A new planktic cyanoprokaryotic species, Cyanodictyon tropicalis (Cyanophyceae) from Espírito Santo State (Southeastern), Brazil

Senna, Pedro Américo Cabral; Delazari, A.; Anna, Célia Leite Sant'

doi:10.1127/algol_stud/94/1999/293

Cited by 7 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Coincident with our results, in other tropical lakes worldwide (e.g. South America, Africa) (reviewed in Cellamare et al, 2010) the tropical species found in this study are consistently found in waters with low transparency, regardless of conductivity, altitude, or depth (Begg, 1970;Hare & Carter, 1984;Senna et al, 1999;Magadza, 2006). The desmid seems to have a broad trophic spectrum (oligo-to eutrophic) (Compe `re & Iltis, 1983;Biswas & Nweze, 1990), while Cyanobacteria seem less favored in nutrient-poor conditions (Senna et al, 1999;Koma ´rek & Cronberg, 2001;Co ´zar et al, 2007).…”

Section: Tropical Species Success In Temperate Lakessupporting

confidence: 91%

Using functional approaches to study phytoplankton communities in a temperate region exposed to tropical species dispersal

Cellamare

Pinto

Leitão³

et al. 2012

Hydrobiologia

View full text Add to dashboard Cite

Functional characteristics play an important role in shaping phytoplankton distributions. This approach can help to explain the success of tropical taxa in temperate ecosystems. We used functional groups (FG) and functional traits (FT) to assess the phytoplankton distribution in five temperate lakes exposed to tropical taxa dispersal. We ran redundancy analyses to assess the relationship between each functional classification and the environment. Both approaches showed similar variance of the phytoplankton biomass and responded to similar environmental variables. The FG approach separated lakes by trophic status (total phosphorus: TP), while the FT approach reflected the lakes' hydromorphology (conductivity, depth, mixing regime). The traits of motility and mixotrophy coincided with low mixing and high light. Tropical taxa were dominant in two lakes, rare in one and absent in two lakes. When dominant, tropical taxa exerted an overwhelming effect on phytoplankton biomass and community composition, and contributed to foam occurrences. The success of tropical taxa in only two lakes seems related to the interplay of their traits (accessory pigments, morphology) and the prevailing environmental filters (low light, deep mixing, and intermediate TP). Their rarity or absence in the other lakes evidences how traits can increase fitness in one environment but not in other.

show abstract

Section: Tropical Species Success In Temperate Lakessupporting

confidence: 91%

Using functional approaches to study phytoplankton communities in a temperate region exposed to tropical species dispersal

Cellamare

Pinto

Leitão³

et al. 2012

Hydrobiologia

View full text Add to dashboard Cite

show abstract

“…The maximum measured length of pseudofilaments was 100 lm. The morphological characteristics of individuals found in our lakes correspond well to the description of C. tropicale (Senna et al, 1999). This species together with C. filiforme are similar to the genus Wolskyella, but Cyanodictyon cells are smaller (Mareš et al, 2008).…”

supporting

confidence: 59%

“…planctonicum (Compère, 1977;Croasdale et al, 1984;Capdevielle, 1985a), the filamentous cyanobacteria Planktolyngbya microspira, P. circumcreta, P. minor, Pseudanabaena recta and the pseudofilamentous Cyanodictyon tropicale (Senna et al, 1999;Komárek and Cronberg, 2001;Komárek and Anagnostidis, 2005) (Table 3). These species showed a clearly seasonal occurrence, being present especially in the warmer season.…”

Section: Discussionmentioning

confidence: 95%

Tropical phytoplankton taxa in Aquitaine lakes (France)

Cellamare¹,

Leitão²,

Coste³

et al. 2009

Hydrobiologia

View full text Add to dashboard Cite

“…Foram registrados 25 artigos com microalgas e cianobactérias continentais no Estado do Espírito Santo (Figura 1 e Anexo 2). Destes, 23 apresentaram cunho ecológico e apenas dois com abordagem estritamente taxonômica (Senna et al 1999e Delazari-Barroso et al 2007. A primeira publicação foi de Huszar et al (1990), abordando a composição florística, abundância e diversidade do fitoplâncton de 18 lagoas do Baixo rio Doce.…”

Section: Resultsunclassified

“…A primeira publicação foi de Huszar et al (1990), abordando a composição florística, abundância e diversidade do fitoplâncton de 18 lagoas do Baixo rio Doce. Posteriormente, até o ano 2000, somente outras cinco publicações foram registradas: Bozelli et al (1992) e Dias Júnior & Barroso (1998), com abordagem em variáveis limnológicas e biomassa fitoplanctônica, respectivamente; Dias-Junior (1994;1995), sobre caracterização da comunidade fitoplanctônica; e Senna et al (1999), de caráter taxonômico. Por outro lado, vale destacar que o primeiro trabalho sobre a comunidade perifítica no estado foi publicado apenas em 2007 (Martins & Fernandes 2007).…”

Section: Resultsunclassified

Microalgas E Cianobactérias Continentais No Estado Do Espírito Santo: Passado, Presente E Futuro

Fernandes¹,

Camargo-Santos²,

Zorzal-Almeida³

2022

Oecol. Austr.

View full text Add to dashboard Cite

O estado do Espírito Santo (Brasil) tem sido pouco explorado em termos de microalgas e cianobactérias de ambientes aquáticos continentais, apesar de possuir doze bacias hidrográficas, tendo a maior contribuição, em termos de volume de água da bacia do rio Doce. Este fato é resultado do baixo número de pesquisadores e instituições com pesquisas ecológicas e taxômicas. As primeiras investigações limnológicas com microalgas e cianobactérias ocorreram na década de 90, tendo avanço considerável em lagoas costeiras, lagos, rios e represas a partir da década de 2000, tanto com fitoplanctôn quanto com o perifíton, devido ao incremento de pesquisadores e editais de pesquisa. Este estudo cienciométrico visou identificar tendências das pesquisas já realizadas, apontando os ecossistemas aquáticos mais estudados e os autores dos artigos. Os resultados evidenciaram que a maioria dos estudos se concentrou na ecologia das comunidades, com listas de táxons; raros foram os estudos taxonômicos; poucos foram os trabalhos experimentais para compreensão de fatores reguladores das comunidades. Inúmeras lacunas precisam ser preenchidas, especialmente no que tange ao: levantamento da biodiversidade nas diferentes regiões do estado, com ênfase em taxonomia; desenvolvimento de pesquisas experimentais para compreensão de fatores reguladores das comunidades; estudos preditivos frente a impactos ambientais; uso destas comunidades como bioindicadores de impactos ambientais; estudos biotecnológicos com microalgas; pesquisas que abordem impactos na saúde pública relacionados, principalmente, com as florações de cianobactérias potencialmente tóxicas; realização de testes de hipóteses ecológicas. Há também a necessidade e relevância de publicações em revistas internacionais de maior impacto e com colaboradores nacionais e internacionais e o estabelecimento de parcerias com instituições externas ao Espírito Santo e ao Brasil. Os novos direcionamentos favorecerão o incremento do conhecimento das comunidades fitoplanctônica e perifítica nos ecossistemas aquáticos continentais do Espírito Santo e fornecerão subsídios para a tomada de medidas de recuperação e/ou preservação. CONTINENTAL MICROALGAE AND CYANOBACTERIA IN ESPÍRITO SANTO STATE: PAST, PRESENT AND FUTURE: The Espírito Santo State (Brazil) has been little explored in terms of microalgae and cyanobacteria from inland waters, despite its twelve hydrographic basins and being the greatest contribution in water volume of the Doce river basin. This fact is the result of the low number of researchers and institutions with research lines about freshwater ecology and microalgae taxonomy. Literature records indicate that the early limnological researches that studied microalgae were published in the 1990s, with a considerable increase in studies in coastal lagoons, lakes, rivers, and dams from the 2000s onwards, about phytoplankton and periphyton, due to the increase in the number of researchers and more research notices. The present scientometric work aimed to identify trends in the past studies, showing the aquatic ecosystems with the greatest number of studies and the authors of the articles. Our results showed that most studies focused on aquatic ecology and the community with lists of taxa; taxonomic studies were rares; there is little experimental work to understand community regulatory factors. Numerous gaps need to be filled, especially regarding to biodiversity in different regions of the state, with accurate taxonomy studies; more experimental research to understand regulatory factors in communities and predictive studies on environmental impacts; biotechnological studies; research related to public wealth and cyanobacteria blooms; and studies testing ecological hypotheses. It is also necessary to consider the needs and relevance of publications in international journals with greater impact and with national and international collaborators, establishing partnerships with institutions outside Espírito Santo and Brazil. The new directions will favor the increase of knowledge of the phytoplankton and periphytic communities in the continental aquatic ecosystems of Espírito Santo and will provide subsidies for taking measures for their recovery and/or preservation.

show abstract

A new planktic cyanoprokaryotic species, Cyanodictyon tropicalis (Cyanophyceae) from Espírito Santo State (Southeastern), Brazil

Cited by 7 publications

References 0 publications

Using functional approaches to study phytoplankton communities in a temperate region exposed to tropical species dispersal

Using functional approaches to study phytoplankton communities in a temperate region exposed to tropical species dispersal

Tropical phytoplankton taxa in Aquitaine lakes (France)

Microalgas E Cianobactérias Continentais No Estado Do Espírito Santo: Passado, Presente E Futuro

Contact Info

Product

Resources

About