Overview

Comprehensive Description

Biology

Oceanic, found between 375-750 m during the day and nyctoepipelagic at surface down to 125 m (Ref. 4479). Mesopelagic at 0-240 m at night, 315-1500 m during day (Ref. 58302). Seem to reach sexual maturity at a length between 5 and 5.5 cm (Ref. 47377).
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Distribution

off Sable Island Bank to Argentina
  • North-West Atlantic Ocean species (NWARMS)
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Eastern Atlantic: Western Sahara to Cape of Good Hope, South Africa (Agulhas Water pockets). Western Atlantic: USA to Argentina; between 27°30'N and 35°56'S (Ref. 47377). Northwest Atlantic: Canada (Ref. 5951). Eastern Pacific: Near Hawaii. Western Pacific: 36°N and 1°S southwards to East Australian Current. Western Indian Ocean: west of 70°E between 7°N-25°S, and in Agulhas Current to 37°S. South China Sea (Ref.74511).
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Circumglobal in tropical through temperate seas, including Hawaiian islands, but except Eastern Pacific.
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 15 - 17; Analspines: 0; Analsoft rays: 14 - 16
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Size

Maximum size: 71 mm SL
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Max. size

7.1 cm SL (male/unsexed; (Ref. 4479))
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Ecology

Habitat

Known from seamounts and knolls
  • Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
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nektonic
  • North-West Atlantic Ocean species (NWARMS)
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Occasionally found in Canadian Atlantic waters. Found to depths of 750 m.
  • North-West Atlantic Ocean species (NWARMS)
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Environment

bathypelagic; oceanodromous (Ref. 51243); marine; depth range 0 - 1500 m (Ref. 50610)
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Depth range based on 78 specimens in 1 taxon.
Water temperature and chemistry ranges based on 60 samples.

Environmental ranges
  Depth range (m): 21 - 1517.5
  Temperature range (°C): 3.606 - 22.041
  Nitrate (umol/L): 0.189 - 35.040
  Salinity (PPS): 34.414 - 36.622
  Oxygen (ml/l): 1.402 - 5.764
  Phosphate (umol/l): 0.034 - 2.406
  Silicate (umol/l): 0.829 - 75.870

Graphical representation

Depth range (m): 21 - 1517.5

Temperature range (°C): 3.606 - 22.041

Nitrate (umol/L): 0.189 - 35.040

Salinity (PPS): 34.414 - 36.622

Oxygen (ml/l): 1.402 - 5.764

Phosphate (umol/l): 0.034 - 2.406

Silicate (umol/l): 0.829 - 75.870
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 0 - 750m.
Recorded at 750 meters.

Habitat: bathypelagic.
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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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Trophic Strategy

Oceanic, found between 375-750 m during the day and nyctoepipelagic at surface down to 125 m (Ref. 4479). Mesopelagic at 0-240 m at night, 315-1500 m during day (Ref. 58302).
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Associations

Known predators

Diaphus elucens (Diaphus coeruleus, D. elucens, other myctophids) is prey of:
Todarodes pacificus
Stenella

Based on studies in:
Japan (Brackish water, epipelagic zone)

This list may not be complete but is based on published studies.
  • K. Hogetsu, Biological productivity of some coastal regions of Japan. In: Marine Production Mechanisms, M. J. Dunbar, Ed. (International Biological Programme Series, no. 20, Cambridge Univ. Press, Cambridge, England, 1979), pp. 71-87, from p. 74.
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Known prey organisms

Diaphus elucens (Diaphus coeruleus, D. elucens, other myctophids) preys on:
Euphausia pacifica
Euphausia similis
Sergia lucens

Based on studies in:
Japan (Brackish water, epipelagic zone)

This list may not be complete but is based on published studies.
  • K. Hogetsu, Biological productivity of some coastal regions of Japan. In: Marine Production Mechanisms, M. J. Dunbar, Ed. (International Biological Programme Series, no. 20, Cambridge Univ. Press, Cambridge, England, 1979), pp. 71-87, from p. 74.
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Diaphus perspicillatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 4
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
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