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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.)

Morphological variation of Hypostomus affinis (Teleostei: Loricariidae) from eastern Brazilian drainages

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Author(s):
Perez, Camila F. [1] ; Oliveira, Alexandre K. [2] ; Garavello, Julio C. [1]
Total Authors: 3
Affiliation:
[1] Univ Fed Sao Carlos, Dept Ecol & Biol Evolut, Lab Ictiol Sistemat, Rodovia Washington Luis, Km 235, Caixa Postal 676, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Ciencias Ambientais, Rodovia Washington Luis, Km 235, Caixa Postal 676, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Ichthyological Exploration of Freshwaters; v. 30, n. 4, p. 331-343, JUL 2021.
Web of Science Citations: 0
Abstract

Morphological variations of Hypostomus affinis from the Paraiba do Sul, Doce and Mucuri rivers are described and discussed in the light of biogeographic scenarios for freshwater fish in eastern Brazil. Variations were observed in the lateral keels of the body and head, in the color pattern and in the number of premaxillary and dentary teeth. Keels are more conspicuous on specimens from the Paraiba do Sul River because dermal plates have rows of larger odontodes. The samples from Doce and Mucuri rivers have greater morphometric and chromatic similarities in relation to the samples from the Paraiba do Sul River. On the other hand, specimens from the Mucuri and Paraiba do Sul rivers have fewer teeth in both jaws than those from the Doce river. Despite such variations, no character alone is able to recognize and differentiate the specimens from each of these three drainages. Distribution and morphological variation of Hypostomus affinis are related to the geomorphological history of eastern Brazilian coastal drainages. (AU)

FAPESP's process: 18/04388-7 - Revision of the nominal species of the ichthyofauna from São Paulo State rivers through topotypes morphological and molecular analysis, including a characterization of the remnant ichthyological diversity in the type localities and their vicinities
Grantee:Julio Cesar Garavello
Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants