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	Provedor de dados Acta Botanica (2) Biota Neotropica (1) Autor Cavalcante,Kaoli Pereira (3) Ludwig,Thelma Alvim Veiga (2) Tremarin,Priscila Izabel (2) Cardoso,Luciana de Souza (1) Medeiros,Caroline Modena de (1) Silva,Luiza Nicoleite da (1) Wojciechowski,Juliana (1) de Azevedo Tibiriçá,Carlos Eduardo Junqueira (1) de Castro,Emanuela Cristina (1) Mais... Palavra-chave Bahia (1) Coscinodiscophyceae (1) Diatom (1) Dinoflagellate (1) Eunotiaceae (1) Freshwater (1) Invasive species (1) Lotic systems (1) Mediophyceae (1) Periphyton (1) River (1) Shallow lake (1) Southern Brazil (1) Subtropical (1) Taxonomy (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2019 (1) 2014 (1) 2013 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Taxonomic studies of centric diatoms (Diatomeae): unusual nanoplanktonic forms and new records for Brazil Acta Botanica Cavalcante,Kaoli Pereira; Tremarin,Priscila Izabel; Ludwig,Thelma Alvim Veiga. There have been few taxonomic studies of centric diatoms in lotic freshwater environments in Brazil, especially in terms of those including nanoplanktonic forms, which are often neglected in studies of local floras, because of their small size or confusing taxonomy. This is the first study focusing on centric diatoms in the flora of the state of Bahia, in northeastern Brazil. Plankton and periphyton attached to Eichornia crassipes were collected in the winter of 2009 in the Cachoeira River. The diatoms were analyzed and described under light and electron microscopies. Seventeen infrageneric taxa were identified. Cyclotella was represented by five taxa, and concerning of similarities between diacritical features of species in this genus, their descriptions... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bahia; Coscinodiscophyceae; Freshwater; Mediophyceae; River. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000200001 Invasion and establishment of Ceratium furcoides (Dinophyceae) in an urban lake in Porto Alegre, RS, Brazil Acta Botanica Silva,Luiza Nicoleite da; Medeiros,Caroline Modena de; Cavalcante,Kaoli Pereira; Cardoso,Luciana de Souza. ABSTRACT Ceratium furcoides has received attention due its invasive behavior in South America and consequent alterations in local phytoplankton communities. Pedalinhos Lake had been dominated by chlorophytes until 2015, when the first occurrence of this dinoflagellate was detected. In order to investigate the colonization process of this species, we monitored the meteorological variables and phytoplankton abundance of this urban lake on a weekly basis from September 2015 to September 2018. At the beginning of the invasion process (Year 1), a peak density of 10,170 ind.mL-1 was recorded, with a significant decrease to 23 ind.mL-1, indicating an initial, unstable process of adaptation, with notable oscillation and reduction of cyanobacterial blooms. At this... Tipo: Info:eu-repo/semantics/article Palavras-chave: Dinoflagellate; Invasive species; Shallow lake; Subtropical; Southern Brazil. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400654 Epiphytic Eunotia (Bacillariophyceae) on Podostemum from Santa Catarina, southern Brazil, including new observations on morphology and taxonomy of some rare recorded species Biota Neotropica Cavalcante,Kaoli Pereira; Tremarin,Priscila Izabel; de Castro,Emanuela Cristina; de Azevedo Tibiriçá,Carlos Eduardo Junqueira; Wojciechowski,Juliana; Ludwig,Thelma Alvim Veiga. Eunotia is a highly diverse diatom genus in the Neotropics. Considerable morphological variability of the valve showed in several species of the genus resulted in a quite confused taxonomy. Twelve Eunotiataxa attached to Podostemum spp. were investigated using the light microscopy (LM). Additionally, scanning electron microscopy (SEM) was used in order to investigate the fine morphology of most abundant taxa. Samples were collected from four rivers from the State of Santa Catarina between March 2009 and July 2010. The freshwater diatom flora from this south Brazilian state is poorly known in relation to its neighboring states. Eunotia biseriatoides has intermediate features betweenEunotia and Perinotia, and the circumscription of these genera is discussed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diatom; Eunotiaceae; Lotic systems; Periphyton; Taxonomy. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300119 Registros recuperados: 3 Primeira ... 1 ... Última

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