Seasonal implications on toxicity biomarkers of Loricariichthys anus (Valenciennes, 1835) from a subtropical reservoir

Amaral, Aline Monique Blank do; Gomes, Jeane de Lima Costa; Weimer, Gustavo H.; Marins, Aline Teixeira; Loro, Vania Lúcia; Zanella, Renato

doi:10.1016/j.chemosphere.2017.10.114

Cited by 22 publications

(2 citation statements)

References 47 publications

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“…De modo geral, as atividades humanas apresentam elevado potencial poluidor e são responsáveis por grandes alterações nas características dos ecossistemas aquáticos. Estes ambientes localizados próximos a áreas antropizadas estão cada vez mais vulneráveis a poluição por uma grande variedade de contaminantes que podem causar impactos significativos no ecossistema a curto e longo prazo (do Amaral et al, 2018;Yang et al, 2020).…”

Section: Poluição De áGuas Superficiaisunclassified

Mesocosmos como modelo experimental na avaliação da ecotoxicidade aquática

Queiroz¹,

Silva²,

Paiva³

2021

RECURSO ÁGUA - Tecnologias E Pesquisas Para O Uso E a Conservação De Ecossistemas Aquáticos

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Section: Poluição De áGuas Superficiaisunclassified

Mesocosmos como modelo experimental na avaliação da ecotoxicidade aquática

Queiroz¹,

Silva²,

Paiva³

2021

RECURSO ÁGUA - Tecnologias E Pesquisas Para O Uso E a Conservação De Ecossistemas Aquáticos

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“…Furthermore, the results of this assessment can serve as a basis for improving management and establishing adequate production controls (Leung et al, 2015). To do this, in addition to monitoring the physicochemical variables of the pond water, using bioindicators is a promising and widely used tool to assess the negative impacts of human activities on the environment (Amaral et al, 2018;Cerezer et al, 2020). This study aimed to evaluate the interference of intensive fish farming on the physicochemical variables of the water and on the zooplankton community (Rotifera, Cladocera and Copepoda) of a tilapia (O. niloticus) pond in southern Brazil.…”

Section: Introductionmentioning

confidence: 99%

Intensive fish farming: changes in water quality and relationship with zooplankton community

Storck,

Sippert,

Seben

et al. 2023

Acta Limnol. Bras.

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Aim This study aimed to evaluate the interference of intensive fish farming in the physicochemical variables of water and in the zooplankton community from a tilapia (Oreochromis niloticus Linnaeus, 1758) pond in southern Brazil. In addition, it was verified whether the analyzed zooplankton groups could be bioindicators of changes in the quality of pond water. Methods The water and zooplankton sample collections were carried out monthly in different places of the pond: at the water supply site (affluent), in the middle of the pond and at the water outlet site (effluent). Analyzes related to nitrogen series (total nitrogen, total ammonia, nitrite + nitrate), dissolved oxygen, total hardness, total alkalinity, total phosphorus, pH, turbidity and water temperature were performed at all sampling sites. In addition, the density of the zooplankton groups Copepoda (adults and nauplii), Rotifera and Cladocera was determined. Results Regarding the changes between the quality variables of the affluent and effluent water of the pond, the outlet water showed a significant increase only in the variable total alkalinity. Rotifers were the most abundant organisms, and nauplii Copepoda showed a significant increase in the density of organisms in the middle of the pond compared to the inlet water. Both the redundancy analysis (RDA) and the Spearman correlation matrix revealed that zooplanktonic groups are associated with certain physicochemical variables of the water. According to the Analysis of Indicator Species (IndVal), the evaluated organisms are not related to bioindicator species in this environment. Conclusions Therefore, intensive production of O. niloticus caused changes only in the total alkalinity of the pond water. The zooplanktonic organisms correlated with the physicochemical variables of the water and between the groups, and did not show potential for bioindicators of water quality in the different locations of the pond.

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