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Gnathonemus longibarbis in Rwanda
Longnose stonebasher

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Gnathonemus longibarbis   (Hilgendorf, 1888)
Family:	Mormyridae (Elephantfishes)			picture (Gnlon_u0.jpg) by de Vos, L.
Order:	Osteoglossiformes  (bony tongues)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Longnose stonebasher
Max. size:	36.0 cm SL (male/unsexed; Ref. 4967)
Environment:	demersal; potamodromous ; depth range 27 - 45 m
Climate:	tropical
Global Importance:	fisheries: of no interest
Resilience:	Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 502)
Distribution:	Africa: Lake Victoria, Lake Tanganyika, Victoria Nile (Zambeze?).
Biology:	Occurs in shallow inshore waters over both sandy and rocky bottoms, appearing seasonally over muddy bottoms adjacent to extensive papyrus swamps. Also found in deep water, near rocky islands. Feeds on large libellulid nymphs and other large prey (Ref. 9606). Oviparous (Ref. 205). Migrates up the river to spawn (Ref. 10608)
Threatened:	, (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Gosse, J.-P.. 1984. (Ref. 3203)
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Rwanda country information
Common names:	Cyumbi, Imbaraga, Lake Tanganyika sardine, Longnose stonebasher, Mpumbi		Ref:  De Vos, L., J. Snoeks and D.F.E. Thys van den Audenaerde, 2001
Status:	native		Ref:
Salinity:	freshwater
Regulations:	no regulations		Ref:
Uses:	no uses
Comments:	Known from middle Akagera system.
Country Information:	www.cia.gov/cia/publications/factbook/geos/rw.html
Occurrences:	Occurrences    Point map
Main Ref:	De Vos, L., J. Snoeks and D.F.E. Thys van den Audenaerde, 2001
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More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | E-book | Field guide | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | PubMed | Scirus | Public aquariums | Tree of Life | Zoological Record
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	Entered:  Pablico, Grace Tolentino

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07