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)
  • Riede, K. 2004 Global register of migratory species - from global to regional scales. Final Report of the R&D-Projekt 808 05 081. Federal Agency for Nature Conservation, Bonn, Germany. 329 p. (Ref. 51243)
  • Schneider, W. 1990 FAO species identification sheets for fishery purposes. Field guide to the commercial marine resources of the Gulf of Guinea. Prepared and published with the support of the FAO Regional Office for Africa. Rome: FAO. 268 p. (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
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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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).
  • Riede, K. 2004 Global register of migratory species - from global to regional scales. Final Report of the R&D-Projekt 808 05 081. Federal Agency for Nature Conservation, Bonn, Germany. 329 p. (Ref. 51243)
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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
  • 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: minor commercial; price category: medium; price reliability: very questionable: based on ex-vessel price for species in this family
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Wikipedia

Dark moray eel

The dark moray eel, 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][2]

References[edit]

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


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