O Estado Da Piscicultura Na Amazônia Brasileira

Pantoja-Lima, Jackson; Rocha, Maria Juliete Souza; Castro, Liliane de Araújo; Amaral, Aldessandro da Costa; Filho, Celso Scherer; Paixão, Romulo Veiga; Feijó, Julmar da Costa; Araújo, Hilacy de Souza; Aride, Paulo Henrique Rocha; Oliveira, Adriano Teixeira de; Mattos, Bruno Olivetti de

doi:10.22533/at.ed.0422115031

Cited by 2 publications

(1 citation statement)

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“…However, based on the raceway system, this production system has good acceptance and easy adaptation, and is seen as an alternative to keep fish farming in the field, reducing the rural exodus in the region (Santos et al, 2020). Pantoja-Lima et al (2015), state that although structured fish farming in streams is regulated by federal law, little is known about its impacts on natural fish communities along streams (from upstream to downstream) in Central Amazonia. However, it is known that conservation aspects, such as forest maintenance, are of great importance for fish communities, whether on a local scale (Lo et al, 2020) or multiscale (Yirigui et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Environmental and ichthyofaunistic characteristics of Amazonian streams with and without fish farm

Santos,

Oliveira,

Aride

et al. 2023

Braz. J. Biol.

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The environmental impacts caused by fish farming can lead to changes in aquatic ecosystems, especially in fish communities. In this study, we investigated possible changes in water quality, in the number of species and individuals of the same species caused by the construction of fish nurseries in dammed Amazonian streams. For this purpose, four streams located in the municipalities of Novo Airão and Presidente Figueiredo were selected. Samples were collected in streams without fish farming and in streams with stretches used for fish farming, where collections took place both downstream and upstream. The fish were captured, identified, quantified and the water was collected for physical and chemical analyses, in addition to the environmental characterization that was carried out. Comparisons were made using fish richness and abundance indices between the sampled points and correspondence analysis of the species identified at the collection sites, using the Mantel test and principal component analysis (PCA) for the environmental characteristics of the water and variables physical and chemical, and permutational multivariate analysis of variance (PERMANOVA) to verify the possible effects of species composition on the sampled conditions and on the analyzed environmental variables. In total, 2,302 fish belonging to 53 species, 15 families and six orders were found. We conclude that the Amazonian streams dammed for fish farming, under the analyzed conditions, can be characterized as environments with different and specific levels of richness and abundance, however, the data set analyzed in this study did not show that these characteristics are directly related to productive activity. We recommend that further studies be carried out following the current research.

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