Proteocephalus macrophallus (Cestoda: Proteocephalidae) Infecting Cichla kelberi (Cichliformes: Cichlidae) as a Bioindicator for Trace Metal Accumulation in a Neotropical River from Southeastern Brazil

Autor: Rodney Kozlowiski de Azevedo, Vanessa Doro Abdallah, Lucas Aparecido Rosa Leite, Walter dos Reis Pedreira Filho
Přispěvatelé: Universidade Estadual Paulista (UNESP), Centro Técnico Nacional (CTN), Programa de Pós-Graduação Em Análise de Sistemas Ambientais, Universidade Federal de Alagoas (UFAL)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Made available in DSpace on 2022-04-28T19:47:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-12-01 Here, we evaluate the potential for trace metal accumulation of nine elements (Al, Cr, Mn, Fe, Ni, Cu, As, Cd, and Pb) in the cestodes Proteocephalus macrophallus parasitizing the tucunaré, Cichla kelberi, in the Jacaré-Guaçú River, southeastern Brazil. For metal quantification in the tissues of hosts and parasites, an inductively coupled plasma–mass spectrometer (ICP-MS) was used. All recovered trace metals were in higher amounts in cestodes than in the tissues (muscle, intestine, and liver) of their hosts. The best accumulated element was lead, with concentrations up to 10,000 times higher in parasites than in the liver of the fish hosts. Other well-accumulated elements were cadmium, with concentrations up to 238 times higher in parasites, and aluminum and nickel, with concentrations ranging from 140 to 128 times higher in parasites. In addition, non-infected fish had higher concentrations of cadmium and lead in their tissues than infected fish. In infected fish, the size of the cestodes’ infrapopulations influenced in the concentrations of arsenic, cadmium, and lead in the hosts tissues. In general, specimens of P. macrophallus had a good capacity for metal accumulation for all the analyzed elements, with emphasis on Al, Ni, Cd, and Pb, and therefore could be a useful tool in trace metal bioaccumulation indication. Instituto de Biociências Universidade Estadual Paulista (UNESP), Campus de Botucatu Fundação Jorge Duprat de Medicina E Segurança Do Trabalho (FUNDACENTRO) Ministério da Economia (ME) Centro Técnico Nacional (CTN) Centro Universitário CESMAC Programa de Pós-Graduação Em Análise de Sistemas Ambientais Universidade Federal de Alagoas (UFAL), Setor de Parasitologia e Patologia Instituto de Biociências Universidade Estadual Paulista (UNESP), Campus de Botucatu
Databáze: OpenAIRE