Diatom and desmid relationships with the environment in mountain lakes and mires of NW Spain

Negro, Ana I.; Hoyos, Caridad de; Aldasoro, Juan José

doi:10.1023/b:hydr.0000007212.78065.c1

Cited by 37 publications

(18 citation statements)

References 21 publications

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“…Subsequently the water drained, but substantial changes occured in vegetation, peat moss largely disappeared, remaining to a lesser extent only in the western part of the bog, which was most likely the reason for a low number of desmid group members. Diatoms and desmids are usually dominant in bog waters (Mataloni & Tell 1996;Watanabe et al 2000;Krivograd Klemenčič & Vrhovšek 2003;Negro et al 2003;Borics et al 2003;Muñoz et al 2003). Cyanobacteria are normally a good indicator of eutrophication; however, other authors report that Cyanobacteria are also an important component of algal communities in oligotrophic environments (Krivograd Klemenčič & Vrhovšek 2003;Muñoz et al 2003, Borics et al 2003Rauch et al 2006).…”

Section: General Descriptionmentioning

confidence: 99%

“…The above-mentioned species are cosmopolitan, i.e. present in bogs throughout the world (Mataloni & Tell 1996;Mataloni 1999;Pietryka 2000;Watanabe et al 2000;Nováková 2002;Negro et al 2003;Muñoz et al 2003, Krivograd Klemenčič & Vrhovšek 2003.…”

Section: Diatomsmentioning

confidence: 99%

“…The proper habitat for desmids is acid peat bog water, where they reach the highest diversity (Dell'Uomo & Pellegrini 1993); desmids are common in peat bogs where peat moss consumes the nutrients from water and thus maintains the oligotrophic conditions necessary for their thriving (Muñoz et al 2003). Negro et al (2003) Table 3.…”

Section: Desmidsmentioning

confidence: 99%

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Algal community patterns in Slovenian bogs along environmental gradients

et al. 2010

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In 2005 and 2006, epiphyton samples were collected from seven lowland and montane peat bogs in Slovenia. Water temperature, pH, conductivity, dissolved oxygen and saturation were measured at the same time. Diatoms, desmids and Cyanobacteria were the most abundand groups in species number. Canonical Correspondence Analysis (CCA) was carried out on Cyanobacteria, diatom and desmid flora composition. This analysis showed that shading was the most important parameter in Cyanobacteria distribution and bedrock the most important one in that of diatoms and desmids. Cluster analyses were carried out based on the Cyanobacteria, diatom and desmid data. The Cyanobacteria and diatom data separated sites, whereas the desmid data revealed a temporal aspect.

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Section: General Descriptionmentioning

confidence: 99%

Section: Diatomsmentioning

confidence: 99%

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Algal community patterns in Slovenian bogs along environmental gradients

et al. 2010

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“…De igual manera, Heimansia pusilla, la especie más abundante durante el estudio, se ha registrado en sistemas mesotróficos de aguas ácidas (Coesel, 1993;Pinilla, 2000). Esta desmidia es de hábitos ticoplanctónicos (asociada a raíces de plantas acuáticas) y con preferencia por aguas no muy mineralizadas (Negro, De Hoyos & Aldasoro, 2003), como es el caso del humedal El Salitre.…”

Section: Discussionunclassified

Evaluación del estado trófico de El Salitre, último humedal urbano de referencia en Bogotá

Pulido-López

Agudelo

2017

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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ResumenEl Distrito Capital de Bogotá cuenta con 15 humedales reconocidos como parte del sistema de áreas protegidas de la ciudad, la mayoría de los cuales se encuentran seriamente afectados debido a la presión ejercida por el acelerado crecimiento urbano. A diferencia de los otros sistemas del mismo tipo, el humedal El Salitre, recientemente declarado como Parque Ecológico Distrital de Humedal, no se ha visto afectado por vertimientos de aguas residuales. En este estudio se determinó el estado trófico de dicho humedal a partir de la concentración de nutrientes y clorofila a fitoplanctónica, el cálculo de los índices del estado trófico y la composición taxonómica del fitoplancton. El nutriente limitante fue el nitrógeno. Las bajas concentraciones de compuestos nitrogenados, los índices fitoplanctónicos y la dominancia de desmidias (Conjugatophyceae), indicaron que el humedal El Salitre presentó condiciones de oligotrofia a mesotrofia en los dos periodos climáticos durante los cuales se estudió. Los resultados sugieren que este humedal podría servir como sistema de referencia para los demás humedales de Bogotá. © 2017. Acad. Colomb. Cienc. Ex. Fis. Nat. Palabras clave:Nutrientes; Clorofila a; Fitoplancton; Sistema palustre; Índices de estado trófico; Humedal conservado. Evaluation of the trophic state of El Salitre, the last urban reference wetland of Bogotá AbstractThe Capital District of Bogotá has 15 wetlands recognized within the system of protected areas of the city, most of which are seriously affected due to the pressure exerted by the rapid urban growth. Unlike other systems of the same type, El Salitre wetland, recently declared as a Wetland District Ecological Park, has not been affected by wastewater discharges. In this study, we determined its trophic state based on the concentrations of nutrients and phytoplanktonic chlorophyll a, trophic state indices calculation and the taxonomic composition of phytoplankton. Nitrogen was the limiting nutrient. Low concentrations of nitrogen compounds, phytoplankton indices, and dominance of desmids (Conjugatophyceae) indicated that El Salitre wetland presented an oligotrophic to mesotrophic condition in the two climatic periods during which it was studied. These results suggest that it could serve as reference system for other wetlands in Bogotá.

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“…In addition, Coscinodiscus lacustris is also reported to have its occurrence in a q u a t i c e n v i r o n m e n t s t i e d t o t h e physicochemistry of the system. Amongst these physico-chemical parameters are dissolved oxygen, nitrates, alkalinity and temperature (Negro et al, 2003;Vercellino & Bicudo, 2006).…”

Section: Discussionmentioning

confidence: 99%