Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A New Miniature Species of Serrapinnus (Characiformes: Characidae) from the Upper Rio Araguaia, Brazil

Full text
Author(s):
Jerep, Fernando C. [1] ; Dagosta, Fernando C. P. [2] ; Ohara, Willian M. [3]
Total Authors: 3
Affiliation:
[1] Univ Estadual Londrina, Museu Zool, Programa Posgrad Ciencias Biol, Ctr Ciencias Biol, Dept Biol Anim & Vegetal, BR-86057970 Londrina, PR - Brazil
[2] Fundacao Univ Fed Grande Dourados, Fac Ciencias Biol & Ambientais, Rodovia Dourados Itahum, Km 12 Cidade Univ, BR-79804970 Dourados, MS - Brazil
[3] Univ Sao Paulo, Museu Zool, Ave Nazare 481, Caixa Postal 42494, BR-04218970 Sao Paulo, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Copeia; v. 106, n. 1, p. 180-187, MAR 2018.
Web of Science Citations: 0
Abstract

During an expedition to the headwaters of the Rio das Mortes, Mato Grosso, in the Brazilian Shield, a new species of Serrapinnus was found. The new species is distinguished from all congeners by having eight branched dorsal-fin rays, three premaxillary teeth, and a conspicuous dark stripe extending from the eye to the caudal-fin median rays. Among congeners, a similar coloration pattern is present only in S. sterbai, but in that species the stripe usually originates posterior to the eye, on the opercle, and extends to the caudal-fin median rays. In the single locality where the new species was captured, it occurs syntopically with Hyphessobrycon cf. vilmae, another small characid in which a dark midlateral stripe is quite remarkable. Both species were captured together and were observed in situ swimming in mixed shoals. Thus, it is suggested that both species increase their individual chances of survival through the strategy of ``protective association{''} via numeric mimicry. (AU)

FAPESP's process: 11/50282-7 - An inventory of the Characiform fish fauna (Teleostei, Ostariophysi) from South America
Grantee:Naercio Aquino Menezes
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 13/22473-8 - Endemism and biogeographic analysis of fishes from Madeira River basin
Grantee:Willian Massaharu Ohara
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 11/23419-1 - Biogeographic history of the fishes from the Amazon Basin: a methodological comparative approach
Grantee:Fernando Cesar Paiva Dagosta
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 16/07246-3 - Incongruence in biogeographic pattern-based analyses: a case study from amazonian fishes
Grantee:Fernando Cesar Paiva Dagosta
Support Opportunities: Scholarships in Brazil - Post-Doctoral