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Ageneiosus inermis in Colombia
Manduba

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Ageneiosus inermis   (Linnaeus, 1766)
Family:	Auchenipteridae (Driftwood catfishes) , subfamily: Auchenipterinae			picture (Agine_m0.jpg) by Fundacion Puerto Rastrojo
Order:	Siluriformes  (catfish)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Manduba
Max. size:	59.0 cm TL (male/unsexed; Ref. 40637); max. published weight: 2,500 g (Ref. 6869)
Environment:	pelagic; pH range: 6.5 - 7.80000019073486; dH range: 20
Climate:	tropical; 22 - 24°C
Global Importance:	fisheries: commercial; aquarium: public aquariums
Resilience:	Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2-4, Fec>1000)
Distribution:	South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Suriname, and Venezuela.
Diagnosis:	Anal soft rays: 34-40; Vertebrae: 46-51. Body naked and elongated. Head is pointed and depressed at the top. Mouth is big and wide. The lateral eyes are situated along the level of the mouth, ensuring a vision above and below. Exhibits sexual dimorphism, like A. dentatus. The first ray of the dorsal fin is very long and has pointed spines (Ref. 35381).
Biology:	Prefers rivers in overgrown backwaters where the current is not too strong. Feeds on fish and crustaceans. Its flesh is esteemed for its very fine flavor. Is reported to be nocturnal. Frequently captured with nets, the males are difficult to release from the nets because of its strong dorsal spine bordered with denticles (Ref. 27188). During reproduction, the mandibular barbels and dorsal spine of the male change, and a copulatory organ appears at the anterior level of the anal fin. Fertilization is internal, the female being capable of keeping the spermatozoids inserted in the epithelium of her genital tract (Ref. 35381)
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:	Ferraris, Jr., Carl J.
Main Ref:	Ferraris, C.J. Jr.. 2003. (Ref. 37098)
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Colombia country information
Common names:	[ No common name ]		Ref:
Status:	native		Ref:
Salinity:	freshwater
Regulations:	no regulations		Ref:
Uses:	no uses
Country Information:	www.cia.gov/cia/publications/factbook/geos/co.html
Occurrences:	Occurrences    Point map
Main Ref:	Ferraris, C.J. Jr., 2003
Update

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 | Recipes | Scirus | Tree of Life |   Neodat | Zoological Record
	Note: use the Back button of your browser to return to FishBase.
	Checked:  Ferraris, Jr., Carl J.	Modified:  Garilao, Cristina V.	Entered:  Garilao, Cristina V.

	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