Country Species Summary

Apareiodon gransabana Starnes & Schindler, 1993
Family:	Parodontidae (Scrapetooths)	picture () by ( not available )
Order:	Characiformes (characins)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:
Max. size:	9.2 cm SL (male/unsexed; Ref. 10296)
Environment:	benthopelagic; pH range: 4.90000009536743 - 7; dH range: 18
Climate:	tropical; 20 - 25°C
Global Importance:
Resilience:	Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Distribution:	South America: Orinoco River basin and the coastal basins of French Guiana, Guyana and Suriname.
Diagnosis:	Dorsal soft rays (total): 11-12; Anal soft rays: 9-10; Vertebrae: 39-41. It differs from all congeners by possessing two ventrolateral rows of dark spots aligned along the horizontal lines where first and second and second and third scale rows below lateral-line scale row overlap (one or both rows of spots coalesce into narrow zigzag stripes in most specimens, upper row occasionally poorly developed); by possessing patches of dark pigment extending along the anal fin base and on the ventral midline of the caudal peduncle to the caudal fin base. Another distinguishing feature is the insertion of the first pterygiophore of the dorsal fin after vertebra 13 or 14 vs. 10 to 12 (rarely 13) in other species (reflected in a mean predorsal distance exceeding 0.50 of SL in A. gransabana vs. less than 0.50 in other species); distinguished from all congeners except A. guyanensis by the usual presence of 5 (occasionally 6) teeth (not counting replacement teeth) on each premaxillary bone vs. 4 in other species. Teeth of A. gransabana are gently convex with about 10-12 cusps, whereas those of A. guyanensis are spade-shaped with a highly convex margin and about 14-15 cusps, further differing from all congeners by the presence of 10-11 vertical scale rows vs. usually 9. A. gransabana has a notably more laterally compressed, parallel-sided body than its characteristically terete congeners (body width/dorsal-fin origin to pelvic-fin insertion distance less than 0.60 vs. usually 0.70 or more); and the isthmus is approximately one-half as wide; the caudal peduncle is more constricted (least depth/dorsal origin to pelvic-fin base distance averages 0.43 versus 0.450-0.570 or more in other species with ranges rarely overlapping).
Biology:	Occurs in small streams mostly less than 10 m width in rocky areas with moderate to strong current. Schools of 20-40 individuals were found to swim in strong current near the substratum with a head-downward orientation. In reaches with moderate current, these fish usually swam higher above the substratum, and with more horizontal body orientation. Attains at least 9.2 cm SL
Threatened:	Not Evaluated, see IUCN Red List , (Ref. 36508)
Dangerous:	harmless
Coordinator:	Pavanelli, Carla Simone
Main Ref:	Starnes, W.C. and I. Schindler. 1993. (Ref. 10296)
Update \| Add

Suriname country information
Common names:	[ No common name ]	Ref:
Status:	native	Ref: Pavanelli, C.S., 1999
Salinity:	freshwater
Regulations:	no regulations	Ref:
Uses:	no uses
Comments:	Also Ref. 35189.
Country Information:	www.cia.gov/cia/publications/factbook/geos/ns.html
National Fisheries Authority:	www.caricom-fisheries.com/suriname
Occurrences:	Occurrences Point map
Main Ref:	Pavanelli, C.S., 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:

Internet sources:

Note: use the Back button of your browser to return to FishBase.

Checked: Pavanelli, Carla Simone

Modified: Torres, Armi G.

Entered: Casal, Christine Marie V.

CGNET - US

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

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