Hydrocynus vittatus, Tiger fish : fisheries, gamefish

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Hydrocynus vittatus Castelnau, 1861

Tiger fish
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Hydrocynus vittatus
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Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (strålfeniga fiskar) > Characiformes (Characins) > Alestidae (African tetras)
Etymology: Hydrocynus: Greek, hydr = water + Greek, kyon = dog (Ref. 45335).  More on author: Castelnau.

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

; stvatten bottenlevande; flodvandrande (Ref. 51243).   Tropical; 22°C - 28°C (Ref. 12468)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

West-Africa: Niger, Bénoué, Ouémé, Senegal (Ref. 2880, 5331, 7248, 81279), Ouémé (unconfirmed, Ref. 81279), Chad (Ref. 2880, 5331, 81279). Also found in the Volta (Ref. 5331, 81279) and Mono rivers (Ref. 81279). Lower Guinea: Cross and Sanaga basins (Ref. 80290). Widespread throughout the Congo River basin (Ref. 4910, 41585, 41594, 42510, 45616, 52070, 89725, 106290). Also reported from Nile, Omo, Zambezi, Limpopo, Rovuma, Shire, Rufiji, Ruaha, Lake Tanganyika, Lake Rukwa (Ref. 2880, 80290), Lake Albert (Ref. 4903) and Lake Kariba (Ref. 27602), Malagarazi, Okavango and lower reaches of coastal systems south to the Pongolo (Ref. 7248).

Length at first maturity / Size / Vikt / Age

Maturity: Lm 39.8  range ? - ? cm
Max length : 105 cm FL hane/ej könsbestämd; (Ref. 40637); 74.0 cm FL (female); publicerad maxvikt: 28.0 kg (Ref. 40637); rapporterad maxålder: 8 år (Ref. 2754)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 0; Mjukstrålar i ryggfenan (totalt): 10; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 15. Diagnosis: 2 scale rows between lateral line and scaly process at pelvic-fin bases; eye < 70% of interorbital space (Ref. 2880, 81279). Dorsal-fin origin at about same level as pelvic-fin insertions; tips of adipose and dorsal fins black; forked edge of caudal fin black (Ref. 2880, 80290, 81279).

Biologi     Ordlista (t.ex. epibenthic)

Prefers warm, well-oxygenated water, mainly larger rivers and lakes; all but the largest form roving schools of like-sized fish; aptly described as fierce and voracious; feeds on whatever prey is most abundant but Brycinus, Micralestes, Barbus, and Limnothrissa are favored (Ref. 7248). Useful food fish in some areas (Ref. 4967).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Paugy, D. and S.A. Schaefer, 2007. Alestidae. p. 347-411. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) Poissons d'eaux douces et saumâtres de basse Guinée, ouest de l'Afrique centrale/The fresh and brackish water fishes of Lower Guinea, west-central Africa. Vol. 1. Coll. Faune et Flore tropicales 42. Istitut de recherche pour le développement, Paris, France, Muséum nationale d'histoire naturelle, Paris, France and Musée royale de l'Afrique centrale, Tervuren, Belgique. 800 p. (Ref. 80290)

IUCN Red List Status (Ref. 120744)

  Least Concern (LC) ; Date assessed: 01 May 2009

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fiskeri: kommersiell; sportfisk: ja
FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00859 - 0.01399), b=3.02 (2.95 - 3.09), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trofisk nivå (Ref. 69278):  4.4   ±0.0 se; Based on diet studies.
Generation time: 3.7 (3.0 - 5.0) years. Estimated as median LN(3)/K based on 14 growth studies.
Resiliens (Ref. 120179):  Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.20-0.30; tmax=11).
Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100) .
Price category (Ref. 80766):   Unknown.