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Fish parasites as bioindicators of heavy metal accumulation in the Jacaré-Pepira and Jacaré-Guaçú rivers, Tietê-Jacaré River Basin, State of São Paulo, Brazil

Grant number: 17/00566-5
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): June 01, 2017
Effective date (End): April 30, 2021
Field of knowledge:Agronomical Sciences - Fishery Resources and Fishery Engineering - Inland Water Fishery Resources
Acordo de Cooperação: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Vanessa Doro Abdallah Kozlowiski
Grantee:Lucas Aparecido Rosa Leite
Host Institution: Instituto de Biociências (IBB). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil


Pollution of aquatic environments as a result of negative anthropogenic activities remains a major problem, causing disastrous effects on the health of living organisms and becoming the subject of many discussions. To obtain knowledge about the biological levels of pollutants available in the aquatic environment, bioindicators become a very useful tool in aiding the chemical analyzes of water that primarily describe the total concentration of the respective pollutant. Recent studies have shown that, in addition to already established indicators, certain parasites and their hosts can be used as biomonitoring tools, since the pollution also affects their health and, consequently, their occurrence and distribution. Several studies evaluating the role of parasites as accumulators and pollution indicators have been carried out over decades, using a wide parasite-host combination. In addition, the high potential of parasites for metal accumulation and their high effectiveness in the evaluation of aquatic pollution compared to free-living organisms has been clearly demonstrated. Therefore, the objective of this research project is to evaluate the cumulative capacity of heavy metals and the potential bioindicator of fish parasites by comparing the concentrations of the elements with the tissues of their respective hosts in the Jacaré-Pepira and Jacaré- Guaçú River, in the Tietê-Jacaré River basin, State of São Paulo, Brazil. For this, specimens of Hypostomus regani, Hoplias malabaricus and Cichla ocellaris will be collected monthly between March 2017 and March 2019, in both rivers. Samples of parasites (hirudines, nematodes and cestodes), as well as tissues (liver, muscle and intestine), as well as water and sediment from the same collection points will be taken from the fish. The concentration of metals will be determined by inductively coupled plasma mass spectrometry (ICP-MS), and the priority elements will be Magnesium (Mg), Aluminum (Al), Titanium (Ti), Chromium (Cr) (Ni), Copper (Cu), Zinc (Zn), Arsenic (As), Cadmium (Cd), Barium (Ba) and Lead (Pb). After obtaining the concentration data, the Shapiro-Wilk test will be applied to test the normality of the data, then the one-way ANOVA variance test will be applied to test if there are significant differences between the concentrations of the samples (p d 0.01 ). The Spearman correlation test will also be applied to verify if there are possible relationships / interactions between the concentrations of the elements in the tissues, parasites, water and sediment, as well as the sex, size and stage of maturation of the host. (AU)

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
LEITE, LUCAS A. R.; JANUARIO, FELIPE F.; PADILHA, PEDRO M.; DO LIVRAMENTO, EMMYLE T. C.; DE AZEVEDO, RODNEY K.; ABDALLAH, VANESSA D.. Heavy Metal Accumulation in the Intestinal Tapeworm Proteocephalus macrophallus Infecting the Butterfly Peacock Bass (Cichla ocellaris), from Southeastern Brazil. Bulletin of Environmental Contamination and Toxicology, v. 103, n. 5, p. 670-675, . (17/00566-5, 16/21040-9)
ROSA LEITE, LUCAS APARECIDO; PEDREIRA FILHO, WALTER DOS REIS; DE AZEVEDO, RODNEY KOZLOWISKI; ABDALLAH, VANESSA DORO. atterns of distribution and accumulation of trace metals in Hysterothylacium sp. (Nematoda), Phyllodistomum sp. (Digenea) and in its fish host Hoplias malabaricus, from two neotropical rivers in southeastern Brazi. Environmental Pollution, v. 277, . (16/21040-9, 17/00566-5)
LEITE, LUCAS APARECIDO ROSA; DOS REIS PEDREIRA FILHO, WALTER; DE AZEVEDO, RODNEY KOZLOWISKI; ABDALLAH, VANESSA DORO. Proteocephalus macrophallus (Cestoda: Proteocephalidae) Infecting Cichla kelberi (Cichliformes: Cichlidae) as a Bioindicator for Trace Metal Accumulation in a Neotropical River from Southeastern Brazil. WATER AIR AND SOIL POLLUTION, v. 232, n. 12, . (16/21040-9, 17/00566-5)
BUENO, REGIANE MARIA DOS REIS; LEITE, LUCAS APARECIDO ROSA; PELEGRINI, LARISSA SBEGHEN; ABDALLAH, VANESSA DORO; DE AZEVEDO, RODNEY KOZLOWISKI. Biodiversity of the metazoan parasites of Hoplias malabaricus (Bloch, 1794) from the Jacare-Pepira River, Tiete-Jacare River Basin, Sao Paulo State, Brazil. BOLETIM DO INSTITUTO DE PESCA, v. 48, p. 8-pg., . (17/00566-5, 17/20225-8, 16/21040-9)
LEITE, LUCAS APARECIDO ROSA; PEDREIRA FILHO, WALTER DOS REIS; DE AZEVEDO, RODNEY KOZLOWISKI; ABDALLAH, VANESSA DORO. Bioaccumulation and health risk assessment of trace metal contamination in the musculature of the trahira fish (Hoplias malabaricus) from two neotropical rivers in southeastern Brazil. JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY, v. 78, p. 8-pg., . (17/00566-5, 16/21040-9)
DIAS, K. G. A.; DE LEON, G. PEREZ-PONCE; DA SILVA, R. J.; VIEIRA, D. H. M. D.; LEITE, L. A. R.; DE AZEVEDO, R. K.; ABDALLAH, V. D.. Morphological and molecular data on Phyllodistomum (Digenea: Gorgoderidae) from Brazil, with the description of a new species parasitizing Hoplias malabaricus (Bloch, 1794) (Osteichthyes, Erythrinidae). JOURNAL OF HELMINTHOLOGY, v. 97, p. 11-pg., . (17/00566-5, 20/05412-9, 19/25223-9)
L. A. R. LEITE; F. F. JANUÁRIO; L. S. PELEGRINI; B. ANTONIASSI; R. K. AZEVEDO; V. D. ABDALLAH. Padrões sazonais de infestação por parasitos monogenéticos de peixes e sua relação com os parâmetros da água em dois rios com diferentes gradientes de perturbação no sudeste do Brasil. Brazilian Journal of Biology, v. 83, . (16/21040-9, 17/02901-6, 17/00566-5)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
LEITE, Lucas Aparecido Rosa. Host-parasite systems as sentinels for water pollution in the Tietê-Jacaré hydrographic basin, southeastern Brazil. 2021. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Instituto de Biociências. Botucatu Botucatu.

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