Lithodoras dorsalis (Valenciennes, 1840)
Rock-bacu
photo by IBAMA

 Family:  Doradidae (Thorny catfishes)
 Max. size:  100 cm TL (male/unsexed); max.weight: 15 kg
 Environment:  demersal, potamodromous
 Distribution:  South America: Amazon River basin and estuary near Cayenne, French Guiana.
 Diagnosis:  Dorsal spines (total): 1-1; Dorsal soft rays (total): 6-6; Anal soft rays: 13-14. Body elongated, without scales, almost covered with bony plaque, ventrally flattened in adults. Terminal mouth has three pairs of barbels. Lower jaw is shorter than the upper jaw. Eyes small (Ref. 35381).
 Biology:  Feeds on fruits when the forests are flooded and on the blades of macrophytes. Acts as seed dispersal agent (Ref. 6868). Reproduction occurs once a year and juveniles are often seen in large numbers in the estuary of the Amazon, in the region of Mario (Ref. 35381).
 IUCN Red List Status: Not Evaluated  (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Froese, Rainer - 12.12.96
 Modified by: Torres, Armi G. - 26.08.10

Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.


Page created by Jen, 05.08.02, php script by kbanasihan 06/09/2010 ,  last modified by dsantos, 20/08/10