Overview

Comprehensive Description

Biology

Mesopelagic species (Ref. 27121).
  • Gibbs, R.H. Jr. 1990 Astronesthidae. p. 300-307. 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. 4465)
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Distribution

Eastern Atlantic between 23°30'N and 24°S.
  • Parin, N.V. and O.D. Borodulina 2000 Redescriptions and new data on the distribution of six rare and poorly known species of the mesopelagic fish genus Astronesthes (Astronesthidae). J. Ichthyol. (40) Suppl. 1:S15-S30. (Ref. 86868)
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Atlantic.
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 13 - 15; Analspines: 0; Analsoft rays: 16 - 19
  • Gibbs, R.H. Jr. 1986 Astronesthidae. p. 231-234. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3982)
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Size

Maximum size: 262 mm SL
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Max. size

26.2 cm SL (male/unsexed; (Ref. 4465))
  • Gibbs, R.H. Jr. 1990 Astronesthidae. p. 300-307. 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. 4465)
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Diagnostic Description

Body black, head with small pale dots (developing with growth) behind eye and on gill cover (Ref. 3982). Barbel without apparent terminal modification (Ref. 37473).
  • Gibbs, R.H. Jr. 1986 Astronesthidae. p. 231-234. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3982)
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Ecology

Habitat

Environment

pelagic-oceanic; marine; depth range 100 - ? m (Ref. 58018)
  • Bogutskaya, N.G. 2007 Preliminary assignment of coordinates to type localities in the Catalog of Fishes. Unpublished dbf file. (Ref. 58018)
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Depth range based on 8 specimens in 1 taxon.
Water temperature and chemistry ranges based on 6 samples.

Environmental ranges
  Depth range (m): 111 - 1400
  Temperature range (°C): 4.208 - 14.183
  Nitrate (umol/L): 22.428 - 36.323
  Salinity (PPS): 34.872 - 35.481
  Oxygen (ml/l): 1.558 - 4.754
  Phosphate (umol/l): 1.472 - 2.386
  Silicate (umol/l): 8.753 - 32.596

Graphical representation

Depth range (m): 111 - 1400

Temperature range (°C): 4.208 - 14.183

Nitrate (umol/L): 22.428 - 36.323

Salinity (PPS): 34.872 - 35.481

Oxygen (ml/l): 1.558 - 4.754

Phosphate (umol/l): 1.472 - 2.386

Silicate (umol/l): 8.753 - 32.596
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Conservation

Threats

Not Evaluated
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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