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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Spatial heterogeneity of diatom silicification and growth in a eutrophic reservoir
 VISOCKÁ, Veronika
Silification and growth rates of diatoms were measured at two distinct sites along the longitudinal profile of the canyon-shaped eutrophic Římov Reservoir during April?November 2011, at 1?3 week intervals. Over the study season, the most abundant diatom species were Asterionella formosa and Fragilaria crotonensis, while Aulacoseira italica, Nitzschia acicularis, Synedra acus and Stephanodiscus sp. were less important. Silica deposition measured via PDMPO fluorescence technique was significantly related to growth rates of three diatom species (Fragilaria crotonensis, Asterionella formosa, Aulacoseira italica). Growth rates of the two most abundant diatom species were positively correlated with daily light exposure but not with nutrient concentrations.
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Karbonatity jižního Mongolska
 Kynický, Jindřich
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