Norma catarina Bueno

• Universidade Estadual Do Oeste Do Parana

This chapter is a critical review about the ecological niche dimensions of charophytes. It focuses on recent findings, revising the often-cited view of charophytes being clearwater-indicators in general. By tackling the mechanisms responsible for installation of stands, maintaining them as well as physiologigal features allowing growth under extrem...

Epilithic diatom species in eight sampling sites of the Cascavel River, Southern Brazil, were taxonomically analyzed. The studied streams are located in a predominantly urban micro-watershed, with distroferric red latosol (rich in Fe and Al), being characterized by distinct metals, predominantly acidic pH, and high conductivity. Overall, 221 diatom...

Aim Our goal was to relate the phytoplankton metacommunity to its possible determinants in a micro watershed: (I) determinants related to landscape-scale filtering, (II) determinants referring to local microhabitat filtering, (III) determinants referring to previous colonization, and (IV) determinants representing three different dispersal routes....

The presence of microscopic algae of the classes Chlorophyceae and Trebouxiophyceae in lotic environments stands out for its high morphologic diversity and its capacity to indicate the quality of the water. This study had the objective of accomplishing the taxonomic survey of rivers from the area of influence of Baixo Iguaçu’s hydroelectric power p...

Lotic environments are subjected to the impacts of human activities in an intense way in urban regions and one of the ways to assist in the environmental diagnosis is through the knowledge of the composition of bioindicator organisms, including microalgae. The objective of this work was to qualitatively characterize the Chlorophyceae Class Wille, p...

A presença de microalgas das classes Chlorophyceae e Trebouxiophyceae em ambientes lóticos se destaca por sua alta diversidade morfológica e sua capacidade de indicar a qualidade da água. Este trabalho objetivou realizar o levantamento taxonômico em rios da área de influência da Usina Hidrelétrica do Baixo Iguaçu. As amostragens mensais foram reali...

Associating anthropogenic effects with variations in biodiversity is key to understanding how anthropogenic impacts are extrapolated in public supply micro-watersheds. The structure and dynamics of metacommunities in aquatic environments depend not only on the river network itself, but on a multitude of factors. Therefore, we associate the density...

The application of environmental fragility in studies evaluating watersheds can guide policy decisions on monitoring and land use management, improving water quality for public supply. The aim of this study is to characterize the environmental fragility of public water supply watersheds and relate it to water quality factors. Physical, chemical, an...

Aim Urbanization, agriculture, and deforestation are the main anthropogenic factors that modify the soil, altering the quality of water, and influencing limnological aspects and the aquatic biota in rivers. We investigated the morphology-based taxonomic and functional response (MBFG) of the phytoplankton community among different public supply rive...

Information about species diversity, integration of local data, and the dynamics of regional diversity is essential for understanding the mechanisms that maintain diversity in biological communities, especially in aquatic environments, which have extensive connectivity. Here, we used phytoplankton community data from two subtropical reservoirs and...

A obra reúne a florística de microalgas de diferentes ambientes aquáticos continentais do Estado do Paraná e objetiva preencher a lacuna existente na literatura nacional sobre a diversidade de espécies dos grupos Bacillariophyta, Chlorophyta, Streptophyta e Euglenophyceae. Apresenta um contexto teórico comparando com as espécies similares, imagens...

Applying environmental fragility in studies evaluating watershed can guide policy decisions on monitoring and management regarding soil use planning, improving water quality for public supply. The objective of this study is to characterize the environmental fragility as well as to relate it to water quality factors of catchment rivers for public su...

Given the extreme importance of understanding biodiversity in the contemporary context, this study performed a taxonomic survey of planktonic green algae from a subtropical river in Paraná state, broadening knowledge of the group’s geographic distribution and the environmental conditions related to its occurrence. Monthly samplings of phytoplankton...

Abstract: During a survey on freshwater epilithic diatoms from subtropical lotic environments belonging to the Cascavel River microbasin, Paraná State, Brazil, we observed populations of a new Nupela Vyverman et Compère species. Morphological and meristic analyses were performed using light and scanning electron microscopy, resulting in the descrip...

Eunotia species from a stream located in the surrounding area of the Iguaçu National Park conservation unit were analyzed. Samples were monthly collected from September 2012 to August 2013. The periphytic material, manually obtained by squeezing aquatic macrophytes, was oxidized and analyzed under light and scanning electron microscopy. Twenty-one...

Aim In this study we check whether three simple environmental factors are good predictors of charophytes occurrence. Methods The Characeae material was sampled two times a year during the years of 2001, 2002 and 2003, over 235 sites distributed along eight rivers located in Itaipu, a large subtropical reservoir. While sampling the biological mater...

In this study we analyzed the dynamics of the phytoplankton community in two cascade reservoirs in six sampling periods, to investigate the influence of environmental filters on phytoplankton, and the community concordance with the environmental variability. We addressed several questions, and from phytoplankton biomass data and abiotic variables s...

We evaluated the response of diatom community relative to environmental changes with the aim of characterizing and comparing, along a linear gradient, three environments across the Cascavel River microbasin with distinct land-uses. In June 2016, 10 substrates were collected for periphyton extraction in locations with different land-uses (conservati...

A taxonomic survey was carried out of the genus Eunotia in the Hercílio River, state of Santa Catarina, southern Brazil. Trimestral collections were made (April, July and October 2009) at four sampling stations, totaling 12 samples. The survey of the genus Eunotia resulted in the identification of 30 taxa, four of which were determined at generic l...

A taxonomic survey was carried out on Coscinodiscophyceae and Fragilariophyceae found in the Iguaçu River catchment area within Iguaçu National Park, in the state of Paraná, Brazil. Between September 2007 and August 2008, we collected 24 samples from two stations on the Iguaçu River, upstream and downstream of the falls. We identified 37 taxa, incl...

This study investigated the enrichment influence due to fish farming in net cages on the phytoplankton composition, density and diversity in two arms of a subtropical reservoir (Salto Caxias, Paraná). There were no statistically significant differences in the phytoplankton composition and diversity, as well as for concentrations of nutrients among...

Zygnemaphyceae associated with Utricularia foliosa L. in Iguaçu National Park, Paraná, Brazil. This study aimed to know the Zygnemaphyceae species associated to Utricularia foliosa L., in an aquatic ecosystem within the Iguaçu National Park. Periphytic samples were collected monthly from the aquatic macrophyte U. foliosa between February 2010 and F...

The work aimed to show variations in the composition and structure of the phytoplankton community at high water and low water in Iguaçu Falls, Iguaçu River and to examine the influence of these waterfalls and environmental variables on the community. Phytoplankton samples were taken monthly during a year from two sampling stations in the Iguaçu Riv...

Th is study represents a taxonomic survey of class Bacillariophyceae diatoms found in samples collected in the Iguaçu River (Iguaçu National Park, municipality of Foz do Iguaçu, in the state of Paraná, Brazil) between August 2007 and July 2008. Two sampling stations were utilized, the fi rst located upstream of Iguaçu Falls (Cais Bananeiras Station...

This work is part of a survey of the desmid flora in a tributary of the Itaipu Reservoir, in the state of Paraná, Brazil. The objective was to expand the knowledge base regarding the genus Cosmarium (Desmidiaceae, Zygnematophyceae). We conducted a qualitative analysis of 60 samples of phytoplankton, which were collected from along the banks of the...

The limnological characteristics and the phytoplankton community of the pelagic region of the São João River, tributary of the Iguaçu River, Iguaçu National Park were analyzed from August 2008 to July 2009. 221 taxa were identified and the Bacillariophyceae class was the most representative. Bacillariophyceae and Chrysophyceae were the dominant cla...

This study represents a taxonomic survey of class Bacillariophyceae diatoms found in samples collected in the Iguaçu River (Iguaçu National Park, municipality of Foz do Iguaçu, in the state of Paraná, Brazil) between August 2007 and July 2008. Two sampling stations were utilized, the first located upstream of Iguaçu Falls (Cais Bananeiras Station)...

Even though the suitability of macrophytes to act as a carbon source to food webs has been questioned by some studies, some others indicate that macrophyte-derived carbon may play an important role in the trophic transfer of organic matter in the food web of shallow lakes. To evaluate the importance of macrophytes to food webs, we collected primary...

RESUMO: Pediculose é uma infestação causada pelo parasita Pediculus humanus capitis De Geer, conhecido popularmente como piolho. A doença é considerada um problema sério de saúde pública. Embora existam diversos tratamentos populares para a infestação, poucos estudos cientícos comprovam a ecácia dos tratamentos. A utilização de espécies vegetais...

The family Characeae, represented by two genera in Brazil, Chara and Nitella, is considered to include the closest living relatives of land plants, and its members play important ecological role in aquatic ecosystems. The present taxonomic survey of Chara and Nitella was performed in tributaries that join to form the Brazilian shore of the Itaipu R...

The first reference to the occurrence of Characeae in São Paulo state is Braun (1883). In this work, two species of Nitella are quoted: N. acuminata A. Braun var. subglomerata A. Braun and N. microcarpa A. Braun subsp. glaziovii (Zeller) Nordstedt f. santosa Nordstedt. Two other papers follow this regarding Characeae at species level, Edwall (1896)...

(Floristic composition of Desmidiales (except Cosmarium) on a Brazilian subtropical lake). The objective of this study was to observate of the desmids floristic composition, occupied habitat and occurrence in Paraná State. The biological material was collected in four sampling stations of the lake coast region. A total of 24 samples were collected...

Chlorococcales sensu lato (Chlorophyceae) of artificial urban lake, Parana, Brazil. The study aimed to know the biodiversity of Chlorococcales s. l. of Cascavel Municipal Lake, located in Parana state, Brazil, an important area for recreation, sport and tourism, besides being important for public water supply. The samples were collected at four sam...

The study aimed to know the biodiversity of Chlorococcales s. l. of Cascavel Municipal Lake, located in Parana state, Brazil, an important area for recreation, sport and tourism, besides being important for public water supply. The samples were collected at four sampling stations of the lake shore region, in the summer of 2007 and 2008, totaling 24...

Macrófitas aquáticas podem servir como indicadoras ambientais e são de grande importância no ambi ente aquático, servindo como habitat para diversos organismos, dentre eles as algas. Estudos e nvolvendo tais comunidades são raros. Com isso realizou-se o estudo taxonômico de Micrasterias as sociado a uma macrófita aquática (Utricularia foliosa L.) n...

Twelve taxa of the genus Chara (Characeae, Chlorophyta) are decribed and illustrated based on specimens from southern Brazil. The taxonomic survey in the states of Paraná, Santa Catarina and Rio Grande do Sul recorded seven, one, and nine species for each state, respectively. Chara guairensis was the most common species in the area, followed by C....

The study aimed to survey the flora of the Cosmarium genera on a tributary of Itaipu dam in western Paraná State. Samples were collected monthly from the biological community in five sampling stations in the limnetic region of the São Francisco Falso river tributary, Santa Helena, Paraná, between July 2003 and June 2004. Were used as criteria of oc...

Charophyceae (Chlorophyta) are a unique class of algae due their vegetative structure and macroscopic gametangia. The floristic survey of the genus Nitella (Characeae, Chlorophyta) in Mato Grosso (18º55'05"S and 54º50'39"W) and Mato Grosso do Sul States (19º12'03"S and 57º35'32"W), was performed by analyzing specimens from SP, HMS and CPAP herbariu...

The genus Cosmarium Corda ex Ralfs (Desmidiaceae) in the Itaipu Reservoir, PR, Brazil). The study aimed to survey the flora of the Cosmarium genera on a tributary of Itaipu dam in western Paraná State. Samples were collected monthly from the biological community in five sampling stations in the limnetic region of the São Francisco Falso river tribu...

Cosmarium Corda ex Ralfs (Desmidiaceae) em um lago artificial urbano, Paraná, Brasil RESUMO: (Cosmarium Corda ex Ralfs (Desmidiaceae) em um lago artificial urbano, Paraná, Brasil). O objetivo deste trabalho foi o levantamento taxonômico das espécies do gênero Cosmarium no Lago Municipal de Cascavel, Paraná. As coletas foram realizadas nos anos de 2...

Chorococcales sensu lato (Chlorophyceae) in depuration tanks of effl uents from bovine waste treatments in Mato Grosso do Sul, Brazil. This study registered the occurrence of the Order Chlorococcales sensu lato in depuration tanks of effl uents from bovine waste treatment with the presence of the macrophyte Landoltia punctata (G. Mey.) D.J. Crawfor...

This study registered the occurrence of the Order Chlorococcales sensu lato in depuration tanks of effluents from bovine waste treatment with the presence of the macrophyte Landoltia punctata (G. Mey.) D.J. Crawford. Samples were collected from May to October 2006. We identified 20 taxa belonging to the genera: Ankistrodesmus (1), Coelastrum (1), C...

O levantamento florístico do gênero Chara (Characeae, Chlorophyta) nos Estados de Mato Grosso (18°55'05"S, 54°50'39"W) e Mato Grosso do Sul (19°12'03"S, 57°35'32"W), Brasil, resultou na identificação, descrição e ilustração das seis espécies seguintes: Chara fibrosa C. Agardh ex Bruzelius emend. R. D Wood var. hydropitys (Reichenbach) R. D. Wood em...

This paper is a characterization of the desmid florula of the São João River, Iguaçu National Park, Foz do Iguaçu, Paraná, Brazil. Samples were collected in the period from June 2008 to May 2009 in three sampling stations of the São João river. The samples were obtained with a 25 µm nylon plankton net was immediately fixed on Transeau solution. 44...

This paper represents a floristic survey of the algal species in the order Chlorococcales (Chlorophyceae) from the São João River, Iguaçu National Park, Foz do Iguaçu, Paraná, Brazil. Samples were collected from June 2008 to May 2009 at three sampling stations along the riverbed. The phytoplankton material obtained with a 25 µm nylon plankton net w...

O levantamento florístico do gênero Chara (Characeae, Chlorophyta) nos Estados de Mato Grosso (18°55'05"S, 54°50'39"W) e Mato Grosso do Sul (19°12'03"S, 57°35'32"W), Brasil, resultou na identificação, descrição e ilustração das seis espécies seguintes: Chara fibrosa C. Agardh ex Bruzelius emend. R. D Wood var. hydropitys (Reichenbach) R. D. Wood em...

Foi realizado um inventário das espécies do gênero Closterium do lago Municipal de Cascavel, Paraná, Brasil. As coletas foram realizadas entre janeiro de 2002 a novembro de 2003, na região litorânea do lago. Dezessete táxons pertencentes ao gênero Closterium foram identificados, sendo 13 variedades típicas e quatro não típicas de suas espécies. Aes...

This study aimed to identify the species belonging to the genus Micrasterias from "Lago Municipal de Cascavel" and contributes to the knowledge of its taxonomic composition and geographic distribution in Paraná State. Taxonomic survey was based on monthly samples, performed from January 2002 to October 2003. Samples were collected using plankton ne...

This work aimed the taxonomic knowledge of the order Chlorococcales (Chlorophyceae) from São Francisco Falso River, one of the Itaipu reservoir tributaries located at the municipal district of Santa Helena, Paraná State, Brazil. Samples were collected from July 2003 to June 2004 at five sample stations located in the litoral region of the river. Th...

Temporal variation of Nitella furcata (Roxburgh ex Bruzelius) C. Agardh emend. R. D. Wood subsp. mucronata (A. Braun) R. D. Wood var. mucronata f. oligospira (A. Braun) R. D. Wood biomass and chemical composition were studied at the Ninféias Pond (23°38'18.9" S, 46°37'16.3" W), a mesotrophic reservoir located in the Parque Estadual das Fontes do Ip...

Introdução As desmídeas (famílias Desmidiaceae e Zygnemaceae) distribuem-se de forma cosmopolita e constituem um grupo de algas expressivo na produtividade primária dos ecossistemas aquáticos tropicais [1]. Para o estado do Paraná, estudos taxonômicos envolvendo a família Desmidiaceae compreendem levantamentos fitoplanctônicos e perifíticos [2, 3,...

Introdução Macrófitas aquáticas são vegetais que durante sua evolução retornaram ao ambiente aquático, e incluem desde macroalgas até as angiospermas [1]. Além de sua ampla distribuição geográficas, as macrófitas desempenham diferentes funções ecológicas, associado à riqueza específica e ao rápido crescimento vegetativo [2]. O crescimento excessivo...

Introdução As Charophyceae constituem classe única de algas graças a seu porte macroscópico e a alta complexidade morfológica tanto da organização do talo quanto das estruturas dos gametângios. Para Wood & Imahori [1] é monotípica, incluindo uma única família – Characeae-com representantes recentes e que engloba todos os seis gêneros atuais, a sabe...

Survey of genera Desmidiaceae (except Cosmarium) in a tributary of Itaipu Reservoir. It carried out it qualitative analysis of 60 samples collected in the period from July 2003 to June 2004. Forty-one species, ten varieties which are not the typical of its respective species and an another not typical species were also identified. The Desmidiaceae...

Introdução Utricularia gibba L. (Lentibulariaceae), fanerógamas aquáticas submersas livres além de utilizarem a fotossíntese para produção de alimento podem capturar organismos através de seus utrículos, os quais serão utilizados como uma via suplementar de nutrientes, principalmente em ambientes com escassez de nutrientes inorgânicos. Possui culti...

Trata-se do inventário florístico de Scenedesmaceae no Lago Municipal de Cascavel (24°82’S, 53º28´W), Paraná, Brasil. As amostras foram coletadas na região litorânea, no período de janeiro de 2002 a outubro de 2003. Foram registrados 21 táxons, sendo 13 do gênero Desmodesmus e oito pertencentes ao gênero Scenedesmus. O trabalhoapresenta descrição,...

Dinâmica temporal de uma população de Nitella furcata (Roxburgh ex Bruzelius) C. Agardh emend. R.D. Wood subsp. mucronata (A. Braun) R.D. Wood var. mucronata f. oligospira (A. Braun) R.D. Wood foi estudada no Lago das Ninféias (23°38'18,9"S, 46°37'16,3"W), um reservatório tropical, raso, mesotrófico situado na Reserva Biológica do Parque Estadual d...