Invasion of the dinoflagellate Ceratium furcoides (Levander) Langhans 1925 at tropical reservoir and its relation to environmental variables

Silva, Lidiane Cristina da; Leone, Isabela Carnielli; Santos-Wisniewski, Maria José dos; Peret, Alberto Carvalho

doi:10.1590/s1676-06032012000200010

Cited by 42 publications

(62 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition, C. furcoides cell counts were high compared with Brazilian records of counts that were typically below 30 ind•mL -1 (Santos-Wisniewski et al, 2007;Silva et al, 2012;Cavalcante et al, 2013).…”

Section: Discussionmentioning

confidence: 79%

“…Determinations are made under the Guidelines of the World Health Organization (WHO, 2011), which defines the limit for microcystin-LR as 1 μg•L -1 . In addition to cyanobacterial blooms, blooms of Ceratium Schrank have occurred in tropical fresh waters in Brazil (Santos-Wisniewski et al, 2007;Matsumura-Tundisi et al, 2010;Silva et al, 2012;Cavalcante et al, 2013). Although there is no documented production of toxins by this dinoflagellate, blooms of Ceratium have been related to decreased water quality (Hart and Wagg, 2009;Ewerts et al, 2013) and water treatment efficacy, reducing coagulation, sedimentation and longevity of the filters (Ewerts et al, 2013;Van der Walt, 2011).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The effectiveness of conventional water treatment in removing Ceratium furcoides (Levander) Langhans, Microcystis sp. and microcystins

Almeida

Spiandorello²,

Giroldo

et al. 2016

WSA

View full text Add to dashboard Cite

Algal blooms are a global problem due to various negative effects that can compromise water quality, such as the production of metabolites that are responsible for odour, colour, taste and toxins. In drinking water supplies algae can reduce the aesthetics of potable water when not readily removed by conventional water treatment processes. One of the major challenges in water treatment is the removal of cells without leading to lysis and the consequent release of dissolved metabolites in the water. The Maestra Reservoir, which is located in Caxias do Sul, RS -Brazil, is a small meso-to supereutrophic reservoir. The reservoir provides water for the Celeste Gobatto water treatment plant (Celeste Gobatto WTP) which uses the conventional method of treatment. This study aimed to evaluate the efficacy of conventional water treatment for the removal of algae, cyanobacteria and cyanotoxins. A bloom of Microcystis (Kützing) ex Lemmermann with a density of 23 163 cells•mL -1 , Ceratium furcoides (Levander) Langhans, (5 356 cells•mL -1 ) and a microcystin concentration of 1.97 μg•L -1 was found in the raw water reservoir. Samples sites were assigned the following numbers: (1) raw reservoir water; (2) WTP entry; (3) after sedimentation; (4) filtered water; and (5) treated water. Cell removal was evaluated by cell counting conducted with an inverted microscope, chlorophyll-a by a colorimetric method and microcystin by an enzyme immunoassay kit. Conventional water treatment was effective in removing chlorophyll-a, Microcystis sp. and Ceratium furcoides, mainly in the early treatment steps. Microcystin persisted until the last treatment step, when approximately 50% of the microcystin that had arrived at the WTP was removed by disinfection. Removal of these taxa and toxin was above 98%. Despite the efficacy of Ceratium furcoides removal, the presence of this dinoflagellate in treated water is considered to be large because of its large size.

show abstract

Section: Discussionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

The effectiveness of conventional water treatment in removing Ceratium furcoides (Levander) Langhans, Microcystis sp. and microcystins

Almeida

Spiandorello²,

Giroldo

et al. 2016

WSA

View full text Add to dashboard Cite

show abstract

“…Since then several records of the occurrence of this dinoflagellate in many Brazilian aquatic ecosystems were published (SantosWisniewski et al, 2007;Matsumura-Tundisi et al, 2010;Oliveira et al, 2011;Severiano et al, 2012;Silva et al, 2012. To our knowledge, this is the first time that the occurrence of Ceratium furcoides is reported in a highaltitude natural, shallow, temporary lake in Brazil.…”

Section: Introductionmentioning

confidence: 73%

First record of Ceratium furcoides (Dinophyta), an invasive species, in a temporary high-altitude lake in the Iron Quadrangle (MG, Southeast Brazil)

et al. 2015

View full text Add to dashboard Cite

Dinoflagellates of the genus Ceratium are generally marine organisms, but rare occurrences in freshwater have been observed in Brazil. In this paper we are recording for the first time the presence of Ceratium furcoides, an invasive species, in a shallow, natural intermittent pool formed at a high-altitude at the southern end of the Iron Quadrangle, an iron-mining district of Minas Gerais State (Southeast Brazil). Samples were collected in October and November of 2010 (rainy period). The population density of this organism observed in Lagoa Seca ("Dry Pool") was very low, at most 4 ind L -1. Mountain lakes are extremely vulnerable to atmospheric deposition of organisms, making them valuable witnesses both of the many forms of impact arising from human activities and of the extended global connections that facilitate the dispersion and introduction of new species over great distances. Studies on the population dynamics of C. furcoides in natural tropical systems are still rare and very recent to the brazilian scenario and hence the monitoring of its dynamics and the potential impact on aquatic communities of its becoming established are essential to an understanding of the process of bioinvasion by this species.Keywords: bioinvasion, dinoflagellate, Ceratium furcoides, high-altitude lake, Minas Gerais. Primeiro registro de Ceratium furcoides (Dinophyta), uma espécie invasora, em um lago temporário de alta altitude no Quadrilátero Ferrífero (MG, Sudeste do Brasil) ResumoDinoflagelados do gênero Ceratium são principalmente marinhos, porém existem raras ocorrências em água doce no Brasil. Neste estudo registramos pela primeira vez a ocorrência de Ceratium furcoides, uma espécie invasora em um lago altitudinal natural raso localizado na porção sul do Quadrilátero Ferrífero, uma área de extração mineral no estado de Minas Gerais. As coletas foram realizadas nos meses de outubro e novembro de 2010 (período chuvoso).As densidades observadas para C. furcoides na Lagoa Seca foram muito baixas, com máximo de 4 ind L -1 . Lagos de altitude são altamente vulneráveis à deposição atmosférica, o que os torna importantes testemunhos não só dos múltiplos impactos derivados de atividades humanas, mas também das extensas conexões globais, que acabam por facilitar a dispersão e introdução de espécies. Estudos sobre a dinâmica de C. furcoides em sistemas tropicais naturais ainda são escassos e por isso, o monitoramento de sua dinâmica e dos impactos potenciais em comunidades aquáticas a partir do seu estabelecimento, torna-se fundamental para o entendimento dos processos relacionados à bioinvasão desta espécie.Palavras-chave: bioinvasão, dinoflagelado, Ceratium furcoides, lago de alta altitude, Minas Gerais.

show abstract

“…Ceratium Schrank is dinoflagellate genus commonly found in marine environments, and considered invasive in continental waters (Silva et al, 2012). Species of this genus are able to develop blooms due to their mobility and resistance to sedimentation, to the occupation of the surface layer and optimised use of resources such as light and nutrients (Donagh et al, 2005).…”

Section: First Record Of a Bloom Of The Invasive Speciesmentioning

confidence: 99%

First record of a bloom of the invasive species Ceratium furcoides (Levander) Langhans 1925 in Rio Grande do Sul state, Brazil

et al. 2014

View full text Add to dashboard Cite

Invasion of the dinoflagellate Ceratium furcoides (Levander) Langhans 1925 at tropical reservoir and its relation to environmental variables

Cited by 42 publications

References 11 publications

The effectiveness of conventional water treatment in removing <i>Ceratium furcoides</i> (Levander) Langhans, <i>Microcystis</i> sp. and microcystins

The effectiveness of conventional water treatment in removing <i>Ceratium furcoides</i> (Levander) Langhans, <i>Microcystis</i> sp. and microcystins

First record of Ceratium furcoides (Dinophyta), an invasive species, in a temporary high-altitude lake in the Iron Quadrangle (MG, Southeast Brazil)

First record of a bloom of the invasive species Ceratium furcoides (Levander) Langhans 1925 in Rio Grande do Sul state, Brazil

Contact Info

Product

Resources

About