Temperature and precipitation shape the distribution of harmful cyanobacteria in subtropical lotic and lentic ecosystems

Haakonsson, Signe; Rodríguez-Gallego, Lorena; Somma, Andrea; Bonilla, Sylvia

doi:10.1016/j.scitotenv.2017.07.067

Cited by 68 publications

(32 citation statements)

References 53 publications

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“…Regarding the negative relationship between Microcystis abundance and the cumulative 7‐day precipitation (Table ), this result is supported by the study by Haakonsson, Rodríguez‐Gallego, Somma, and Bonilla () that found that species of the genus Microcystis showed a decrease in biovolume due to precipitation increase. The authors pointed out that the species of this genus are more sensitive to mixing or washout effects compared to filamentous cyanobacteria, for example.…”

Section: Discussionsupporting

confidence: 78%

Environmental factors driving the dominance of the harmful bloom‐forming cyanobacteria Microcystis and Aphanocapsa in a tropical water supply reservoir

Magalhães

Luz

Junior

2019

Water Environment Research

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Harmful cyanobacterial blooms in reservoirs have become a serious global issue for environmental health. However, dominance among different toxic cyanobacteria genera remains poorly understood, especially in tropical areas. We evaluated the influence of environmental factors, including total phosphorus, dissolved aluminum, water level, and precipitation on the change of the dominant genus from Microcystis to Aphanocapsa, in a hypereutrophic tropical reservoir, using 443 water samples over six years of field monitoring by applying generalized linear models (GLM). The results pointed out the prevalence of longer hydrologic retention time leading to enhanced water stability, and nutrients' accumulation into the hypolimnetic zones of the reservoir may have favored the ecophysiological advantages for the picocyanobacteria Aphanocapsa, which reached densities greater than 1 million/ml. In addition, this article also suggests that physical-chemical remediation methods applied for immobilizing phosphorus in the sediments of the reservoir may be low effective in limiting cyanobacterial growth. These findings are not only meaningful to the understanding of the dynamics of cyanobacterial genera but also to improve the management of eutrophic reservoirs in tropical regions. © 2019 Water Environment Federation • Practitioner points• We assessed cyanobacterial dominance changes based on 6-year field monitoring.• First article addressing the dominance of Aphanocapsa spp. in a tropical reservoir.• Species of Aphanocapsa responded better to hydrological changes in the reservoir.• The use of remediators was accompanied by an increase in cyanobacteria biomass.

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Section: Discussionsupporting

confidence: 78%

Environmental factors driving the dominance of the harmful bloom‐forming cyanobacteria Microcystis and Aphanocapsa in a tropical water supply reservoir

Magalhães

Luz

Junior

2019

Water Environment Research

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“…In eutrophic and hypereutrophic lakes, published evidence suggests nutrients and temperature interact synergistically to promote cyanobacteria (Rigosi et al, 2014). Extreme climate events, like changes in precipitation patterns, can also favour cyanoHABs in subtropical lakes (Haakonsson et al, 2017). In tropical regions, blooms are more frequent and persistent throughout the year, with higher biomass and toxic records (Bouvy et al, 2000;BittencourtOliveira et al, 2014), in contrast with temperate regions where cyanoHABs are restricted to shorter periods of the year, mainly in the summer (Ger et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Cyanobacterial blooms in freshwaters bodies in a semiarid region, northeastern Brazil: A review

2017

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Harmful cyanobacterial blooms have caused several problems in freshwater environments due to their prolific growth and the harmful cyanotoxins produced by some species. The occurrence of these organisms has increased in recent decades due to climate change and eutrophication, although most studies are from temperate regions in the Northern hemisphere. This review presents data about cyanobacteria occurrence, dominance, and toxicity events in freshwater bodies in a semiarid region of Northeast Brazil, in the tropical Southern hemisphere. We performed a literature survey of cyanobacteria publications from 1930 to 2016. We made a list of all the dominant species registered in each state, noted their distribution and occurrence of dominance events involving one or more species, and the registered records of toxic blooms, including information about the toxins involved and the range of values. We selected 102 publications that described cyanobacteria Accepted Article www.jlimnol.it occurrence from states in Northeast Brazil; these publications included relevant contributions regarding cyanobacteria distribution, richness, density, and biomass. Forty-nine dominant species were recorded, with the most representation found in the state of Pernambuco (30 spp.). The genera with the highest occurrences were Microcystis, Cylindrospermopsis, Planktothrix, Dolichospermum (=Anabaena), and Geitlerinema, especially the species Cylindrospermopsis raciborskii, Microcystis aeruginosa, and Planktothrix agardhii. Episodes of toxic blooms were observed in four states. Microcystins, cylindrospermopsin, saxitoxins, and anatoxin-a(S) were found to be associated with these blooms. In Northeast Brazil, harmful cyanobacterial blooms are common in urban and public reservoirs. However, in recent years, cyanobacterial blooms in this region have been more intense and perennial, with high biomass occurring throughout the year.

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“…En ellos, el agua enriquecida en nutrientes que corre en los ríos es retenida, generando condiciones que favorecen la acumulación de cianobacterias de gran tamaño y la ocurrencia de floraciones (Wang, et al, 2018). En estas condiciones, las cianobacterias del CMA son las más frecuentes (Reynolds, et al, 2002;Debastiani, et al, 2016;Haakonsson, et al, 2017;Adloff, et al, 2018;González-Piana, et al, 2017). Esto transforma a los embalses en fuentes potenciales de cianobacterias, que en condiciones de lluvias muy intensas pueden ser transportadas aguas abajo, distribuyendo las grandes biomasas o inoculando nuevos ecosistemas (Anderson, et al, 2018).…”

Section: Cuenca Del Plata: Floraciones Usos De Suelo Embalsesunclassified

“…: Dolichospermum) son más frecuentes en cuerpos de agua someros y más pequeños, así como en ambientes lóticos (ej. : Bonilla, et al, 2015;Haakonsson, et al, 2017;Pacheco, et al, 2010;Crisci, et al, 2017). Floraciones de cianobacterias filamentosas también han sido observadas en Salto Grande, pero en mucho menor proporción (Bordet, et al, 2017).…”

Section: Causas De Las Floraciones: Origen Alóctono Por Aportes Desdeunclassified

Floración excepcional de cianobacterias tóxicas en la costa de Uruguay, verano 2019

Kruk¹,

Martínez

Escalera

et al. 2019

INNOTEC

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KruK, Carla (1,2); Martínez, ana (3); Martínez de la esCalera, Gabriela (4); trinChin, roMina (5); Manta, Gastón (5); seGura, anGel M. (6); PiCCini, Claudia (4); brena, beatriz (7); Fabiano, GraCiela (3,8); Pirez, MaCarena (9); Gabito, lourdes (2); alCántara, iGnaCio (2); YanniCelli, beatriz (2) (1) instituto de eColoGía Y CienCias aMbientales, FaCultad de CienCias, udelar, Montevideo, uruGuaY (2) eColoGía FunCional de sisteMas aCuátiCos, Centro universitario reGional del este (Cure), udelar, roCha, uruGuaY. (3) direCCión naCional de reCursos aCuátiCos, la PaloMa, MGaP, roCha, uruGuaY. (4) dePartaMento de MiCrobioloGía, instituto de investiGaCiones biolóGiCas CleMente estable, MeC, Montevideo, uruGuaY,

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Temperature and precipitation shape the distribution of harmful cyanobacteria in subtropical lotic and lentic ecosystems

Cited by 68 publications

References 53 publications

Environmental factors driving the dominance of the harmful bloom‐forming cyanobacteria Microcystis and Aphanocapsa in a tropical water supply reservoir

Environmental factors driving the dominance of the harmful bloom‐forming cyanobacteria Microcystis and Aphanocapsa in a tropical water supply reservoir

Cyanobacterial blooms in freshwaters bodies in a semiarid region, northeastern Brazil: A review

Floración excepcional de cianobacterias tóxicas en la costa de Uruguay, verano 2019

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