Teleostei (teleosts) >
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
Ecology
Freshwater; demersal; potamodromous (Ref. 51243). Tropical; 9°S - 15°S
Africa: Endemic to Lake Malawi.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 47.0 cm TL male/unsexed; (Ref. 2801)
Caught in ringnets. Also caught by means of the angling method (Ref. 4967). Occurs in shallow water over sandy plains, but can also be seen in open water. A hunting predator which chases Engraulicypris sardella (Ref. 5595).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00304 - 0.01503), b=3.04 (2.85 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
Nutrients (Ref.
124155): Calcium = 194 [118, 399] mg/100g; Iron = 2.11 [1.26, 3.67] mg/100g; Protein = 17.8 [16.8, 18.7] %; Omega3 = 0.463 [0.193, 1.137] g/100g; Selenium = 66.4 [28.3, 146.3] μg/100g; VitaminA = 67.2 [21.1, 219.2] μg/100g; Zinc = 1.69 [1.10, 2.56] mg/100g (wet weight);