Arapaima gigas stocks have declined drastically in the lower Tocantins River in the Amazon Microregion.

Autor: Macedo DB; Federal Rural University of the Amazon, Applied Genetics Laboratory, Socio-environmental and Water Resources Institute, 2501 Tancredo Neves Avenue, Terra Firme, 66077-830 Belém, PA, Brazil.; Federal University of Pará, Institute of Biological Sciences, Augusto Corrêa Street, nº 01, Guamá, 66075-110 Belém, PA, Brazil., Viana JS; Federal Rural University of the Amazon, Tropical Aquaculture Laboratory, Socio-environmental and Water Resources Institute, 2501 Tancredo Neves Avenue, Terra Firme, 66077-830 Belém, PA, Brazil., Coelho HJP; Federal Rural University of the Amazon, Applied Genetics Laboratory, Socio-environmental and Water Resources Institute, 2501 Tancredo Neves Avenue, Terra Firme, 66077-830 Belém, PA, Brazil., Costa CVC; Federal Rural University of the Amazon, Applied Genetics Laboratory, Socio-environmental and Water Resources Institute, 2501 Tancredo Neves Avenue, Terra Firme, 66077-830 Belém, PA, Brazil., Costa DGBD; Federal Rural University of the Amazon, Applied Genetics Laboratory, Socio-environmental and Water Resources Institute, 2501 Tancredo Neves Avenue, Terra Firme, 66077-830 Belém, PA, Brazil., Santos ÁDD; Federal Rural University of the Amazon, Applied Genetics Laboratory, Socio-environmental and Water Resources Institute, 2501 Tancredo Neves Avenue, Terra Firme, 66077-830 Belém, PA, Brazil., Correa RMS; Federal Rural University of the Amazon, Applied Genetics Laboratory, Socio-environmental and Water Resources Institute, 2501 Tancredo Neves Avenue, Terra Firme, 66077-830 Belém, PA, Brazil., Ramos RTJ; Federal University of Pará, Institute of Biological Sciences, Augusto Corrêa Street, nº 01, Guamá, 66075-110 Belém, PA, Brazil., Rodrigues MDN; Federal Rural University of the Amazon, Applied Genetics Laboratory, Socio-environmental and Water Resources Institute, 2501 Tancredo Neves Avenue, Terra Firme, 66077-830 Belém, PA, Brazil.
Jazyk: angličtina
Zdroj: Anais da Academia Brasileira de Ciencias [An Acad Bras Cienc] 2024 Jun 17; Vol. 96 (3), pp. e20231343. Date of Electronic Publication: 2024 Jun 17 (Print Publication: 2024).
DOI: 10.1590/0001-3765202420231343
Abstrakt: Arapaima gigas, an emblematic species of the Amazon region and a longstanding primary fishing resource, currently holds a "Data Deficient" status on the International Union for Conservation of Nature Red List, and is listed as an endangered species in Brazil. The Tocantins River is the most extensively modified large tributary of the Amazon Basin, and thus can affect the dynamics of ichthyofaunal populations. Over a period of 1 year, representatives of the fishing communities and fishermen from 25 fishing communities from four municipalities in the lower Tocantins River region were interviewed, and the obtained information was evaluated based on the literature to survey the population abundance status of A. gigas in the region and its impact on local communities. Among the fishermen interviewed, only one reported still encountering and fishing A. gigas on Jaracuera Island. The disappearance of A. gigas in the region are viewed as having economically disastrous consequences for the residents. Additionally, other endemic fish species are no longer observed in this locality either. If fishery management officials do not work together with local communities, A. gigas could disappear from the northern region of Brazil, where information on the dynamics of A. gigas fishing is lacking.
Databáze: MEDLINE
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