10238
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Molecular Biology and Genetics
Molecular Biology
Barcode data: Diaphus brachycephalus
The following is a representative barcode sequence, the centroid of all available sequences for this species.

No available public DNA sequences.
Download FASTA File
No available public DNA sequences.
Download FASTA File
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Statistics of barcoding coverage: Diaphus brachycephalus
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 15
Species With Barcodes: 1
Public Records: 1
Specimens with Barcodes: 15
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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