Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Polypteriformes (Bichirs) > Polypteridae (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335); delhezi: Named after M. Delhez, collector of the first specimen of Polypterus delhezi (Ref. 1877).
More on author: Boulenger.

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

; acqua dolce demersale. Tropical; 26°C - 28°C (Ref. 2060)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Africa: middle Congo River basin (Ref. 3188) in Democratic Republic of the Congo and Republic of Congo. Reports from the Shari (Chad basin)(Ref. 1878, 3047, 3049) unconfirmed in Ref. 81263.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 44.0 cm TL maschio/sesso non determinato; (Ref. 42908)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 10 - 13; Spine anali: 0; Raggi anali molli: 11 - 14. Subcylindrical body (Ref. 42908). Upper and lower jaws reaching to the same level, or the lower jaw is a little shorter (Ref. 42873, Ref. 42901, Ref. 42908). Number of dorsal finlets: 10-13 (Ref. 42908, Ref. 51884). Pectoral fin not reaching dorsal fin origin (Ref. 41588). Ganoid scales (Ref. 42908): 52-58 lateral line scales, 36-40 scales around body, 12-17 predorsal scales (Ref. 41588, Ref. 42848, Ref. 42908, Ref. 51884). Dorsal side gray-olive colored, with 7 to 8 black transversal bars; ventral side yellowish, lighter on ventral side of head (Ref. 41580; Ref. 44841). Spots are forming a black line between the lips and suboperculum (Ref. 41580). Fins yellow with brown or black spots (Ref. 41580).

Facultative air-breathing (Ref. 126274); This carnivorous fish lives in streams, lakes and zones of flood (Ref. 41580). Reproduction and spawning occurs during the rainy season (Ref. 41580).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Reproduction occurs during the rainy season (Ref. 41580).

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: pesca di sussistenza; Acquario: Acquari pubblici

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
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Ecology
Ecologia

Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
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Life cycle
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Egg(s)
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Dinamica popolazioni larvali

Distribution
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Aree FAO
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Anatomy
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Physiology
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Visual pigment(s)
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Genetics
Genetica
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Human related
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Profili di acquacoltura
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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=0.00457 (0.00195 - 0.01073), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.25 se; based on food items.

Resilienza (Ref. 120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Fec=2,350; tmax likely > 15 years).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (34 of 100).

Price category (Ref. 80766): Unknown.

Polypterus delhezi Boulenger, 1899