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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Building knowledge to save species: 20 years of ichthyological studies in the Tocantins-Araguaia River basin

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Author(s):
Carine Cavalcante Chamon [1] ; Jane Piton Serra [2] ; Priscila Camelier [3] ; Angela Maria Zanata [4] ; Ilana Fichberg [5] ; Manoela Maria Ferreira Marinho [6]
Total Authors: 6
Affiliation:
[1] Universidade Federal do Tocantins. Laboratório de Ictiologia Sistemática - Brasil
[2] Instituto Federal de Educação. Ciência e Tecnologia do Sul de Minas Gerais - Brasil
[3] Universidade Federal da Bahia. Instituto de Biologia. Laboratório de Sistemática e Biogeografia Animal, Programa de Pós-Graduação em Biodiversidade e Evolução - Brasil
[4] Universidade Federal da Bahia. Instituto de Biologia. Laboratório de Ictiologia, Programa de Pós-Graduação em Biodiversidade e Evolução - Brasil
[5] Universidade Federal de São Paulo. Departamento de Ecologia e Biologia Evolutiva - Brasil
[6] Universidade Federal da Paraíba. Departamento de Sistemática e Ecologia - Brasil
Total Affiliations: 6
Document type: Journal article
Source: Biota Neotropica; v. 22, n. 2 2022-06-13.
Abstract

Abstract: The Tocantins-Araguaia River basin is the largest basin located entirely in the Brazilian territory. The high degree of endemism of its ichthyofauna has been revealed in several studies, with the upper Tocantins River having the largest absolute number of endemic taxa within the Amazon basin. Here we provide an accurate review of the ichthyofauna of the Tocantins-Araguaia River basin, based on collections made between 2000-2020, including an extensive list of valid fish species occurring in the basin and a discussion of the major threats to its ichthyofauna. Ichthyofauna diversity was further refined based on web searches. Protected Areas and hydropower plants were mapped using shape files or coordinates from the responsible government agencies. 751 species of fishes are currently known from the Tocantins-Araguaia River basin. A considerable increase in fish diversity knowledge occurred in the last 20 years, in parallel with significant anthropic alterations in the basin and its surroundings. Dams constructed along the basin are ranked as the major threats to ichthyofauna. Although the drainage-basin holds several conservation units and indigenous lands, they have not been sufficient to guarantee the preservation of fish species. Our compilation emphasizes that the upper Tocantins River must be considered as a priority area to preserve fish species. Some mitigation actions that may achieve satisfactory results concerning ichthyofauna conservation are proposed. (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: 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: 17/09321-5 - Miniature Characiformes (Teleostei: Ostariophysi): evolution, diversity and biogeography
Grantee:Manoela Maria Marinho Koh
Support Opportunities: BIOTA-FAPESP Program - Young Investigators Grants