skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices

Assessing the water quality in a World Heritage Site using biomarkers in top fish predators

Santos, Hugo de Andrade Gonçalves dos ; Kitamura, Rafael Shinji Akiyama ; Soares, Gésica da Costa Bernardo ; dos Santos, Mayara Padovan ; Miranda, Luis Phelipe de Souza ; Mela, Maritana ; Vitule, Jean Ricardo Simões ; Grassi, Marco Tadeu ; Cestari, Marta Margarete ; Padial, Andre Andrian ; Silva de Assis, Helena Cristina

The Science of the total environment, 2024-06, Vol.927, p.172072-172072, Article 172072 [Periódico revisado por pares]

Netherlands: Elsevier B.V

Texto completo disponível

Citações Citado por
  • Título:
    Assessing the water quality in a World Heritage Site using biomarkers in top fish predators
  • Autor: Santos, Hugo de Andrade Gonçalves dos ; Kitamura, Rafael Shinji Akiyama ; Soares, Gésica da Costa Bernardo ; dos Santos, Mayara Padovan ; Miranda, Luis Phelipe de Souza ; Mela, Maritana ; Vitule, Jean Ricardo Simões ; Grassi, Marco Tadeu ; Cestari, Marta Margarete ; Padial, Andre Andrian ; Silva de Assis, Helena Cristina
  • Assuntos: Animals ; Biomarkers - metabolism ; Biomonitor ; Brazil ; Ecotoxicology ; Environmental health ; Environmental Monitoring - methods ; Fishes ; Guaraguaçu River ; Rivers - chemistry ; Water contaminants ; Water Pollutants, Chemical - analysis ; Water Pollutants, Chemical - toxicity ; Water Quality
  • É parte de: The Science of the total environment, 2024-06, Vol.927, p.172072-172072, Article 172072
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The use of biomarkers in fish for biomonitoring is a valuable approach to reveal effects of human impacts on biota health. Top predator fish are effective models for monitoring human activities' impacts on aquatic ecosystems. The Guaraguaçu River is the largest river-system on coastal region of South Brazil and a World Heritage site. The river receives contaminants from disorderly urban growth, including discharges of domestic sewage and small fishery boats, particularly during the tourist season. Our study aimed to assess impact of anthropogenic activities on water quality in the Guaraguaçu River by analyzing environmental contamination biomarkers in the top fish predator Hoplias malabaricus. Fish were collected using a fyke net trap across sectors representing a gradient of anthropic impact: sector 1 - pristine; sector 2 – impacted; and sector 3 - less impacted. Water samples were collected to analyze the presence of trace elements and pesticide. Biomarkers of the antioxidant system, histopathology, genotoxicity, neurotoxicity, and concentration of trace elements were analyzed in fish tissues. In water samples Al, Fe and Mn were detected, but no pesticides were found. In fish muscle, zinc and iron were detected. Brain acetylcholinesterase activity decreased in impacted sectors, indicating neurotoxic effects. The antioxidant system increased activity in gills and liver, and damage from lipoperoxidation was observed, particularly in sector 2 when compared to sector 1, suggesting oxidative stress. Histopathological biomarkers revealed lesions in the liver and gills of fish in impacted sectors. Micronuclei, a genotoxicity biomarker, were observed in organisms from all sectors. Our results demonstrate detrimental effects of poor water quality on biota health, even when contaminants are not detected in water. [Display omitted] •Fe, Al and Mn were detected in water of all the sectors.•Presence of blood genotoxicity in impacted and non-impacted sectors•Biochemical and histopathological biomarkers alterations in impacted sectors•Essential trace elements were detected in fish tissue of all the sectors.
  • Editor: Netherlands: Elsevier B.V
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.