Country Species Summary

Acestrorhynchus falcatus (Bloch, 1794)
Family:	Acestrorhynchidae (Smallscale pike characins)	picture (Acfal_u1.jpg) by IBAMA
Order:	Characiformes (characins)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:
Max. size:	27.2 cm SL (male/unsexed; Ref. 35687)
Environment:	benthopelagic
Climate:	tropical
Global Importance:	fisheries: minor commercial
Resilience:
Distribution:	South America: Amazon and Orinoco River basins and rivers of Guyana, Suriname and French Guiana.
Diagnosis:	Dorsal spines (total): 2-2; Dorsal soft rays (total): 9-9; Anal spines: 3-5; Anal soft rays: 21-27. Possesses a humeral spot shaped as an oval or inverted teardrop, occupying not less than a quarter of the height of the body; caudal peduncle with a black spot covering between one third and almost the totality of its depth (Ref. 52916).
Biology:	Attains a length of around 20 cm. As indicated by its dentition and body form, it is a formidable predator which feeds exclusively on fish. Ubiquitous species but is frequently found throughout the length of waters with moderate flow. Reproduction begins with the onset of the rainy season (Ref. 12225)
Threatened:	Not Evaluated, see IUCN Red List , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Menezes, N.A.. 2003. (Ref. 38248)
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Venezuela country information
Common names:	[ No common name ]	Ref:
Status:	native	Ref: Planquette, P., P. Keith and P.-Y. Le Bail, 1996
Salinity:	freshwater
Regulations:	no regulations	Ref:
Uses:	no uses
Comments:	Restricted to black or clear water drainages; common in Rio Negro-Casiquiare drainages, including the Pasimoni, Siapa and Emoni rivers, and black water tributaries of the upper Orinoco (Ref. 52916). Further north, this species is present in Ventuari drainages; to the east, common in Río Cuyuni drainage, and the northern distribution limit is Río Morichal Largo, a relatively isolated, clear-water drainage that flows into the Orinoco delta (Ref. 52916). Sympatric with Acestrorhynchus microlepis in southern Venezuela and the Guiana shield, but appears to be absent from the western and central llanos, presumably because of intolerance of prevalent white-water conditions (Ref. 52916). Also Ref. 12225.
Country Information:	www.cia.gov/cia/publications/factbook/geos/ve.html
Occurrences:	Occurrences Point map
Main Ref:	López-Fernández, H. and K.O. Winemiller, 2003
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Modified: Torres, Armi G.

Entered: Sa-a, Pascualita

CGNET - US

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

	Ref.:		Glossary
		(e.g. 9948)		(e.g. cephalopods)
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