Malawi country information

Common names: Lake trout, Sanjika
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Thumbi West Island and Zimbawe Rock (Ref. 55909). Also Ref. 5595.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mi.html
National Fisheries Authority: http://isp.msu.edu/AfricanStudies/Plea/mfri.htm
Occurrences: Occurrences Point map
Main Ref: Snoeks, J., 2004
National Database:

Common names from other countries

Lake trout, Sanjika-norjasdaanio, 小头马口波鱼, ... more

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Danionidae (Danios) > Chedrinae
Etymology: Opsaridium: Greek, opsarion, -ou = a little portion fish (Ref. 45335).
More on author: Günther.

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

; agua dulce demersal; potamodromo (Ref. 51243). Tropical; 9°S - 15°S

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Africa: Lake Malawi (Nyassa) and upper Shire.

Length at first maturity / Tamaño / Peso / Age

Maturity: L_m 23.7 range ? - ? cm
Max length : 34.0 cm TL macho / no sexado; (Ref. 2801)

Inhabits lake, but some migrate to rivers to breed (Ref. 4967). Also caught using dip nets. Found in shallow water over sandy bottoms. Feeds on usipa, Engraulicypris sardella (Ref. 5595).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Lévêque, C. and J. Daget, 1984. Cyprinidae. p. 217-342. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 2801)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 22 May 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: escaso valor comercial; Acuario: Comercial

FAO(Publication : search) | FishSource |

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Ocurrencias, apariciones
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Ecología
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componentes alimenticios
consumo de alimento
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Metabolismo
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Madurez
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Huevos
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Age/Size
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Length-weight
Length-length
Length-frequencies
Morfometría
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heritabilidad
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Datos específicos | Nombres comunes | Photos

Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00708 (0.00316 - 0.01588), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 3.4 ±0.4 se; based on size and trophs of closest relatives

Resiliencia (Ref. 120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (24 of 100).

Price category (Ref. 80766): Unknown.

Opsaridium microcephalum (Günther, 1864)