Facts about Halfbarred Pout (Gymnelus hemifasciatus)

The most abundant Gymnelus species in the western Arctic

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Juveniles light tan with dark brownish to greenish reticulation and checkering on back and upper sides; Females develop dark bands down to lateral line or almost to anal fin. Males develop dark orange bands reaching anal fin, and anal fin turns black; In both sexes top of head and back typically retain reticulation; Bands narrower and more numerous than in G. viridis; One or more ocelli may be present on dorsal fin; Dorsal fin origin usually above anterior half of pectoral fin; pectoral fin rays usually 10 or 11

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Biology

Inhabits continental shelves (Ref. 11954). Minimum depth from type locality data (Ref. 51665). Benthic (Ref. 58426).

Anderson, M.E. 1994 Systematics and osteology of the Zoarcidae (Teleostei: Perciformes). Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. 60:120 p. (Ref. 11954) http://www.fishbase.org/references/FBRefSummary.php?id=11954&speccode=49218

Source: FishBase

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Distribution

National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

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Arctic: Kara Sea east to Canada and in the Bering and Okhotsk seas.

Anderson, M.E. 1994 Systematics and osteology of the Zoarcidae (Teleostei: Perciformes). Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. 60:120 p. (Ref. 11954) http://www.fishbase.org/references/FBRefSummary.php?id=11954&speccode=49218

Source: FishBase

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Size

Maximum size: 105 mm SL

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Source: FishWise Professional

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Max. size

10.5 cm SL (male/unsexed; (Ref. 11954))

Anderson, M.E. 1994 Systematics and osteology of the Zoarcidae (Teleostei: Perciformes). Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. 60:120 p. (Ref. 11954) http://www.fishbase.org/references/FBRefSummary.php?id=11954&speccode=49218

Source: FishBase

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Habitat

Depth range based on 79 specimens in 1 taxon.
Water temperature and chemistry ranges based on 43 samples.

Environmental ranges
  Depth range (m): 6 - 216
  Temperature range (°C): -1.570 - 5.706
  Nitrate (umol/L): 1.704 - 33.106
  Salinity (PPS): 31.826 - 34.633
  Oxygen (ml/l): 3.502 - 8.635
  Phosphate (umol/l): 0.258 - 2.635
  Silicate (umol/l): 2.500 - 77.461

Graphical representation

Depth range (m): 6 - 216

Temperature range (°C): -1.570 - 5.706

Nitrate (umol/L): 1.704 - 33.106

Salinity (PPS): 31.826 - 34.633

Oxygen (ml/l): 3.502 - 8.635

Phosphate (umol/l): 0.258 - 2.635

Silicate (umol/l): 2.500 - 77.461

Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Public Domain

Source: Ocean Biogeographic Information System

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Habitat Type: Marine

Source: NatureServe

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Arctic and subarctic faunal regions; Benthic, from intertidal area to depth of 200 m, mostly at 35-80 m; Found on mud and gravel bottoms

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Environment

demersal; marine; depth range 9 - 175 m (Ref. 36338)

Chernova, N.V. 2000 Four new species of Gymnelus (Zoarcidae) from the Far Eastern Seas with genus diagnosis and key to species. J. Ichthyol. 40(1):1-12. (Ref. 36338) http://www.fishbase.org/references/FBRefSummary.php?id=36338&speccode=47878

Source: FishBase

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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

Inhabits continental shelves (Ref. 11954). Minimum depth from type locality data (Ref. 51665). Benthic (Ref. 58426).

Source: FishBase

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Prey on gammarid amphipods, polychaetes, bivalves, other benthic invertebrates; Eaten by seals, seabirds, cods and other fishes

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Life Cycle

Spawn in late August to September; Females mature at 70-80 mm; Release 8-26 eggs, 2.5-4.5 mm in diameter

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Molecular Biology

Barcode data: Gymnelus hemifasciatus

The following is a representative barcode sequence, the centroid of all available sequences for this species.

There are 28 barcode sequences available from BOLD and GenBank. Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

DSFAL301-07|OSHORO2007-19|Gymnelus hemifasciatus| ------------------------------------------CTTTATCTAGTATTTGGTGCCTGAGCCGGAATAGTGGGCACAGCCCTA---AGCCTCCTCATTCGAGCGGAGCTAAGCCAACCCGGCGCCCTCTTGGGGGAC---GACCAAATTTATAATGTCCTTGTCACGGCACATGCGTTCGTAATAATTTTCTTTATAGTAATACCAATCATGATTGGGGGGTTTGGAAACTGGCTTGTCCCCCTGATA---ATCGGGGCCCCGGACATAGCATTTCCCCGAATAAACAACATGAGCTTTTGACTCCTTCCCCCATCTTTTCTCCTCCTCCTTGCCTCTTCCGGGGTAGAGGCTGGGGCTGGTACGGGGTGAACAGTCTACCCCCCGCTTTCTGGCAATTTAGCGCATGCAGGGGCCTCTGTTGATTTA---ACAATCTTTTCCCTTCACCTAGCGGGGATCTCCTCCATCCTTGGAGCAATTAATTTTATTACAACCATTATTAACATGAAGCCCCCTGCGATTTCTCAGTACCAGACGCCTCTTTTCGTCTGATCAGTACTTATTACGGCGGTCCTACTACTTCTTTCCCTCCCCGTGCTTGCAGCT---GGTATTACCATGCTCCTAACGGACCGTAACCTTAACACCACCTTCTTCGACCCTGCCGGAGGAGGGGACCCAATCCTTTACCAA-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- end --

Download FASTA File

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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Gymnelus hemifasciatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 28
Species: 36
Species With Barcodes: 1

Source: Barcode of Life Data Systems (BOLD)

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Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

Source: NatureServe

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Threats

Not Evaluated

IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. http://www.fishbase.org/references/FBRefSummary.php?id=57073

Source: FishBase

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