Overview

Comprehensive Description

Biology

Inhabits rocky bottoms (Ref. 2683).
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Distribution

Eastern Atlantic: Mauritania to Cape Frio, Namibia.
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Eastern Atlantic: Mauritania to Namibia, including offshore islands.
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Physical Description

Size

Maximum size: 1000 mm TL
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Max. size

100.0 cm TL (male/unsexed; (Ref. 4450))
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Ecology

Habitat

Environment

demersal; amphidromous (Ref. 51243); brackish; marine; depth range 10 - 45 m (Ref. 2683)
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Depth range based on 1 specimen in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 20 - 20
  Temperature range (°C): 24.687 - 24.687
  Nitrate (umol/L): 0.491 - 0.491
  Salinity (PPS): 36.024 - 36.024
  Oxygen (ml/l): 4.899 - 4.899
  Phosphate (umol/l): 0.152 - 0.152
  Silicate (umol/l): 1.010 - 1.010
 
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Depth: 10 - 45m.
From 10 to 45 meters.

Habitat: demersal. Inhabits rocky bottoms from 10 to 45 m depth (Ref. 2683).
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Migration

Amphidromous. Refers to fishes that regularly migrate between freshwater and the sea (in both directions), but not for the purpose of breeding, as in anadromous and catadromous species. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there (Ref. 82692).
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Gymnothorax afer

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

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
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Wikipedia

Gymnothorax afer

Gymnothorax afer is a moray eel found in the eastern Atlantic ocean, from Mauritania to Cape Frio, Namibia.[1] It was first named by Marcus Elieser Bloch in 1795,[1] and is commonly known as the dark moray.[2]

References

  1. ^ a b Gymnothorax afer at www.fishbase.org.
  2. ^ Common names for Gymnothorax afer at www.fishbase.org.
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