Micralestes acutidens, Sharptooth tetra : aquarium, bait

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Micralestes acutidens (Peters, 1852)

Sharptooth tetra
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Micralestes acutidens
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Alestidae (African tetras)
Etymology: Micralestes: Greek, mikros = small + Greek,lestes = thief (Ref. 45335).
More on author: Peters.

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

; süßwasser pelagisch; pH range: 6.2 - 8.0; dH range: ? - 25; potamodrom (Ref. 51243). Tropical; 22°C - 26°C (Ref. 1672)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Africa: Congo, Okavango, Zambezi (Ref. 7248, 120641), Kunene and east coast rivers south to the Pongolo (Ref. 7248), Cross and Sanaga Rivers (Ref. 80290) and Tanzania (Ref. 4967). Nilo-Sudan and West-African reports of M. acutidens (e.g. Ref. 367, 51193) are misidentifications of M. elongatus (see DVD version of Ref. 81279; see also Ref. 2880).

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 3.4  range ? - ? cm
Max length : 9.0 cm SL Männchen/unbestimmt; (Ref. 4967); max. veröff. Gewicht: 2.00 g (Ref. 3799); max. veröff. Alter: 3.00 Jahre (Ref. 7248)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 0; Rückenflossenweichstrahlen (insgesamt): 10-11; Afterflossenstacheln 0; Afterflossenweichstrahlen: 17 - 20. Diagnosis: inner dentary teeth multicuspid; 14-17 anal fin branched rays; dorsal fin apical tip black; scales of flank without melanophores concentrated along basal margin, pigment diffuse or absent (Ref. 80290).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Shoals in clear, flowing or standing, open water; appears to co-exist with the tigerfish Hydrocynus forskalii in open water although it is heavily preyed upon by that predator, particularly those shoals of tigerfish ranging up to 45 cm in length (Ref. 13337). Omnivorous, often feeding from surface waters on winged insects; also takes insect larvae, crustaceans and eggs and fry of other fish (Ref. 13337). Matures after a year; partial spawner of moderate fecundity, with usually fewer than 700 eggs per female; shoals migrate upstream after first summer rains; breeds throughout the summer months; used as forage fish and as bait for tigerfish and pike (Ref. 7248).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Skelton, P.H., 1993. A complete guide to the freshwater fishes of southern Africa. Southern Book Publishers. 388 p. (Ref. 7248)

IUCN Rote Liste Status (Ref. 125652)

  nicht bedroht (LC) ; Date assessed: 30 April 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: nicht kommerziell; Aquarium: Kommerziell; Köder: usually
FAO - Publication: search | FishSource |

Mehr Information

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Eier
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Stamps, Coins Misc.
Laute
Ciguatera
Geschwindigkeit
Schwimmstil
Kiemenoberfläche
Otoliths
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Internet Quellen

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | Öffentliche Aquarien | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00675 - 0.02242), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref. 93245).
Trophic level (Ref. 69278):  2.9   ±0.33 se; based on food items.
Generation time: 1.8 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Widerstandsfähigkeit (Ref. 120179):  hoch, Verdopplung der Population dauert weniger als 15 Monate. (K=0.63; tmax=3).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (23 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .