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Overview

Distribution

Range Description

The Humboldt Grenadier, Coryphaenoides ariommus, is distributed from northern Peru to southern Chile. It is also found in the eastern Central Pacific.
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Southeast Pacific: northern Peru to southern Chile. Also Eastern Central Pacific (Ref. 9315).
  • Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba 1990 FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)   http://www.fishbase.org/references/FBRefSummary.php?id=1371&speccode=25 External link.
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Eastern Pacific.
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Physical Description

Morphology

Dorsal spines (total): 2; Analspines: 0
  • Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba 1990 FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)   http://www.fishbase.org/references/FBRefSummary.php?id=1371&speccode=25 External link.
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Size

Maximum size: 460 mm TL
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Max. size

46.0 cm TL (male/unsexed; (Ref. 1371))
  • Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba 1990 FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)   http://www.fishbase.org/references/FBRefSummary.php?id=1371&speccode=25 External link.
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Diagnostic Description

Eyes large, its diameter 25 to 36 percent of head length; snout short, moderately pointed, its underside and leading edge naked except for scutes at the tip and lateral angles; chin with very small barbel. Scales on body with spinules (conical in young, more triangular and flattened in adults) arranged in divergent longitudinal rows. Overall color is light to medium brown; lips and barbel dark brown; oral cavity blackish.
  • Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba 1990 FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)   http://www.fishbase.org/references/FBRefSummary.php?id=1371&speccode=25 External link.
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Type Information

Type for Coryphaenoides ariommus Gilbert & Thompson
Catalog Number: USNM 76859
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Year Collected: 1888
Locality: Off Chile, South America, Chile, Pacific
Depth (m): 1238
Vessel: Albatross
  • Type: Gilbert, C. H. & Thompson, W. F. 1915 (1916). Proceedings of the United States National Museum. 50 (2133): 471.
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Paratype for Coryphaenoides ariommus Gilbert & Thompson
Catalog Number: USNM 76891
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Year Collected: 1888
Locality: Off Chile, South America, Chile, Pacific
Depth (m): 1238
Vessel: Albatross
  • Paratype: Gilbert, C. H. & Thompson, W. F. 1915 (1916). Proceedings of the United States National Museum. 50 (2133): 471.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
The grenadier, Coryphaenoides ariommus, is a bathydemersal species and occurs along the middle levels of the continental slope at depths of 768 - 1,860m (Cohen et al. 1990).

Systems
  • Marine
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Environment

bathydemersal; non-migratory; marine; depth range 768 - 1860 m (Ref. 1371)
  • Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba 1990 FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)   http://www.fishbase.org/references/FBRefSummary.php?id=1371&speccode=25 External link.
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Depth range based on 5 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 950 - 1837.5
  Temperature range (°C): 3.242 - 3.806
  Nitrate (umol/L): 21.582 - 38.659
  Salinity (PPS): 34.477 - 34.959
  Oxygen (ml/l): 2.964 - 5.450
  Phosphate (umol/l): 1.441 - 2.845
  Silicate (umol/l): 22.187 - 83.895

Graphical representation

Depth range (m): 950 - 1837.5

Temperature range (°C): 3.242 - 3.806

Nitrate (umol/L): 21.582 - 38.659

Salinity (PPS): 34.477 - 34.959

Oxygen (ml/l): 2.964 - 5.450

Phosphate (umol/l): 1.441 - 2.845

Silicate (umol/l): 22.187 - 83.895
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 768 - 1860m.
From 768 to 1860 meters.

Habitat: benthopelagic.
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Iwamoto, T.

Reviewer/s
Collen, B., Richman, N., Beresford, A., Chenery, A. & Ram, M.

Contributor/s
De Silva, R., Milligan, H., Lutz, M., Batchelor, A., Jopling, B., Kemp, K., Lewis, S., Lintott, P., Sears, J., Wilson, P. & Smith, J. and Livingston, F.

Justification
The Humboldt Grenadier, Coryphaenoides ariommus, has been assessed as Least Concern. This species is reported to be locally abundant in areas of its range. This species is of no commercial value, and due to the deepwater nature of this species it is unlikely to be significantly impacted by most human and climatic threats.
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Population

Population
The Humboldt Grenadier is locally abundant and was among the most frequently captured species during a survey of Chilean demersal fishes (Sielfeld and Vargas 1996).

Population Trend
Unknown
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Threats

Major Threats
This species is of no commercial value. Some species from the Macrouridae family are taken in quantity as by-catch in deep-water shrimp trawlers (FAO 2002), however this threat is unlikely to be significantly impacting the Humboldt Grenadier across its entire distribution.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no known species-specific conservation measures in place for the Humboldt Grenadier.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: subsistence fisheries
  • Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba 1990 FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)   http://www.fishbase.org/references/FBRefSummary.php?id=1371&speccode=25 External link.
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