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Overview

Comprehensive Description

Biology

Benthic (Ref. 58302). Found on the continental rise and the abyss, commonly below 2,000 m, in water colder than 4°C. Larvae are probably pelagic in near-surface midwaters. Solitary, lurking bottom feeder. Probably piscivore (Ref. 4964).
  • Sulak, K.J. 1990 Synodontidae. p. 365-370. 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. 4472)
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Distribution

circumglobal between latitude 50°N-20°S except tropical eastern Pacific
  • North-West Atlantic Ocean species (NWARMS)
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Circumglobal between latitude 50°N-20°S except tropical eastern Pacific. Eastern Atlantic: northern Ireland; Morocco to Gabon.
  • Sulak, K.J. 1990 Synodontidae. p. 365-370. 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. 4472)
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Circumglobal, including Hawaiian Islands, but except Eastern Pacific; strays into Western Mediterranean Sea.
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Physical Description

Morphology

Dorsal soft rays (total): 16 - 17; Analsoft rays: 13; Vertebrae: 50 - 51
  • Mead, G.W. 1966 Family Bathysauridae, Bathypteroidae, Ipnopidae and Chlorophthalmidae. p. 103-189. In W.W. Anderson et al. Fishes of the western North Atlantic. Part five. New Haven, Sears Found. Mar. Res., Yale Univ. (Ref. 39983)
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Size

Maximum size: 780 mm SL
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Max. size

78.0 cm SL (male/unsexed; (Ref. 4472))
  • Sulak, K.J. 1990 Synodontidae. p. 365-370. 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. 4472)
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Diagnostic Description

Moderately elongate and slender. Slightly depressed anteriorly and compressed posteriorly. Color generally white, with peritoneum, branchial and buccal regions dark. Small specimens have faint vertical bars (Ref. 37039).
  • Mead, G.W. 1966 Family Bathysauridae, Bathypteroidae, Ipnopidae and Chlorophthalmidae. p. 103-189. In W.W. Anderson et al. Fishes of the western North Atlantic. Part five. New Haven, Sears Found. Mar. Res., Yale Univ. (Ref. 39983)
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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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benthic
  • North-West Atlantic Ocean species (NWARMS)
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Found on the continental rise and the abyss, commonly below 2,000 m, in water colder than 4°C.
  • North-West Atlantic Ocean species (NWARMS)
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Environment

bathydemersal; marine; depth range 1550 - 4903 m (Ref. 58302), usually ? - 2000 m (Ref. 4472)
  • Mundy, B.C. 2005 Checklist of the fishes of the Hawaiian Archipelago. Bishop Museum Bulletins in Zoology. Bishop Mus. Bull. Zool. (6):1-704. (Ref. 58302)
  • Sulak, K.J. 1990 Synodontidae. p. 365-370. 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. 4472)
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Depth range based on 16 specimens in 1 taxon.
Water temperature and chemistry ranges based on 12 samples.

Environmental ranges
  Depth range (m): 380 - 4844
  Temperature range (°C): 1.549 - 14.350
  Nitrate (umol/L): 10.727 - 37.689
  Salinity (PPS): 34.683 - 35.241
  Oxygen (ml/l): 2.967 - 6.253
  Phosphate (umol/l): 0.840 - 2.795
  Silicate (umol/l): 6.492 - 178.536

Graphical representation

Depth range (m): 380 - 4844

Temperature range (°C): 1.549 - 14.350

Nitrate (umol/L): 10.727 - 37.689

Salinity (PPS): 34.683 - 35.241

Oxygen (ml/l): 2.967 - 6.253

Phosphate (umol/l): 0.840 - 2.795

Silicate (umol/l): 6.492 - 178.536
 
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Depth: 1550 - 4800m.
From 1550 to 4800 meters.

Habitat: bathydemersal. Found on the continental rise and the abyss, commonly below 2,000 m, in water colder than 4°C. Larvae are probably pelagic in near-surface midwaters. Solitary, lurking bottom feeder. Probably piscivorous (Ref. 4964).
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Trophic Strategy

Found on the continental rise and the abyss, commonly below 2,000 m, in water colder than 4°C. Larvae are probably pelagic in near-surface midwaters. Solitary, lurking bottom feeder. Probably piscivore (Ref. 4964).
  • Sulak, K.J. 1984 Synodontidae (including Macristiidae and Bathysauridae). p. 405-411. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. vol. 1. (Ref. 4964)
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Life History and Behavior

Behavior

Diet

Solitary, lurking bottom feeder. Probably piscivorous
  • North-West Atlantic Ocean species (NWARMS)
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Life Cycle

Contrary to Ref. 240 this species is an hermaphrodite (Ref. 7463).
  • Nelson, J.S. 1994 Fishes of the world. Third edition. John Wiley & Sons, Inc., New York. 600 p. (Ref. 7463)
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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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Wikipedia

Bathysaurus mollis

Bathysaurus mollis is a species of fish in the Bathysauridae family, commonly called bathysaur or highfin lizardfish.

References[edit]

  • Froese, Rainer and Pauly, Daniel, eds. (2012). "Bathysaurus mollis" in FishBase. April 2012 version.
  • Kenneth J. Sulak, Charles A. Wenner, George R. Sedberry, and Louis Van Guelpen, The life history and systematics of deep-sea lizard fishes, genus Bathysaurus (Synodontidae), Can. J. Zool. 63(3): 623–642 (1985).
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