Country Species Summary

Astyanax aeneus in Belize
Banded tetra

Astyanax aeneus (Günther, 1860)
Family:	Characidae (Characins) , subfamily: Incertae sedis	picture (Asaen_u1.jpg) by Molina, A.
Order:	Characiformes (characins)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Banded tetra
Max. size:	7.5 cm SL (male/unsexed; Ref. 30499); 12 cm SL (female)
Environment:	benthopelagic
Climate:	tropical; 20 - 37°C
Global Importance:
Resilience:	High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Distribution:	Central America: lower Rio Papaloapan and Colima, Mexico south to some places in Central America (Ref. 30499), extending to the Rio Cocle del Norte and Rio Tabasara in Panama (Ref. 36880).
Diagnosis:	Differs from A. nasutus and A. orthodus by its distinct humeral blotch and intermediate body depth. Sides and belly silvery over pearl white merging to a greenish brown back; in preserved specimens, a gray band runs from the humeral mark to the caudal peduncle which has a jet black rhomboidal mark extending to the tip of the middle caudal rays; transparent fins with minimal dark pigment; usually first rays of anal and sometimes dorsal and caudal fins with red or yellow pigment (Ref. 36880).
Biology:	Inhabits all types of rivers and streams, from swift water to swamps and stagnant pools (Ref. 36880). Tolerates brackish water at sea level to small mountain brooks at 1000 m elevation (Ref. 36880). Forms schools over any type of substrate (Ref. 36880). Feeds on algae, seeds, leaves, aquatic and terrestrial insects and fish fry of any species (Ref. 36880). Spawns during most of the year at some sites or seasonally in other places (Ref. 36880)
Threatened:	Not Evaluated, see IUCN Red List , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Bussing, W.A.. 1998. (Ref. 36880)
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Belize country information
Common names:	Central tetra, Billum	Ref: Greenfield, D.W. and J.E. Thomerson, 1997
Status:	native	Ref:
Salinity:	freshwater
Abundance:	abundant (always seen in some numbers)	Ref: Greenfield, D.W. and J.E. Thomerson, 1997
Regulations:	no regulations	Ref:
Uses:	no uses
Comments:	Widespread, almost ubiquitous. Found in mangrove areas near the coast up to streams of Mountain Pine Ridge (Ref. 30499).
National Checklist:	Belize Biodiversity Information System - Fish
Country Information:	www.cia.gov/cia/publications/factbook/geos/bh.html
National Fisheries Authority:	www.caricom-fisheries.com/belize-fisheries
Occurrences:	Occurrences Point map
Main Ref:	Greenfield, D.W. and J.E. Thomerson, 1997
National Database:	Belize Biodiversity Information System
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Entered: Torres, Armi G.

CGNET - US

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

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		(e.g. 9948)		(e.g. cephalopods)
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