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> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Mormyrus: Greek, mormyros = a fish (Sparus sp) (Ref. 45335).
Eponymy: Dr Francisco José Maria de Lacerda (1753–1798) was a Portuguese explorer born in São Paulo, Brazil. [...] (Ref. 128868), visit book page.
More on author: Castelnau.

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

; süßwasser demersal. Tropical; 11°S - 21°S

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Punkt Karte | Einführungen | Faunafri

Africa: Cunene (Ref. 13337, 52193, 120641), Cuvelai (Ref. 120641), Okavango, (upper) Zambezi (Ref. 52193, 120641) and Kafue systems (Ref. 52193).

Size / Gewicht / Alter

Geschlechtsreife: L_m ? range ? - ? cm
Max length : 50.0 cm TL Männchen/unbestimmt; (Ref. 52193); max. veröff. Gewicht: 2.0 kg (Ref. 52193)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 62 - 68; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 18 - 21. Diagnosis: dorsal fin greater than twice length of anal fin; dorsal origin nearer tip of snout than caudal fin base; snout 3-3.2 times in head length; caudal peduncle more than 4 times in standard length (Ref. 52193).
Body shape (shape guide): fusiform / normal.

Prefers quiet stretches of river channels, deep pools and floodplain lagoons with aquatic vegetation; may form small shoals; feeds mainly on insect larvae, shrimps, small snails and small fish (Ref. 52193). Known to move up tributaries when they come down in spate and may breed in newly inundated areas (Ref. 13337). Spawns during the rainy season; females carry up to 7,000 eggs; caught by subsistence fishermen and anglers (Ref. 7248, 52193).

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

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Gosse, J.-P., 1984. Mormyridae. p. 63-122. 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. 3203)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

nicht bedroht (LC) ; Date assessed: 01 March 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: kommerziell; Sportfisch: ja

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01096 (0.00565 - 0.02129), b=2.84 (2.68 - 3.00), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.7 ±0.61 se; based on food items.

Generation time: 1.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (K=0.8).

Fishing Vulnerability (Ref. 59153): Low vulnerability (23 of 100). 🛈

Preiskategorie (Ref. 80766): Unknown.

Mormyrus lacerda Castelnau, 1861