Brycinus nurse, Nurse tetra : fisheries, aquarium

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Brycinus nurse (Rüppell, 1832)

Nurse tetra
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Brycinus nurse
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Alestidae (African tetras)
Etymology: Brycinus: Greek, ebrykon, brykomai = to bite, to gnaw (Ref. 45335);  nurse: rüppellii.
More on author: Rüppell.

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

; süßwasser pelagisch; pH range: 6.0 - 7.8; dH range: ? - 30; potamodrom (Ref. 51243). Tropical; 23°C - 27°C (Ref. 2060)

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

Africa: widely distributed in West Africa (Ref. 2880, 81279). In Lower Guinea present in Cross and Mémé rivers (Ref. 80279). Also in Chad basin (Ref. 367, 81279) and Nile River (Ref. 28714, 31439, 58460) up to Lake Albert (Ref. 4903, 42019).

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 8.9, range 22 - ? cm
Max length : 25.0 cm TL Männchen/unbestimmt; (Ref. 3799); max. veröff. Gewicht: 200.00 g (Ref. 3799)

Kurzbeschreibung Morphologie | Morphometrie

Afterflossenstacheln 0; Afterflossenweichstrahlen: 13 - 18. Diagnosis: fronto-parietal fontanel absent in adults, sometimes pore-like in juveniles, disappearing with growth; dorsal fin origin at about same level as pelvic fin insertion; sexual dimorphism affecting anal fin shape; 24-34 lateral line scales; 5.5 scales between lateral line and dorsal fin; 10-15 anal fin branched rays; 14-20 gill rakers on lower limb of first gill arch; 8 teeth in outer premaxillary row (Ref. 2880, 80290, 81279). Snout short, more than 3x head length; head length/snout length 3.6-4.3; 10-11.5 predorsal scales; flanks without lateral band; adults medium-sized (Ref. 80290).

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

Inhabits rivers, lakes, irrigation canals and fringing vegetation; feeds on zooplankton, Caridina, insects, snails and vegetation (Ref. 28714). Dwarf populations are described in lake basins: Lake Turkana, B. n. nana Pellegrin, 1935 and Lake Chad, B. n. dageti Blache and Miton, 1960 (see Ref. 2880).

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

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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 Rote Liste Status (Ref. 125652)

  nicht bedroht (LC) ; Date assessed: 16 April 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: weniger kommerziell; Aquarium: Kommerziell
FAO - Publication: search | FishSource |

Mehr Information

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Vorkommen
Einführungen
Stocks
Ökologie
Nahrung
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Nahrungsaufnahme
Nahrungsmenge
Namen
Synonyme
Metabolismus
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Ökotoxikologie
Fortpflanzung
Geschlechtsreife
Ablaichen
Spawning aggregation
Fecundity
Eier
Eientwicklung
Referenzen
Aquakultur
Aquakultur Profil
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Genetik
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Stamps, Coins Misc.
Laute
Ciguatera
Geschwindigkeit
Schwimmstil
Kiemenoberfläche
Otoliths
Gehirngröße
Sehfähigkeit

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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 | 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=0.01202 (0.00930 - 0.01555), b=2.98 (2.93 - 3.03), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  2.5   ±0.2 se; based on diet studies.
Widerstandsfähigkeit (Ref. 120179):  hoch, Verdopplung der Population dauert weniger als 15 Monate. (K=0.41-0.92; tm=1; Fec < 1,000).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (29 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .
Preiskategorie (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 173 [50, 395] mg/100g ; Iron = 2.34 [1.36, 4.45] mg/100g ; Protein = 18.3 [16.3, 20.6] % ; Omega3 = 0.381 [0.165, 0.850] g/100g ; Selenium = 44.6 [20.1, 98.5] μg/100g ; VitaminA = 24.1 [9.1, 61.7] μg/100g ; Zinc = 2.46 [1.72, 3.48] mg/100g (wet weight);