Overview

Comprehensive Description

Biology

Benthic, reported as deep as 2295m (Ref. 58426). Taken much shallower in areas with cold surface waters. Feeds primarily on euphausiids, amphipods, and polychaetes, although a 200 mm individual had many copepods in its stomach (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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Distribution

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

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Newfoundland to the northern end of the Straits of Florida
  • North-West Atlantic Ocean species (NWARMS)
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Northwest Atlantic: Newfoundland, Canada to the northern end of the Straits of Florida, USA. A species reported from the northeastern Atlantic (Ref. 6321) should be reexamined. Report of specimen from the Azores and records from the Gulf of Mexico and West Indies (Ref. 6322) probably refer to other species.
  • 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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Atlantic.
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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: 400 mm TL
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Max. size

40.0 cm TL (male/unsexed; (Ref. 1371)); max. reported age: 11 years (Ref. 40732)
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Diagnostic Description

Snout pointed; naked area on snout confined to median-ventral strip, otherwise head surfaces completely scaled. Spinules on scales slender, conical to lanceolate, arranged in convergent rows. Color when fresh gray with violet hue on trunk and lower jaw; silvery reflections on gill cover, parts of the suborbital, and trunk and tail below the lateral line; pelvic fins and membrane between spinous dorsal ray and first segmented ray black; pectoral and median fins otherwise dusky; oral and branchial cavities mostly black.
  • 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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Ecology

Habitat

Habitat Type: Marine

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nektonic
  • North-West Atlantic Ocean species (NWARMS)
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Found at depths of 16- 700 m on muddy bottoms.
  • North-West Atlantic Ocean species (NWARMS)
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Environment

benthopelagic; non-migratory; marine; depth range 16 - 1000 m (Ref. 1371), usually 90 - 700 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 7953 specimens in 1 taxon.
Water temperature and chemistry ranges based on 5553 samples.

Environmental ranges
  Depth range (m): 34.5 - 3670
  Temperature range (°C): -2.072 - 16.385
  Nitrate (umol/L): 3.201 - 26.300
  Salinity (PPS): 31.733 - 36.159
  Oxygen (ml/l): 3.207 - 7.729
  Phosphate (umol/l): 0.492 - 1.829
  Silicate (umol/l): 3.152 - 37.185

Graphical representation

Depth range (m): 34.5 - 3670

Temperature range (°C): -2.072 - 16.385

Nitrate (umol/L): 3.201 - 26.300

Salinity (PPS): 31.733 - 36.159

Oxygen (ml/l): 3.207 - 7.729

Phosphate (umol/l): 0.492 - 1.829

Silicate (umol/l): 3.152 - 37.185
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 90 - 700m.
From 90 to 700 meters.

Habitat: benthopelagic.
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Migration

Non-Migrant: No. All populations of this species make significant seasonal migrations.

Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: No. No populations of this species make annual migrations of over 200 km.

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Trophic Strategy

Taken much shallower in areas with cold surface waters. Feeds primarily on euphausiids, amphipods, and polychaetes, although a 200 mm individual had many copepods in its stomach (Ref. 1371). Consumed primarily benthic organisms (Ref. 51343). It is preyed upon by swordfish (Xiphias gladius). Parasites of the species include 3 myxosporidians, 2 cestodes, 3 nematodes, 3 trematodes, 1 monogenean (Diclidophora nezumiae and 1 acanthocephalan (Ref. 5951).
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Life History and Behavior

Behavior

Diet

Feeds on benthic euphausiids, amphipods
  • North-West Atlantic Ocean species (NWARMS)
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Nezumia bairdii

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 15
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: minor commercial; price category: medium; price reliability: very questionable: based on ex-vessel price for species in this family
  • 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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Names and Taxonomy

Taxonomy

Comments: Original ending ends with -ii.

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