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Psenes arafurensis Günther, 1889
DUSKY DRIFTFISH
Arafura Eyebrowfish; Banded Driftfish; Banded fat-head

Life   Vertebrata   Fish   Nomeidae   Psenes

Psenes arafurensis
© Copyright Ross Robertson, 2006 · 12
Psenes arafurensis

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  • Australian Faunal Directory
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Overview
Main identification features
  • deep body; eye large
  • 2nd dorsal fin : 20-23; anal fin has 21-23 rays
  • adult dark;juvenile barred
  • bottom teeth greater than top
  • pectoral long, pointed
Adult with deep, compressed body (>40% standard length); fatty ring around large eye; operculum thin, with 2 short spines; mouth small, at front; jaw teeth small, conical, 1 row, adult lower jaw with long knife-like teeth; 2 dorsal fins, rays X-XI + I-II, 20-23, can fold into groove; 1st dorsal origin over or before pectoral base; anal III, 21-23; adult pectoral long, bluntly pointed (short, rounded in juvenile), 18-20 rays; tail forked, tips rounded in juvenile, sharply pointed in adult; pelvic inserted before or below pectoral; lateral line high along back; branched mucous canal along length of flank; scales small, 55-62 on lateral line; bases of dorsal and anal with scaly sheath; scales extend forward onto nape as tongue-shaped patch reaching between eyes.

Adult uniform dark to black, bases of median fins not translucent; juvenile silvery to pale brown, with mottling or barring.

Size: 25 cm.

Habitat: oceanic.

Depth: 0-500 m?.

Circumtropical; Costa Rica to Peru and the offshore islands except the Revillagigedos.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ).
Depth Range Max: 500 m.
Depth Range Min: 0 m.
Diet: pelagic jellyfish/ctenophores; zooplankton; bony fishes; pelagic fish larvae.
Eastern Pacific Range: Northern limit=11; Southern limit=-10; Western limit=-110; Eastern limit=-78; Latitudinal range=21; Longitudinal range=32.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore; Planktivore.
FishBase Habitat: Pelagic.
Global Endemism: Circumtropical ( Indian + Pacific + Atlantic Oceans); East Pacific + Atlantic (East +/or West); East Pacific + all Atlantic (East+West); TEP non-endemic; All species.
Habitat: Water column.
Inshore Offshore: Offshore; Offshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 25 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); Tropical Eastern Pacific (TEP) non-endemic; Eastern Pacific non-endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Mid Water; Near Surface; Surface; Water column only;


Names
Scientific source:

Links to other sites

References
  • Ahlstrom , E. H. , Butler , J. L..and Sumida, B. Y., 1976., Pelagic stromateoid fishes (Pisces, Perciformes) of the eastern Pacific: Kinds, distributions and early life histories and observations on five of these from the northwest Atlantic., Bull. Mar. Sci., 26:285-402.
  • Grove , J.S. and Lavenberg, R. J., 1997., The fishes of the Galápagos islands., Stanford University Press:863 pp.
  • Günther, A., 1889., Report on the pelagic fishes collected by H. M. S. Challenger during the years 1873-76., Rep. Sci. Res. Voy. H.M.S. Challenger, 31:1-47.
  • Haedrich, R.L., 1967., The stromateoid fishes; systematics and a classification., Bull. Mus. Comp. Zool., Harvard, 135(2):31-139.
  • Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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