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(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 rheophilic South American darter (Crenuchidae:Characidium) from the rio Juruena basin, Brazil, with comments on morphological adaptations to life in fast-flowing waters

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Author(s):
Zanata, Angela M. [1] ; Ohara, Willian M. [2] ; Oyakawa, Osvaldo T. [3] ; Dagosta, Fernando C. P. [4]
Total Authors: 4
Affiliation:
[1] Univ Fed Bahia, Inst Biol, Rua Barao Jeremoabo 147, BR-40170115 Salvador, BA - Brazil
[2] Univ Fed Rondonia, Dept Engn Pesca, Presidente Medici - Brazil
[3] Univ Sao Paulo, Museu Zool, Lab Ictiol, Sao Paulo - Brazil
[4] Fundacao Univ Fed Grande Dourados, Fac Ciencias Biol & Ambientais, Dourados, MS - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Journal of Fish Biology; v. 97, n. 5, p. 1343-1353, NOV 2020.
Web of Science Citations: 2
Abstract

Characidium iaquira, a new species from the upper rio Juruena, rio Tapajos basin, Brazil, is described. The new species can be promptly distinguished from all congeners by having a unique v-shaped dark mark lying along the caudal-fin extension, in medium- and large-sized specimens, and a remarkable iridescent green colouration in life.Characidium iaquirais closely related toCharacidium crandelliiandCharacidium declivirostreby sharing unambiguous synapomorphies such as branchiostegal membranes united to each other across the isthmus, a scaleless area extending from the isthmus to the pectoral girdle, and dermal flaps surrounding anterior and posterior naris independent, but touching each other distally. Morphological specializations of the paired fins in the three riffle-dwellers species are discussed, including the wing-like shape, robustness, and inclination of the pectoral fin. (AU)

FAPESP's process: 16/19075-9 - Diversity and evolution of Gymnotiformes (Teleostei, Ostariophysi)
Grantee:Naercio Aquino Menezes
Support Opportunities: Research Projects - 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: 17/09321-5 - Miniature Characiformes (Teleostei: Ostariophysi): evolution, diversity and biogeography
Grantee:Manoela Maria Marinho Koh
Support Opportunities: BIOTA-FAPESP Program - Young Investigators Grants
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