More info | Plus d'info | Mais info | Fishwatchers: Add your observation | Attach your web site to this page | FishBase

English | Español | Português | Français | Deutsch | Italiano | Nederlands | Chinese      More languages...

Distichodus rostratus in Guinea-Bissau
Grass-eater

Go to Species Summary

Distichodus rostratus   Günther, 1864
Family:	Distichodontidae ()			picture (Diros_u2.jpg) by JJPhoto
Order:	Characiformes  (characins)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Grass-eater
Max. size:	76.0 cm TL (male/unsexed; Ref. 7094); max. published weight: 6,250 g (Ref. 7094)
Environment:	demersal; potamodromous; pH range: 6.5 - 7.5; dH range: 15
Climate:	tropical; 22 - 28°C
Global Importance:	fisheries: commercial
Resilience:	Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Distribution:	Africa: Senegal to the Chad basin. Absent in coastal basins between Gambia and Sassandra (Côte d'Ivoire) but Ref. 7094 and Ref. 272 report otherwise. Also found in the Nile (Ref. 2936).
Diagnosis:	Dorsal soft rays (total): 21-26; Anal soft rays: 13-16. Body depth 2.7-3.6x, head length 3.3-5.5x SL. Caudal peduncle 0.7-1.1x longer than wide. Rounded snout. Eye diameter 3.3 (juveniles)-7x head length. Scaly caudal with round lobes. Gray body more or less dark. Upper part of dorsal with black lines formed by a series of points on the inter-radial membranes. Juveniles with transverse black irregular bands on the sides; one black spot at extremity of caudal peduncle, one black humeral spot and sometimes one orange humeral spot.
Biology:	Marco-herbivores, feed on submerged plants, Eichornia roots and periphyton (Ref. 28714)
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Teugels, G.G., C. Lévêque, D. Paugy and K. Traoré. 1988. (Ref. 272)
Update | Add

Guinea-Bissau country information
Common names:	[ No common name ]		Ref:
Status:	native		Ref:
Salinity:	freshwater
Uses:	no uses
Comments:	Occurs in Géba River (Ref. 13331).
Country Information:	www.cia.gov/cia/publications/factbook/geos/pu.html
Occurrences:	Occurrences    Point map
Main Ref:	Gosse, J.-P. and E.J. Coenen, 1990
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 | Bio-Quiz | E-book | Field guide | Identification keys | 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 | Zoological Record Fish Forum |
	Note: use the Back button of your browser to return to FishBase.
	Entered:  Palomares, Maria Lourdes D.

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
ThisFishForum      Comments & Corrections      Sign our Guest Book
Back to Search

CGNET - US

Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07