Taxonomy of the genus Tricomycterus Valenciennes, 1832 (Siluriforms, Trichomycteridae) in the Doce river basin. the study of a remaining biodiversity of a devastated basin

• Grant number: 16/25467-7
• Support Opportunities: Scholarships in Brazil - Master
• Start date: May 01, 2017
• End date: September 30, 2018
• Field of knowledge: Biological Sciences - Zoology - Taxonomy of Recent Groups
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Mario Cesar Cardoso de Pinna
• Grantee: Vinícius José Carvalho Reis
• Host Institution: Museu de Zoologia (MZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated scholarship(s): 17/17332-7 - Comparative anatomical study of the type material of the genus Trichomycterus (Siluriformes, Trichomycteridae) from Southeastern Brazilian drainages, BE.EP.MS

Abstract

This project aims to study the diversity of one of the major taxonomic bottlenecks of the Neotropical ichthyofauna, the genus Trichomycterus (Siluriformes, Trichomycteridae), with 184 nominal species distributed throughout mainly of South America cis- and trans-Andina. Nowadays, the taxonomy of Trichomycterus is both incomplete and confusing, with many species not described and a multiplicity of forms already described although with uncertain validity. There is a consensus that a genus's complete review is an unexecutable task now. This is because of the magnitude of the resources needed to do it. In the other hand, it is possible a real progress by using a regional strategy, focused on individual hydrographic basins. In this study, we propose to study in detail the composition of Trichomycterus species in the Doce river basin, which the main stream was recently devastated by Mariana's tragedy. Thus, a detailed analysis of the phenotypic variations will be done concomitantly with a barcoding analysis (COI). The comparison between the results of the two types of data and their projection in the geographical context will allow a detailed evaluation of the diversity of the genus in the Doce river basin universe. A nomenclatural investigation will define the available names applicable to the known species, with considerations of priority and synonymies. The species without prior nomenclatural record shall be described as new species in publications derived from the thesis dissertation. The data, both morphological and molecular, will be obtained mainly from already available ichthyological collections, in addition to some point campaigns to supply key locations that are sub-sampled nowadays. The results of this study will be important to define adequate evidence standards to recognize and diagnose Trichomycterus species, in order to evaluate its diversity and to assist in the conservation and recovery efforts of the Doce river. (AU)

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SARMENTO-SOARES, LUISA M.; PESSALI, TIAGO C.; REIS, VINICIUS J. C.; DE MEDEIROS, LUCAS S.; LIMA, SERGIO M. Q.; SILVA, JULIANA P.; MARTINS-PINHEIRO, RONALDO F.; DE PINNA, MARIO C. C.. Distribution, morphological notes and conservation status of the psammophilus Microcambeva catfishes Siluriformes: Trichomycteridae). Zootaxa, v. 4712, n. 4, p. 576-588, DEC 23 2019. (16/25467-7)

REIS, VINICIUS J. C.; DE PINNA, MARIO C. C.; PESSALI, TIAGO C.. A new species of Trichomycterus Valenciennes 1832 (Trichomycteridae: Siluriformes) from the Rio Doce drainage with remarkable similarities with Bullockia and a CT-scan survey. Journal of Fish Biology, v. 95, n. 3, AUG 2019. (16/25467-7, 15/26804-4)

REIS, VINICIUS; DE PINNA, MARIO. Diversity and systematics of Trichomycterus Valenciennes 1832 (Siluriformes: Trichomycteridae) in the Rio Doce Basin: iterating DNA, phylogeny and classical taxonomy. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, v. N/A, p. 98-pg., 2022-06-17. (16/25467-7, 15/26804-4, 20/13433-6)

DE PINNA, MARIO; REIS, VINICIUS; BRITSKI, HERALDO. A new species of Trichogenes (Siluriformes, Trichomycteridae ), with a discussion on the homologies of the anterior orbital bones in trichomycterids and other loricarioids. American Museum Novitates, v. N/A, n. 3951, p. 27-pg., 2020-04-23. (16/25467-7, 15/26804-4)

DE PINNA, MARIO; REIS, VINICIUS; BRITSKI, HERALDO. A new species of Trichogenes (Siluriformes, Trichomycteridae ), with a discussion on the homologies of the anterior orbital bones in trichomycterids and other loricarioids. American Museum Novitates, n. 3951, p. 1-27, APR 23 2020. (15/26804-4, 16/25467-7)

REIS, VINICIUS J. C.; DE PINNA, MARIO. The type specimens of Trichomycterus alternatus (Eigenmann, 1917) and Trichomycterus zonatus (Eigenmann, 1918), with elements for future revisionary work (Teleostei: Siluriformes: Trichomycteridae). Zootaxa, v. 4585, n. 1, p. 100-120, APR 11 2019. (15/26804-4, 16/25467-7)

MARIO DE PINNA; VITOR ABRAHÃO; VINICIUS REIS; ANGELA ZANATA. A new species of Copionodon representing a relictual occurrence of the Copionodontinae (Siluriformes: Trichomycteridae), with a CT-scan imaging survey of key subfamilial features. Neotropical Ichthyology, v. 16, n. 4, 2018-12-06. (15/26804-4, 14/11397-1, 16/25467-7)

SARMENTO-SOARES, LUISA M.; PESSALI, TIAGO C.; REIS, VINICIUS J. C.; DE MEDEIROS, LUCAS S.; LIMA, SERGIO M. Q.; SILVA, JULIANA P.; MARTINS-PINHEIRO, RONALDO F.; DE PINNA, MARIO C. C.. Distribution, morphological notes and conservation status of the psammophilus Microcambeva catfishes Siluriformes: Trichomycteridae). Zootaxa, v. 4712, n. 4, p. 13-pg., 2019-12-23. (16/25467-7)