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> Polypteriformes (Bichirs) > Polypteridae (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335).
More on author: Boulenger.

Issue
Type locality: Monsembe (Haut Congo).

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

; Γλυκού νερού βενθικό(ς). Tropical; 26°C - 28°C (Ref. 1672)

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Africa: Congo River basin in Cameroon, Democratic Republic of the Congo (Ref. 3188, Angola (Ref. 3188, 120641) and Republic of Congo (Ref. 45477). Also reported from the Lake Rukwa drainage (Ref. 27292) and Lake Tanganyika basin (Ref. 4537, 36901, 54847).

Μέγεθος / Βάρος / Age

Maturity: L_m ? range ? - ? cm
Max length : 60.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 3188)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 9 - 11; Εδρικές άκανθες: 14 - 15. Subcylindrical body (Ref. 27292, Ref. 36901). Upper and lower jaw of equal length (Ref. 36901, Ref. 42907). Number of dorsal finlets: 9-11 (Ref. 42908, Ref. 51884). Dorsal fin origin well behind pectoral fin (Ref. 4967, Ref. 42873). Ganoid scales (Ref. 27292, Ref. 42904): 58-65 lateral line scales, 38-44 scales around body, 22-27 predorsal scales (Ref. 2970, Ref. 11970, Ref. 42907, Ref. 42908). Dorsal side grey-brown colored, marbled with clear whitish spots (Ref. 11970), the belly is white to yellowish (Ref. 27292). Head finely reticulated (Ref. 42873, Ref. 42901). Fins with white spots alternating with dark spots, forming a continuous bar (Ref. 11970).

Facultative air-breathing (Ref. 126274); Inhabits calm waters of swamps and rivers (Ref. 11970). It feeds on worms and insect larvae when young, but takes larger food, mainly fish, when adult (Ref. 27292). It mainly hunts at night (Ref. 27292). In general they are more or less solitary fish and do not form schools (Ref. 27292).

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Male starts with the courtship and is the active partner (Ref. 1672). The male makes from the anal fin a sort of cup and the female lays the eggs in this cup (Ref. 1672). The male then spreads the eggs so that they attach, e.g., to plants.

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Gosse, J.-P., 1984. Polypteridae. p. 18-29. 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. 3188)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 01 May 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

αλιεία: χωρίς ενδιαφέρον; Ενυδρείο: Δημόσια ενυδρεία

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Διαδικτυακές πηγές

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).

Τροφικό Επίπεδο (Ref. 69278): 3.7 ±0.60 se; based on food items.

Ελαστικότητα (Ref. 120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Fec=200-300; tmax likely >= 20).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (44 of 100).

Polypterus ornatipinnis Boulenger, 1902