Polypterus ansorgii Boulenger, 1910

Guinean bichir

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Polypteriformes \| Polypteridae
Synonyms	... more
Common names	Bichir, Snake fish, Kouagna, ... more

You can sponsor this page

Upload your photos and videos
| All pictures | Google image |

Image of Polypterus ansorgii (Guinean bichir)

Picture by Chang, Y.C.

Add your observation in Fish Watcher

No AquaMaps available for this species.

Main reference

Gosse, J.-P. 1990. (Ref. 2835)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 28.0 cm TL male/unsexed; (Ref. 2835)

Environment

Demersal; freshwater

Climate / Range

Tropical

Africa: described from the Corbal River (Corubal) in Guinea Bissau and recently reported in the Niger basin near Kouroussa in Guinea and in lake Kainji and the Ogun River in Nigeria (Ref. 2835).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 1215; Anal spines: 0; Anal soft rays: 12 - 14. Subcylindrical body (Ref. 42908). Upper and lower jaw of equal length (Ref. 2835). Advanced dorsal fin with 12-15 dorsal finlets (Ref. 2835, Ref. 42908, Ref. 51884). Pectoral fin reaching first dorsal spine (Ref. 3032). Ganoid scales (Ref. 42904): 55-62 lateral line scales, 42-46 scales around body, 11-13 predorsal scales (Ref. 2835, Ref. 3032, Ref. 42908). Lateral line scales of adults are notched on the posterior border (Ref. 2756). The color is greenish-black with large black blotches on the flanks (Ref. 3023).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Aquarium: public aquariums


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

Tools
Biogeographic modelling \| E-book \| Field guide \| Identification keys \| Length-frequency wizard \| Life-history tool \| Point map

Special reports
Check for Aquarium maintenance \| Check for Species Fact Sheets \| Check for Aquaculture Fact Sheets

Download XML
Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (25 of 100)	Not marketed/unknown

Entered by Cruz, Tess

Modified by Binohlan, Crispina B.

Back to Search

Fish Forum

Comments & Corrections

Sign our Guest Book

FishBase mirror site : US - CGNET

Page last modified by : elaxamana, 15 July 2009

Custom Search