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Micropanchax johnstoni (Günther, 1894)

Johnston's topminnow
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Micropanchax johnstoni
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Botswana country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Found in the Chobe River and Okovango swamps in northwestern Botswana (Ref. 3788, 47311). Known from the Okavango Delta in the Boteti River, Thamalakane River, Nxaraga Lagoon, Xakanixa Lagoon, Magwexana Lagoon, perennial swamp rain pools, mainstream channel and Dungu Lagoon (Ref. 27501). Also Ref. 27139.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/bc.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Merron, G.S. and M.N. Bruton, 1995
National Database:

Common names from other countries

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

> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Procatopodidae (African lampeyes) > Procatopodinae
Etymology:   More on author: Günther.

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

; süßwasser benthopelagisch; pH range: 6.5 - 7.2; standorttreu.   Tropical; 18°C - 26°C (Ref. 2060); 10°S - 28°S

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

Africa: widely distributed in southern Africa; present in various lakes and river drainages in Malawi, Tanzania, Mozambique, Zambia, Angola, Namibia, Botswana, Zimbabwe, South Africa and southeastern Democratic Republic of the Congo (Ref. 47311, 52193).

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 8.5 cm TL Männchen/unbestimmt; (Ref. 31267); common length : 4.5 cm TL Männchen/unbestimmt; (Ref. 27139)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 6 - 8; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 11 - 14.

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

Found near the surface and among weeds in which it seeks refuge and food (Ref. 5595). Prefers standing or gently flowing water as in river backwaters, floodplains (Ref. 7248), swamps (Ref. 7248, 47311), creeks and pools (Ref. 47311). Usually found in small shoals near the surface, among fringing vegetation; usually abundant when present (Ref. 47311, 52193). It feeds on small invertebrates like mosquito larvae and daphnia (Ref. 52193). A serial spawner, laying eggs which attach to vegetation (Ref. 52193). When food is abundant, breeding occurs daily over an extended period (year-round where conditions are suitable) (Ref. 7248, 52193). 6 cm max TL (Ref. 3788). Not a seasonal killifish. Is difficult to maintain in aquarium (Ref. 27139).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Wildekamp, R.H., R. Romand and J.J. Scheel, 1986. Cyprinodontidae. p. 165-276. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC; Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3788)

IUCN Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 13 November 2017

CITES (Ref. 128078)

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

Trophic ecology
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Räuber
Ecology
Ökologie
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Population dynamics
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Length-weight rel.
Length-length rel.
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00163 - 0.01168), b=3.13 (2.89 - 3.37), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.2   ±0.40 se; based on food items.
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Preiskategorie (Ref. 80766):   Unknown.