Microcystin contamination in fish from the Jacarepaguá Lagoon (Rio de Janeiro, Brazil): ecological implication and human health risk

Magalhães, Valéria Freitas de; Soares, Raquel; Azevedo, Sandra M.F.O.

doi:10.1016/s0041-0101(00)00251-8

Cited by 301 publications

(62 citation statements)

References 20 publications

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“…Furthermore, long-term exposure to MCs in the field environment is expected to have adverse effects on the detoxification capabilities of aquatic organisms . The concentration of accumulated toxins in the present study is similar to those in the previous reports (Eriksson et al, 1989;Vasconcelos, 1995;de Magalhã es, et al, 2001;Soares et al, 2004;Chen and Xie, 2005).…”

Section: Article In Presssupporting

confidence: 92%

Distribution and bioaccumulation of microcystins in water columns: A systematic investigation into the environmental fate and the risks associated with microcystins in Meiliang Bay, Lake Taihu

et al. 2007

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Section: Article In Presssupporting

confidence: 92%

Distribution and bioaccumulation of microcystins in water columns: A systematic investigation into the environmental fate and the risks associated with microcystins in Meiliang Bay, Lake Taihu

et al. 2007

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“…Fewer investigations have focused on the risks related to the consumption of aquatic animals. The majority of previous studies on toxin accumulations in aquatic animals were of toxicological concern with the main objectives of determining the target organ in aquatic organisms (Williams et al, 1995;Magalhães et al, 2001;Li et al, 2004;Soares et al, 2004;Xie et al, 2004;Saqrane et al, 2007;Deblois et al, 2008). Our previous studies found potential health risks exist for those consuming aquatic species (snail, fish, mussel and shrimp) harvested from Lake Taihu (Song et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…Our previous studies found potential health risks exist for those consuming aquatic species (snail, fish, mussel and shrimp) harvested from Lake Taihu (Song et al, 2007). Other investigations of toxin accumulations in one species or two species have been completed (Bury et al, 1998;Magalhães et al, 2001;Chen and Xie, 2005). To avoid or reduce the health risks associated with the consumption of aquatic products, it is crucial to learn the toxin-contamination status of the major fish and shellfish species harvested from the eutrophicated lakes during fisheries catch seasons.…”

Section: Discussionmentioning

confidence: 99%

Health risks associated with consumption of microcystin-contaminated fish and shellfish in three Chinese lakes: Significance for freshwater aquacultures

Peng

Liu

Chen

et al. 2010

Ecotoxicology and Environmental Safety

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“…Lagoon eutrophication has been documented as an effect of human population growth in urban centers with a deficient domestic effluent treatment system, provoking environmental impacts including: anoxia and hypoxia (SMITH et al, 2000;RABALAIS et al, 2009RABALAIS et al, , 2010 proliferation of toxic algae and death of aquatic organisms (WITEK;PLINSKI, 2000;FAUST;GULLEDGE, 2002;HEILEMAN;ROSSI-WONGTSCHOWSKI, 2004;GLIBERT et al, 2005) loss of batheability and increased waterborne diseases (FREITAS DE MAGALHÃES et al, 2001;LORENZZETTI, 2001;RODRIGUES et al, 2016); reduction of biodiversity (BRICKER et al, 1999;CLOERN, 2001;GLIBERT et al, 2010). These impacts are found in various Brazilian lagoons (SMITH et al, 2000;SANTORO;ENRICH-PRAST, 2012;COTOVICZ, 2013), including Lagoa da Conceição as reported in the present study.…”

Section: Efects Of Eutrophication On the Biogeochemical Cyclesmentioning

confidence: 99%

Space time evolution of the trophic state of a subtropical lagoon: Lagoa da Conceição, Florianópolis Island of Santa Catarina, Brazil

Silva

Franco

Fonseca

et al. 2017

RBRH

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High levels of eutrophication in coastal lagoons due to human activity have been documented worldwide. Among the main impacts observed are anoxia, hypoxia, toxic algal blooms, fish kills, loss of biodiversity and loss of bathing. This study aimed to evaluate the evolution of the trophic state of Lagoa da Conceição, a subtropical lagoon located in an urbanized watershed on the island of Santa Catarina -Brazil. Spatio temporal patterns of stratification and eutrophication were investigated to understand the main biochemical changes over time. The water quality data were obtained from field campaigns supplemented with literature of the last 15 years. The vertical structure of the water column and the trophic state were evaluated by the stratification index and the TRIX index, respectively. Analyses of variance were performed in order to identify possible temporal variations in vertical stratification and trophic level. Eutrophication effects on biogeochemical cycles were verified through a multi-dimensional cluster analysis (MDS) and correlations between variables related to physical, chemical and biological processes were verified by principal component analysis (PCA). The results showed that the water column is homogeneous in all regions except in the central region of the lagoon, and the highest ammonia concentrations and lowest dissolved oxygen concentrations with periods of anoxia are observed in bottom waters. The study looked at the high trophic level of the lagoon and its inability to process the biogeochemical changes imposed by urban development.Keywords: TRIX; Coastal lagoons; Stratification; Hypoxia; Biogeochemical cycles. RESUMONíveis elevados de eutrofização em lagunas costeiras devido à atividade antrópica têm sido documentados no mundo inteiro. Dentre os impactos observados pode-se destacar anoxia, hipoxia, floração de algas tóxicas, mortalidade de peixes, redução da biodiversidade e perda da balneabilidade. O presente estudo teve por objetivo avaliar a evolução do estado trófico da Lagoa da Conceição, uma laguna subtropical localizada em uma bacia hidrográfica urbanizada na Ilha de Santa Catarina -Brasil. Para compreender as principais modificações biogeoquímicas ao longo do tempo foram investigados os padrões espaço-temporais da estratificação e da eutrofização. Os dados de qualidade da água foram obtidos a partir de campanhas de campo complementados com dados da literatura dos últimos 15 anos. A estrutura vertical da coluna da água e o estado trófico foram avaliados pelo o índice de estratificação e o índice TRIX, respectivamente. Análises de variância foram realizadas com o objetivo de identificar possíveis variações temporais na estratificação vertical e no nível trófico. Efeitos da eutrofização nos ciclos biogeoquímicos foram verificados através de uma análise de agrupamento multidimensional (MDS) e correlações entre as variáveis relacionadas a processos físico-químicos e biológicos foram verificadas através da análise de componentes principais (PCA). Os resultados mostraram que há hom...

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Microcystin contamination in fish from the Jacarepaguá Lagoon (Rio de Janeiro, Brazil): ecological implication and human health risk

Cited by 301 publications

References 20 publications

Distribution and bioaccumulation of microcystins in water columns: A systematic investigation into the environmental fate and the risks associated with microcystins in Meiliang Bay, Lake Taihu

Distribution and bioaccumulation of microcystins in water columns: A systematic investigation into the environmental fate and the risks associated with microcystins in Meiliang Bay, Lake Taihu

Health risks associated with consumption of microcystin-contaminated fish and shellfish in three Chinese lakes: Significance for freshwater aquacultures

Space time evolution of the trophic state of a subtropical lagoon: Lagoa da Conceição, Florianópolis Island of Santa Catarina, Brazil

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