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Overview

Comprehensive Description

Biology

Feed mostly on fishes and krill.
  • Hureau, J.-C. 1985 Channichthyidae. p. 261-277. In W. Fischer and J.C. Hureau (eds.) FAO species identification sheets for fishery purposes. Southern Ocean (Fishing areas 48, 58 and 88). Rome. Vol. 2. (Ref. 2805)
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Distribution

Southern Ocean: Patagonian-Falkland region, Straits of Magellan and rarely at South Georgia.
  • Hureau, J.-C. 1985 Channichthyidae. p. 261-277. In W. Fischer and J.C. Hureau (eds.) FAO species identification sheets for fishery purposes. Southern Ocean (Fishing areas 48, 58 and 88). Rome. Vol. 2. (Ref. 2805)
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Southern oceans.
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Physical Description

Morphology

Dorsal spines (total): 9; Dorsal soft rays (total): 32; Analspines: 0; Analsoft rays: 31; Vertebrae: 57 - 60
  • Balushkin, A.V. 1996 Similarity of fish of family Channichthyidae (Notothenioidei, Perciformes), with remarks on the species composition of the family and the description of a new species from the Kerguelen Archipelago. J. Ichthyol. 36(1):1-10. (Ref. 27675)
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Size

Maximum size: 350 mm SL
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Max. size

35.0 cm SL (male/unsexed; (Ref. 5200))
  • Iwami, T. and K.-H. Kock 1990 Channichthyidae. p. 381-389. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. 462 p. (Ref. 5200)
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Diagnostic Description

Posterior margin of caudal fin emarginate. No scales except on lateral line. Body brown, irregularly mottled (Ref. 27363).
  • Balushkin, A.V. 1996 Similarity of fish of family Channichthyidae (Notothenioidei, Perciformes), with remarks on the species composition of the family and the description of a new species from the Kerguelen Archipelago. J. Ichthyol. 36(1):1-10. (Ref. 27675)
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Ecology

Habitat

Environment

demersal; marine; depth range 50 - 250 m (Ref. 27363)
  • Nakamura, I., T. Inada, M. Takeda and H. Hatanaka 1986 Important fishes trawled off Patagonia. Japan Marine Fishery Resource Research Center, Tokyo. 369 p. (Ref. 27363)
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Depth range based on 7 specimens in 1 taxon.
Water temperature and chemistry ranges based on 2 samples.

Environmental ranges
  Depth range (m): 2 - 74.1
  Temperature range (°C): 6.399 - 6.399
  Nitrate (umol/L): 16.030 - 16.030
  Salinity (PPS): 34.057 - 34.057
  Oxygen (ml/l): 6.666 - 6.666
  Phosphate (umol/l): 1.160 - 1.160
  Silicate (umol/l): 6.116 - 6.116

Graphical representation

Depth range (m): 2 - 74.1
 
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Depth: 50 - 250m.
From 50 to 250 meters.

Habitat: demersal.
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Trophic Strategy

Feed mostly on fishes and krill.
  • Hureau, J.-C. 1985 Channichthyidae. p. 261-277. In W. Fischer and J.C. Hureau (eds.) FAO species identification sheets for fishery purposes. Southern Ocean (Fishing areas 48, 58 and 88). Rome. Vol. 2. (Ref. 2805)
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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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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial
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Wikipedia

Champsocephalus esox

The pike icefish, Champsocephalus esox, is a species of icefish found at depths of 50–250 m (160–820 ft) in the oceans off Patagonia, the Falklands and South Georgia.[1] It reaches 35 cm (14 in) in length and mainly feeds on fishes and krill.[1]

References

  1. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2012). "Champsocephalus esox" in FishBase. May 2012 version.


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