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      Ceratium furcoides (Levander) Langhans: first record in Nova Avanhandava reservoir, Southeast Brazil Translated title: Ceratium furcoides (Levander) Langhans: primeiro registro no reservatório Nova Avanhandava, Sudeste do Brasil

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          Abstract

          ABSTRACT This is the first record of Ceratium furcoides in the Nova Avanhandava reservoir, São Paulo, whose samples were collected in three stations (S1, S2, S3) in March and October of the years 2015 and 2016. Physico-chemical analyzes of the water were performed. The reservoir was classified, according to the TSI, as mesotrophic. The first record of the species occurred in October 2015 at S3 and, the following year, the dispersion for the other stations was verified. The highest density of the species (28 org mL-1) was recorded in October 2016. Similar values were documented in Furnas (MG) and Ilha Solteira (SP). The low density values of C. furcoides and the presence of phytoplankton groups with higher densities (Cyanobacteria and Cryptophyceae) suggest that the colonization of the species is at an early stage. Thus, studies about dispersion, dynamics, and interaction of C. furcoides with phytoplankton and the potential impacts on aquatic communities are essential to understand the responses of this species to environmental conditions.

          Translated abstract

          RESUMO Trata-se do primeiro registro de Ceratium furcoides no reservatório Nova Avanhandava, São Paulo, cuja as amostras foram coletadas em três estações (E1, E2, E3) em março e outubro dos anos de 2015 e 2016. Análises físico-químicas da água foram realizadas. O reservatório foi classificado, de acordo com o cálculo do IET como mesotrófico. O primeiro registro da espécie ocorreu em outubro de 2015 na E3 e, no ano seguinte, verificou-se a dispersão para as outras estações. A maior densidade da espécie (28 org mL-1) foi registrada em outubro de 2016. Valores semelhantes foram documentados em Furnas (MG) e Ilha Solteira (SP). Os baixos valores de densidade de C. furcoides e a presença de grupos fitoplanctônicos com densidades superiores (Cyanobacteria e Cryptophyceae), sugerem que a colonização da espécie está no início. Assim, estudos sobre a dispersão, dinâmica e interação de C. furcoides com o fitoplâncton e os potenciais impactos sobre as comunidades aquáticas são essenciais para entender as respostas desta espécie às condições ambientais.

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          The simultaneous analysis of total nitrogen and total phosphorus in natural waters

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            Simultaneous determination of nitrate and nitrite by flow injection analysis

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              Predicting the number of ecologically harmful exotic species in an aquatic system

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                Author and article information

                Journal
                hoehnea
                Hoehnea
                Hoehnea
                Instituto de Botânica (São Paulo, SP, Brazil )
                0073-2877
                2236-8906
                2020
                : 47
                : e742019
                Affiliations
                [2] São Paulo São Paulo orgnameInstituto de Botânica orgdiv1Núcleo de Pesquisa em Ficologia Brazil
                Article
                S2236-89062020000100221 S2236-8906(20)04700000221
                10.1590/2236-8906-74/2019
                8e68ec4f-685f-422e-87d5-bdbad14d9b2b

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

                History
                : 01 July 2019
                : 07 May 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 47, Pages: 0
                Product

                SciELO Brazil

                Self URI: Full text available only in PDF format (EN)
                Categories
                Articles

                net cages,bioinvasão,estratégias adaptativas,mesotrófico,tanques-rede,adaptative strategies,bioinvasion,mesotrophic

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