Residual loads from tilapia farming on the sediment of a Brazilian reservoir

This study investigated the sediment geochemistry of a fish farming area in net cage tanks in the Rosário reservoir, Brazil. Three areas were investigated: reference (RA), fish farming (FFA), and dispersion (DA). The results were analyzed through correlation, similarity, principal component analysis...

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Bibliographic Details
Published in:Environmental research 2024-07, Vol.252 (Pt 3), p.118950-118950, Article 118950
Main Authors: do Nascimento Melo Júnior, Hênio, José de Paula Filho, Francisco, Marcel Coelho Menezes, Jorge, Vitor Sobral Melo, Hênio, Melo Coutinho, Henrique Douglas, Nonato Pereira Teixeira, Raimundo
Format: Article
Language:English
Subjects:
Fish farming
Multivariate statistics
Nutrient
Organic matter
Semiarid
Trace metal
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Summary:This study investigated the sediment geochemistry of a fish farming area in net cage tanks in the Rosário reservoir, Brazil. Three areas were investigated: reference (RA), fish farming (FFA), and dispersion (DA). The results were analyzed through correlation, similarity, principal component analysis, comparison with legislation, sediment quality guidelines, and sediment pollution indices. The mean concentrations for RA, FFA, and DA areas were respectively: Cu (mg.kg−1) 37.74, 62.23, and 71.83; Mn (mg.kg−1) 22.55, 66.48, and 55.90; Zn (mg.kg−1) 9.13, 114.83, and 94.27; Fe (%) 0.28, 0.40, and 0.43; OM (%) 15.84, 21.95, and 18.45; TOC (%) 1.86, 3.69, and 6.05; TN (mg.kg−1) 2365.00, 5015.00, and 3447.51; TP (mg.kg−1) 780.00, 6896.00, and 2585.50; ORP (mV) −95.50, −135.20, and −127.10; pH 6.60, 6.58, and 6.05;
ISSN:0013-9351
1096-0953
DOI:10.1016/j.envres.2024.118950