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Protopterus aethiopicus  Heckel, 1851

Marbled lungfish
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Protopterus aethiopicus
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Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Sarcoptérygiens (poissons à nageoires lobées) (lobe-finned fishes) > Lepidosireniformes (South American and African lungfishes) > Protopteridae (African lungfishes)
Etymology: Protopterus: Greek, pro = first, in front of + Greek, pteron = wing, fin (Ref. 45335);  aethiopicus: Named after Is. Mesmaekers, commander in Boma (Ref. 40587).

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

; eau douce démersal; profondeur 0 - 60 m (Ref. 34291), usually 0 - 20 m (Ref. 34291).   Tropical; 25°C - 30°C (Ref. 2059)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Africa: Congo basin (Protopterus aethiopicus congicus and P. a. mesmaekersi), Nile basin and Lakes Albert, Edward, Victoria, Nabugabo, Tanganyika, Kyoga, No (Ref. 3498) and Turkana (Ref. 52331) (P. a. aethiopicus).

Length at first maturity / Taille / Poids / Âge

Maturity: Lm ?, range 70 - 76 cm
Max length : 200 cm TL mâle / non sexé; (Ref. 34290); common length : 130 cm TL mâle / non sexé; (Ref. 34290); poids max. publié: 17.0 kg (Ref. 13302)

Description synthétique Morphologie | Morphométrie

Smooth, slimy, cylindrical body with deeply embedded scales (Ref. 28714). Tail pointed and confluent with the long dorsal and anal fins; dorsal fin originating at an equal distance from the eye and the vent, or nearer to the latter; pectoral and pelvic fins slender and filamentous (Ref. 34290). 55-70 scales in a longitudinal series from immediately behind the head to above the vent; 40-50 scales around body (Ref. 4903, Ref. 45485). Ribs: 37-40 pairs (Ref. 4903). The dentition consisting of upper and lower tooth-plates in the form of sharp cutting ridges (Ref. 34290). Young fishes with true external gills, but usually absent in specimens greater than 15 cm TL (Ref. 34290). Dark slate-grey above, yellowish-grey or pinkish below; often with numerous dark spots or flecks on the fins and body (some specimens bright yellow ventrally); sensory canals on head and body are outlined in black (Ref. 34290).

Biologie     Glossaire (ex. epibenthic)

Adults inhabit river and lake fringes, swamps and floodplains (Ref. 28714). In Lake Victoria, they are found in open lakes and marginal swamps, in Lake Tanganyika basin, they occur only near rivers and deltas (Ref. 4967). Juveniles are found in the matted roots of papyrus (Ref. 34291). Adults are able to live in streams and swamps which are completely dry for long periods of the year (Ref. 45484). They withstand desiccation on floodplains by aestivating in cocoons until the next rains, breathing air by a small passage leading to the outside (Ref. 45484). Mature individuals breed during flood season (Ref. 28714). One or several females spawn in burrows which are dug and cleaned by the male, who later guards the eggs and the young. The principal diet of adults and sub-adults consists of mollusks, but small fishes and insects are also eaten in small quantities; young individuals less than 35 cm TL feed almost wholly on insects (Ref. 34291). Under laboratory conditions it is an obligatory air breather (Ref. 34291), but under certain conditions lungfish in the wild may not be obligate air breathers and the use of aerial respiration may be a function of ecological as well as physiological factors (Ref. 58531).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

The male parent prepares a pit or hole nest. More than one female may spawn in a nest. Once the eggs are laid, the female leaves the nest and does not return. The male then guards the eggs and young for nearly eight weeks. Not only does the male attack any would-be intruders but he constantly aerates the water in the nest (Ref. 4903).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Gosse, J.-P., 1984. Protopteridae. p. 8-17. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). Volume I. ORSTOM, Paris and MRAC, Tervuren. 410 p. (Ref. 3498)

Statut dans la liste rouge de l'IUCN (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless




Utilisations par l'homme

Pêcheries: intérêt commercial mineur
FAO(Publication : search) | FishSource |

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Noms communs
Synonymes
Métabolisme
Prédateurs
Écotoxicologie
Reproduction
Maturité
Frai
Fécondité
Œufs
Développement de l'œuf
Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Fréquences de longueurs
Morphométrie
Morphologie
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Dynamique des populations larvaires
Recrutement
Abondance
Références
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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6602   [Uniqueness, from 0.5 = low to 2.0 = high].
Niveau trophique (Ref. 69278):  4.4   ±0.2 se; Based on diet studies.
Résilience (Ref. 69278):  Faible, temps minimum de doublement de population : 4,5 à 14 années (Assuming tmax > 30; Fec = 468).
Vulnérabilité (Ref. 59153):  High to very high vulnerability (71 of 100) .
Catégorie de prix (Ref. 80766):   Unknown.