Heavy Metal Accumulation in the Intestinal Tapeworm Proteocephalus macrophallus Infecting the Butterfly Peacock Bass (Cichla ocellaris), from Southeastern Brazil

Autor(es)

Leite, Lucas A. R. ^[1] ; Januario, Felipe F. ^[2] ; Padilha, Pedro M. ^[1] ; do Livramento, Emmyle T. C. ^[3] ; de Azevedo, Rodney K. ^[3] ; Abdallah, Vanessa D. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Inst Biociencias, Botucatu, SP - Brazil

^[2] Univ Sagrado Coracao, Pesquisa & Posgrad, Bauru - Brazil

^[3] Ctr Univ CESMAC, Programa Posgrad Anal Sistemas Ambientais, Alagoas - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Bulletin of Environmental Contamination and Toxicology; v. 103, n. 5, p. 670-675, NOV 2019.
• Citações Web of Science: 0

Resumo

Here we evaluate the potential of heavy metal accumulation of Proteocephalus macrophallus parasitizing the Butterfly Peacock Bass (Cichla ocellaris). A total of 19 fish specimens were collected. From the hosts, samples of intestine, liver, muscle, and parasites were taken. Heavy metal concentrations (Al, As, Ba, Cd, Cr, Fe, Hg, Mg, Mn, Ni, Pb, Ti, and Zn) were obtained using Atomic Absorption Spectrometry. All analyzed elements was found in higher concentrations in the parasites comparing to its host tissues. The bioconcentration factors were higher in the intestine, varying between 5.91 (Ti) to 8.00 (Ba), followed by the muscle, 1.88 (Mg) to 6.39 (Zn), and liver, 1.67 (Al) to 2.02 (Ba). These results show that at the infection site heavy metal concentrations are reduced, since the elements are absorbed directly from the intestinal wall by the parasites. In general, P. macrophallus presents a reasonable capacity of metal accumulation comparing to its hosts. (AU)

• Processo FAPESP: 17/00566-5 - Parasitos de peixes como bioindicadores de acumulação de metais pesados nos rios Jacaré-Pepira e Jacaré-Guaçú, Bacia Hidrográfica do Tietê-Jacaré, estado de São Paulo, Brasil
• Beneficiário: Lucas Aparecido Rosa Leite
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 16/21040-9 - Biodiversidade dos metazoários parasitos das espécies de peixes dominantes do reservatório da usina hidrelétrica de ibitinga e de seus dois principais afluentes, os rios jacaré-pepira e jacaré-guaçu, estado de são paulo, brasil.
• Beneficiário: Angela Mitie Otta Kinoshita
• Modalidade de apoio: Auxílio à Pesquisa - Regular