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Alestes dentex (Linnaeus, 1758)
CHARACIN
Life   Vertebrata   Fish   Alestiidae   Alestes


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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Alestes&speciesname=dentex ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Alestes&speciesname=dentex
http://192.134.151.83/Summary/speciesSummary.php?genusname=Alestes&speciesname=dentex ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Alestes&speciesname=dentex
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Alestes dentex, Characin : fisheries
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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Alestes dentex ( Linnaeus , 1758 )

Characin Upload your photos  and  videos
Pictures | Google image Image of Alestes dentex (Characin) Alestes dentex
Picture by Nightingale, A.

Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Characiformes (Characins) > Alestidae (African tetras)
Etymology: Alestes: Greek, alestes, -oy = miller (Ref. 45335 ) .
More on author: Linnaeus .

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; pelagic; pH range: 6.0 - 6.5; dH range: 4 - 18; potamodromous (Ref. 51243 ). Tropical; 24°C - 27°C (Ref. 13371 )

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: Chad, Niger, Volta, Gambia, Senegal (Ref. 2880 , 81279 ). Outside West Africa this species is found in Nile basin, including Lower Nile, White Nile, Blue Nile and Murchison Nile (Ref. 5331 ) and Lake Mobutu Sese Seko [=Lake Albert] and Omo-Lake Turkana system (Ref. 2880 ).

Length at first maturity / Size / Weight / Age

Maturity: L m   ? , range 22 - ? cm
Max length : 55.0 cm TL male/unsexed; (Ref. 2880 ); max. published weight: 600.00 g (Ref. 3799 ); max. reported age: 7 years (Ref. 2758 )

Short description Morphology | Morphometrics

Anal spines : 0; Anal soft rays : 21 - 26; Vertebrae : 45 - 48. Diagnosis: multicuspid teeth set in two rows and not overlapping the jaws when the mouth is closed; teeth stout, not compressed; eyes without or with weakly developed adipose lids; anal fin with 22-26 rays (Ref. 28714 ). At most 27 gill rakers on lower limb of first gill arch (18-27); 3 unbranched and 18-23 branched anal-fin rays; dorsal-fin origin distinctly behind level of pelvic-fin insertions (Ref. 2880 , 81279 ). Scales small (Ref. 28714 ), 43-51 in lateral line (Ref. 2880 , 81279 ).

Biology     Glossary (e.g. epibenthic)

Omnivorous, stomachs examined contained seeds, zooplankton, insects or fish fry (Ref. 28714 ). Two subspecies: Alestes dentex dentex in the Nile and Alestes dentex sethente (Valenciennes, 1849) in Sudanian basins of West Africa.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Up to 300 eggs are scattered on the bottom. Larvae hatch after about 6 days.

Main reference Upload your references | References | Coordinator | Collaborators

Paugy, D. , 1990. Characidae. p. 195-236. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren et O.R.S.T.O.M., Paris, 384 p. (Ref. 2880 )

IUCN Red List Status (Ref. 130435 )

  Least Concern (LC)  ; Date assessed: 17 June 2019

CITES

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial FAO - Publication: search | FishSource |

More information

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.01148 (0.00528 - 0.02495), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic level (Ref. 69278 ):  2.9   ±0.37 se; based on food items. Resilience (Ref. 120179 ):  Medium, minimum population doubling time 1.4 - 4.4 years (tmax=7; tm=2; K=0.43-.075). Fishing Vulnerability (Ref. 59153 ):  Low to moderate vulnerability (31 of 100). Price category (Ref. 80766 ):   Unknown . Nutrients (Ref. 124155 ):  Calcium = 96.6 [36.9, 226.5] mg/100g; Iron = 1.87 [0.93, 4.50] mg/100g; Protein = 19.1 [17.1, 21.4] %; Omega3 = 0.469 [0.182, 1.290] g/100g; Selenium = 56.3 [23.4, 146.4] μg/100g; VitaminA = 25.4 [9.0, 69.1] μg/100g; Zinc = 1.74 [1.21, 2.54] mg/100g (wet weight);

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Updated: 2024-05-23 05:44:00 gmt
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