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Susana Braz Mota

Susana Braz Mota
Publicado dia 08 de ago de 2019 às 11:55

Genotoxic and Biochemical Responses Triggered by Polycyclic Aromatic Hydrocarbons in Freshwater and Marine Fish: Tambaqui and Seahorse as Bioindicators

Autor: Adriana Chipari-Gomes
Coautor: Frederico Augusto Cariello, Helen Sadauskas-Henrique, Susana Braz-Mota, V. M. F. Almeida-Val.

Fish accumulate pollutants directly from contaminated water or indirectly through ingestion of contaminated food; fish also react sensitively to environmental changes or stressors in the form of low concentrations of genotoxic substances present in the environment, which may affect the genetic diversity of aquatic populations. In addition, these organisms respond to toxic agents in a similar way to higher vertebrates, allowing a better assessment of substances that are potentially teratogenic, mutagenic and carcinogenic to humans. Among the types of contaminants that affect water bodies and subsequently fish and other aquatic organisms, we can distinguish: metals present in domestic and industrial effluents and released in effluents of mining companies; polycyclic aromatic hydrocarbons (PAHs) from oil and its derivatives; pesticides drained from plantations; so-called emerging Tambaqui and Seahorse as Bioindicators contaminants, in which we find medications, drugs, and cosmetics released daily in domestic sewage; and many others.