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      Temporal occurrence of Ceratium furcoides (Dinophyceae: Ceratiaceae) during an extreme drought season in Pernambuco state, Northeast Brazil

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          Abstract

          Abstract Ceratium furcoides is an invasive species that has caused ecological imbalance in several reservoirs in Brazil. This study investigates the main factors that may favor the occurrence of Ceratium furcoides blooms in a tropical reservoir from the Northeast Brazil, during an extreme drought season. Samples containing phytoplankton were collected monthly from February to September 2017. Quantitative analysis of C. furcoides was performed and the cell volume was estimated using geometric formulas. Mean biovolume of C. furcoides showed significant differences, ranging from 0.78 mm3 L-1 to 11.29 mm3 L-1 reported in March and September, respectively. Environmental parameters presented low oscillation throughout the study, except the conductivity. Significant relationships among the C. furcoides biovolume, water temperature and soluble reactive phosphate were observed. The findings reported here suggest that adverse conditions caused by a drought season did not negatively affect this species.

          Translated abstract

          Resumo Ceratium furcoides é uma espécie invasora que tem causado desequilíbrio ecológico em vários reservatórios no Brasil. Este estudo investiga os principais fatores que podem favorecer a ocorrência de florações de C. furcoides em um reservatório tropical do Nordeste do Brasil, durante um período de seca extrema. Amostras contendo fitoplâncton foram coletadas mensalmente de fevereiro a setembro de 2017. Análises quantitativas de C. furcoides foram realizadas e o volume celular estimado por meio de fórmulas geométricas. O biovolume médio de C. furcoides apresentou diferenças significativas, variando de 0,78 mm3 L-1 a 11,29 mm3 L-1 relatado em março e setembro, respectivamente. Os parâmetros ambientais apresentaram baixa oscilação ao longo do estudo, exceto a condutividade. Relações significativas entre o biovolume de C. furcoides, temperatura da água e fosfato reativo solúvel foram observadas. Os resultados relatados aqui sugerem que as condições adversas causadas por uma estação de seca não afetam negativamente esta espécie.

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          Most cited references37

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          Mutualistic Interactions and Biological Invasions

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            What is a bloom? A commentary

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              Cultivation of microalgae species in tertiary municipal wastewater supplemented with CO2 for nutrient removal and biomass production

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                Author and article information

                Journal
                rod
                Rodriguésia
                Rodriguésia
                Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (Rio de Janeiro, RJ, Brazil )
                0370-6583
                2175-7860
                2021
                : 72
                : e00102019
                Affiliations
                [3] Maceió orgnameUniversidade Federal de Alagoas orgdiv1Inst. Ciências Biológicas e da Saúde orgdiv2Lab. Conservação e Manejo de Recursos Renováveis (LACOM) Brazil
                [1] Recife Pernambuco orgnameUniversidade Federal Rural de Pernambuco orgdiv1Depto. Pesca e Aquicultura orgdiv2Lab. Produção de Alimento Vivo (LAPAVI) Brazil
                [2] Serra Talhada orgnameUniversidade Federal Rural de Pernambuco orgdiv1Unidade Acadêmica de Serra Talhada orgdiv2Lab. Biotecnologia de Microalgas (LABIM) Brazil
                Article
                S2175-78602021000100233 S2175-7860(21)07200000233
                10.1590/2175-7860202172043
                5d435dc6-71a3-44b8-a1c2-cd14e2cd31be

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 21 January 2019
                : 01 May 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 37, Pages: 0
                Product

                SciELO Brazil

                Categories
                Original Papers

                reservatórios,bioinvasion,dinoflagellate blooms,drought season,phytoplankton,fitoplâncton,período de seca,reservoirs,bioinvasão,florações de dinoflagelados

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