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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Hippopotamyrus: Greek, ippos = horse + Greek,potamos = river + greek, myros = the male of morey eel (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser demersal. Tropical; 22°C - 24°C (Ref. 12468)
Africa: in the large Sahelo-Sudanese basins Nile, Niger, Benue, Chad and Volta (Ref. 2915, 28714, 81274); also Mono River in Togo, Sassandra River in Ivory Coast and in Ghana, Burkina Faso, NIgeria and Cameroon (Ref. 3203, 2915, 81274).
Size / Gewicht / Alter
Maturity: Lm ?  range ? - ? cm
Max length : 30.5 cm SL Männchen/unbestimmt; (Ref. 3203); max. veröff. Gewicht: 100.00 g (Ref. 3799)
Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 29 - 39; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 30 - 36. Concave back profile. Dorsal and anal fins on same level. Body height 3.2-4.8 x SL. Chin less developed than H. paugyi. Caudal peduncle height 3.2-4.9 x of its length. Nasal openings forming 45° angle with body axis.
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Bigorne, R., 1990. Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915)
IUCN Rote Liste Status (Ref. 130435: Version 2024-2)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell
Tools
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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=0.01175 (0.00662 - 0.02084), b=2.86 (2.71 - 3.01), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).