Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Iheringia. Série Botânica |
Texto Completo: | https://isb.emnuvens.com.br/iheringia/article/view/854 |
Resumo: | A dense perennial bloom of Raphidiopsis raciborskii was observed in an urban lake (29°53’13”S and 51°09’29.9”W). Due to supposed toxicity, this study analyzed the morphology of the species, evaluated the main factors that influence its growth, and examined bloom toxicity. Two sites were sampled monthly from November 2009 to November 2010. The species was found in all samples and dominated in 77% of the samples. Highest density was recorded at the end of summer (March – 199,550 ind.mL-1) at 26.6 ºC and pH 7.8. High densities were also found at low temperatures (72,145 ind.mL-1 at 12.6 °C and 130,475 ind.mL-1 at 14.5 °C) and at minimum (5.4) and maximum (8.7) pH, reaching 89,964 ind.mL-1 and 61,400 ind.mL-1, respectively. Nitrogen availability was high, especially ammonium [(60-)140-660 μg.L-1], and phosphorus was low (orthophosphate < 10 μg.L-1). These results support that R. raciborskii has a wide tolerance to abiotic variations. Saxitoxins and gonyautoxins were found in the bloom |
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Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazilcyanobacterial bloomCylindrospermopsis raciborskiineurotoxins.A dense perennial bloom of Raphidiopsis raciborskii was observed in an urban lake (29°53’13”S and 51°09’29.9”W). Due to supposed toxicity, this study analyzed the morphology of the species, evaluated the main factors that influence its growth, and examined bloom toxicity. Two sites were sampled monthly from November 2009 to November 2010. The species was found in all samples and dominated in 77% of the samples. Highest density was recorded at the end of summer (March – 199,550 ind.mL-1) at 26.6 ºC and pH 7.8. High densities were also found at low temperatures (72,145 ind.mL-1 at 12.6 °C and 130,475 ind.mL-1 at 14.5 °C) and at minimum (5.4) and maximum (8.7) pH, reaching 89,964 ind.mL-1 and 61,400 ind.mL-1, respectively. Nitrogen availability was high, especially ammonium [(60-)140-660 μg.L-1], and phosphorus was low (orthophosphate < 10 μg.L-1). These results support that R. raciborskii has a wide tolerance to abiotic variations. Saxitoxins and gonyautoxins were found in the bloomIheringia. Série Botânica.Iheringia, Série Botânica.2020-10-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://isb.emnuvens.com.br/iheringia/article/view/85410.21826/2446-82312020v75e2020018Iheringia. Série Botânica.; Vol. 75 (2020)Iheringia, Série Botânica.; v. 75 (2020)2446-82310073-4705reponame:Iheringia. Série Botânicainstname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)instacron:FZB/RSenghttps://isb.emnuvens.com.br/iheringia/article/view/854/507Copyright (c) 2020 Iheringia. Série Botânica.info:eu-repo/semantics/openAccessWerner, Vera ReginaTucci, Andréada Silva, Lisangela MarquesYunes, João SarkisNeuhaus, Emanuel BrunoBerthold, David E.Laughinghouse IV, H. Dail2021-01-25T20:36:24Zoai:ojs.emnuvens.com.br:article/854Revistahttps://isb.emnuvens.com.br/iheringiaONGhttps://isb.emnuvens.com.br/iheringia/oai||iheringia-bot@fzb.rs.gov.br2446-82310073-4705opendoar:2021-01-25T20:36:24Iheringia. Série Botânica - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)false |
dc.title.none.fl_str_mv |
Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil |
title |
Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil |
spellingShingle |
Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil Werner, Vera Regina cyanobacterial bloom Cylindrospermopsis raciborskii neurotoxins. |
title_short |
Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil |
title_full |
Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil |
title_fullStr |
Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil |
title_full_unstemmed |
Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil |
title_sort |
Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil |
author |
Werner, Vera Regina |
author_facet |
Werner, Vera Regina Tucci, Andréa da Silva, Lisangela Marques Yunes, João Sarkis Neuhaus, Emanuel Bruno Berthold, David E. Laughinghouse IV, H. Dail |
author_role |
author |
author2 |
Tucci, Andréa da Silva, Lisangela Marques Yunes, João Sarkis Neuhaus, Emanuel Bruno Berthold, David E. Laughinghouse IV, H. Dail |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Werner, Vera Regina Tucci, Andréa da Silva, Lisangela Marques Yunes, João Sarkis Neuhaus, Emanuel Bruno Berthold, David E. Laughinghouse IV, H. Dail |
dc.subject.por.fl_str_mv |
cyanobacterial bloom Cylindrospermopsis raciborskii neurotoxins. |
topic |
cyanobacterial bloom Cylindrospermopsis raciborskii neurotoxins. |
description |
A dense perennial bloom of Raphidiopsis raciborskii was observed in an urban lake (29°53’13”S and 51°09’29.9”W). Due to supposed toxicity, this study analyzed the morphology of the species, evaluated the main factors that influence its growth, and examined bloom toxicity. Two sites were sampled monthly from November 2009 to November 2010. The species was found in all samples and dominated in 77% of the samples. Highest density was recorded at the end of summer (March – 199,550 ind.mL-1) at 26.6 ºC and pH 7.8. High densities were also found at low temperatures (72,145 ind.mL-1 at 12.6 °C and 130,475 ind.mL-1 at 14.5 °C) and at minimum (5.4) and maximum (8.7) pH, reaching 89,964 ind.mL-1 and 61,400 ind.mL-1, respectively. Nitrogen availability was high, especially ammonium [(60-)140-660 μg.L-1], and phosphorus was low (orthophosphate < 10 μg.L-1). These results support that R. raciborskii has a wide tolerance to abiotic variations. Saxitoxins and gonyautoxins were found in the bloom |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://isb.emnuvens.com.br/iheringia/article/view/854 10.21826/2446-82312020v75e2020018 |
url |
https://isb.emnuvens.com.br/iheringia/article/view/854 |
identifier_str_mv |
10.21826/2446-82312020v75e2020018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://isb.emnuvens.com.br/iheringia/article/view/854/507 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Iheringia. Série Botânica. info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Iheringia. Série Botânica. |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Iheringia. Série Botânica. Iheringia, Série Botânica. |
publisher.none.fl_str_mv |
Iheringia. Série Botânica. Iheringia, Série Botânica. |
dc.source.none.fl_str_mv |
Iheringia. Série Botânica.; Vol. 75 (2020) Iheringia, Série Botânica.; v. 75 (2020) 2446-8231 0073-4705 reponame:Iheringia. Série Botânica instname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) instacron:FZB/RS |
instname_str |
Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) |
instacron_str |
FZB/RS |
institution |
FZB/RS |
reponame_str |
Iheringia. Série Botânica |
collection |
Iheringia. Série Botânica |
repository.name.fl_str_mv |
Iheringia. Série Botânica - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) |
repository.mail.fl_str_mv |
||iheringia-bot@fzb.rs.gov.br |
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1798948136275673088 |