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> Polypteriformes (Bichirs) > Polypteridae (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335); palmas: Named after M. Büttikofer, collector of the type-specimens (Ref. 46277).
More on author: Ayres.

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

; ນ້ຳຈືດ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ; pH range: ? - 7.0; dH range: ? - 10. Tropical; 26°C - 28°C (Ref. 2060); 7°N - 10°S

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Africa: coastal rivers of the Gulf of Guinea, from Guinea Bissau to Liberia and upper Cavally River in Côte d'Ivoire; also in upper Casamance River in Senegal (Ref. 28149, 81263). Reports from the Congo River basin (Ref. 44840, 51193) and Democratic Republic of the Congo (Ref. 4537) probably refer to Polypterus polli, previously a subspecies of Polypterus palmas, and only known from the Congo River basin (Ref. 28149).

ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: L_m ? range ? - ? cm
Max length : 35.3 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 28149)

Short description ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 7 - 10; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ ກຸ່ມປາກະດູກແຂງ ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ ຄີກົ້ນຂອງປາ ສັດທີ່ມີກະດູກສັນຫັຼງ ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 12 - 14; ສັດທີ່ມີກະດູກສັນຫຼັງ: 56 - 59. Diagnosis: Polypterus palmas is distinguished from other species of the genus by the upper jaw longer than lower jaw, pectoral fin not reaching the level of the first dorsal fin ray and 27-32 scales between occiput and first dorsal fin ray (Ref. 2835, 28149, 42908, 81263).

Facultative air-breathing (Ref. 126274)

Life cycle and mating behavior Maturities | ການສືບພັນ | Spawnings | Egg(s) | Fecundities | ຕົວອ່ອນ

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Hanssens, M.M., G.G. Teugels and D.F.E. Thys Van Den Audenaerde, 1995. Subspecies in the Polypterus palmas complex (Brachiopterygii; Polypteridae) from West and Central Africa. Copeia 1995(3):694-705. (Ref. 28149)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 07 June 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Summary page | ຈຸດໃດໜຶ່ງທີ່ສະແດງຂໍ້ມູນ | ຊື່ສາມັນ | Photos

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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).

ຊັ້ນເຂດຮ້ອນ (Ref. 69278): 2.9 ±0.43 se; based on food items.

ຄວາມຢືດຢຸ່ນ (Ref. 120179): ຕຳ່, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 4.5 - 14 ປີ (Fec=5 observed in Aquatium is probably too low; assuming > 10 fecundity (RF)).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (33 of 100).

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Polypterus palmas Ayres, 1850