| Author | Ferrão Filho, Aloysio da Silva | |
| Author | Soares, Maria Carolina Silva | |
| Author | Magalhães, Valéria de Freitas | |
| Author | Azevedo, Sandra Maria Feliciano de Oliveira e | |
| Access date | 2017-08-17T15:55:35Z | |
| Available date | 2017-08-17T15:55:35Z | |
| Document date | 2009 | |
| Citation | FERRÃO FILHO, Aloysio da Silva et al. Biomonitoring of cyanotoxins in two tropical reservoirs by cladoceran toxicity bioassays. Ecotoxicology and Environmental Safety, v. 72, n. 2, p. 479-489, Feb. 2009. | |
| ISSN | 0147-6513 | |
| URI | https://www.arca.fiocruz.br/handle/icict/20666 | |
| Description | Produção científica do Laboratório de Avaliação e Promoção da Saúde Ambiental. | pt_BR |
| Language | eng | en_US |
| Publisher | Elsevier | |
| Rights | restricted access | |
| Subject in Portuguese | Cianobactérias | pt_BR |
| Subject in Portuguese | Zooplancton | pt_BR |
| Subject in Portuguese | Cladocera | pt_BR |
| Subject in Portuguese | Cianotoxinas | pt_BR |
| Subject in Portuguese | Bioensaio de toxicidade | pt_BR |
| Title | Biomonitoring of cyanotoxins in two tropical reservoirs by cladoceran toxicity bioassays | en_US |
| Type | Article | |
| DOI | 10.1016/j.ecoenv.2008.02.002 | |
| Abstract | This study evaluates the potential for the use of cladocerans in biomonitoring of cyanobacterial toxins. Two zooplankton species (Daphnia gessneri and Moina micrura) were cultivated in the laboratory for use in acute (48 h) and chronic (10 days) bioassays. Water samples were collected from two reservoirs and diluted in mineral water at four concentrations. Survivorship in the acute bioassays was used to calculate LC50, and survivorship and fecundity in chronic bioassays were used to calculate the intrinsic population growth rate (r) and the EC50. Analysis of phytoplankton in the water samples from one reservoir revealed that cyanobacteria were the dominant group, represented by the genera Anabaena, Cylindrospermopsis, and Microcystis. Results of bioassays showed adverse effects including death, paralysis, and reduced population growth rate, generally proportional to the reservoir water concentration. These effects may be related to the presence of cyanobacteria toxins (microcystins or saxitoxins) in the water. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Laboratório de Avaliação e Promoção da Saúde Ambiental. Rio de Janeiro, RJ, Brasil. | |
| Affilliation | Universidade Federal do Rio de Janeiro. Fórum de Ciência e Cultura. Museu Nacional. Departamento de Botânica. Rio de Janeiro, RJ, Brasil. | |
| Affilliation | Universidade Federal do Rio de Janeiro. Centro de Ciências da Saúde. Instituto de Biofísica Carlos Chagas Filho. Rio de Janeiro, RJ, Brasil. | |
| Affilliation | Universidade Federal do Rio de Janeiro. Centro de Ciências da Saúde. Instituto de Biofísica Carlos Chagas Filho. Rio de Janeiro, RJ, Brasil. | |
| Subject | Cyanobacteria | en_US |
| Subject | Cyanotoxins | en_US |
| Subject | Zooplankton | en_US |
| Subject | Cladocera | en_US |
| Subject | Seston | en_US |
| Subject | Toxicity bioassay | en_US |
| Embargo date | 2030-01-01 | |
