Microhabitat de Tolypothrix distorta Kütz. ex Bornet & Flahault (Microchaetaceae, Cyanophyta) em dois riachos da região Centro-Sul do Estado do Paraná, Brasil
This study aimed to evaluate some microhabitat characteristics of two populations of Tolypothrix distorta in streams from midsouthern region of Paraná State on a seasonal period. Each population was monthly investigated for the abundance of T. distorta and environmental variables such as depth, curr...
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| Format: | Article |
| Language: | English |
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Instituto de Botânica
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| Series: | Hoehnea |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2236-89062013000400002&lng=en&tlng=en |
| _version_ | 1818929543940931584 |
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| author | Rogério Antonio Krupek Ciro César Zanini Branco Cleto Kaveski Peres |
| author_facet | Rogério Antonio Krupek Ciro César Zanini Branco Cleto Kaveski Peres |
| author_sort | Rogério Antonio Krupek |
| collection | DOAJ |
| description | This study aimed to evaluate some microhabitat characteristics of two populations of Tolypothrix distorta in streams from midsouthern region of Paraná State on a seasonal period. Each population was monthly investigated for the abundance of T. distorta and environmental variables such as depth, current velocity, irradiance, richness, and substrate diversity (H') using the quadrat technique for each sample unit (n = 7-10). For each segment the following physical and chemical water variables were also measured: temperature, oxygen saturation, specific conductance, pH, and turbidity. The seasonal period of higher abundance (percent cover) occurred during the months corresponding to summer/fall for both populations. The analyses also showed that populations had lower niche width and wide variation under the environmental conditions, characterizing the species as a generalist in the use of resources. Faster water flow and larger substrates favored the development of T. distorta, which may be related to the species morphological characteristics, thallus type that consists of tangled filaments formed by tuft and covered with thick gelatinous coats. |
| first_indexed | 2024-12-20T03:46:29Z |
| format | Article |
| id | doaj.art-607bc17ba9464d5cb84845695aa2011c |
| institution | Directory Open Access Journal |
| issn | 2236-8906 |
| language | English |
| last_indexed | 2024-12-20T03:46:29Z |
| publisher | Instituto de Botânica |
| record_format | Article |
| series | Hoehnea |
| spelling | doaj.art-607bc17ba9464d5cb84845695aa2011c2022-12-21T19:54:35ZengInstituto de BotânicaHoehnea2236-890640459560010.1590/S2236-89062013000400002S2236-89062013000400002Microhabitat de Tolypothrix distorta Kütz. ex Bornet & Flahault (Microchaetaceae, Cyanophyta) em dois riachos da região Centro-Sul do Estado do Paraná, BrasilRogério Antonio Krupek0Ciro César Zanini Branco1Cleto Kaveski Peres2Universidade Estadual do ParanáUniversidade Estadual PaulistaUniversidade Federal da Integração Latino-AmericanaThis study aimed to evaluate some microhabitat characteristics of two populations of Tolypothrix distorta in streams from midsouthern region of Paraná State on a seasonal period. Each population was monthly investigated for the abundance of T. distorta and environmental variables such as depth, current velocity, irradiance, richness, and substrate diversity (H') using the quadrat technique for each sample unit (n = 7-10). For each segment the following physical and chemical water variables were also measured: temperature, oxygen saturation, specific conductance, pH, and turbidity. The seasonal period of higher abundance (percent cover) occurred during the months corresponding to summer/fall for both populations. The analyses also showed that populations had lower niche width and wide variation under the environmental conditions, characterizing the species as a generalist in the use of resources. Faster water flow and larger substrates favored the development of T. distorta, which may be related to the species morphological characteristics, thallus type that consists of tangled filaments formed by tuft and covered with thick gelatinous coats.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2236-89062013000400002&lng=en&tlng=enautoecologymacroalgaeTolypothrix distortaseasonal variation |
| spellingShingle | Rogério Antonio Krupek Ciro César Zanini Branco Cleto Kaveski Peres Microhabitat de Tolypothrix distorta Kütz. ex Bornet & Flahault (Microchaetaceae, Cyanophyta) em dois riachos da região Centro-Sul do Estado do Paraná, Brasil Hoehnea autoecology macroalgae Tolypothrix distorta seasonal variation |
| title | Microhabitat de Tolypothrix distorta Kütz. ex Bornet & Flahault (Microchaetaceae, Cyanophyta) em dois riachos da região Centro-Sul do Estado do Paraná, Brasil |
| title_full | Microhabitat de Tolypothrix distorta Kütz. ex Bornet & Flahault (Microchaetaceae, Cyanophyta) em dois riachos da região Centro-Sul do Estado do Paraná, Brasil |
| title_fullStr | Microhabitat de Tolypothrix distorta Kütz. ex Bornet & Flahault (Microchaetaceae, Cyanophyta) em dois riachos da região Centro-Sul do Estado do Paraná, Brasil |
| title_full_unstemmed | Microhabitat de Tolypothrix distorta Kütz. ex Bornet & Flahault (Microchaetaceae, Cyanophyta) em dois riachos da região Centro-Sul do Estado do Paraná, Brasil |
| title_short | Microhabitat de Tolypothrix distorta Kütz. ex Bornet & Flahault (Microchaetaceae, Cyanophyta) em dois riachos da região Centro-Sul do Estado do Paraná, Brasil |
| title_sort | microhabitat de tolypothrix distorta kutz ex bornet flahault microchaetaceae cyanophyta em dois riachos da regiao centro sul do estado do parana brasil |
| topic | autoecology macroalgae Tolypothrix distorta seasonal variation |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2236-89062013000400002&lng=en&tlng=en |
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