. . . "RIV/60077344:_____/08:00317892" . . "[CE08F054F33A]" . "2" . . "Application of the PDMPO technique in studying silica deposition in natural populations of Fragilaria crotonensis (Bacillariophyceae) at different depths in a eutrophic reservoir" . . . "Application of the PDMPO technique in studying silica deposition in natural populations of Fragilaria crotonensis (Bacillariophyceae) at different depths in a eutrophic reservoir"@en . "8"^^ . "Application of the PDMPO technique in studying silica deposition in natural populations of Fragilaria crotonensis (Bacillariophyceae) at different depths in a eutrophic reservoir" . . . . . "0022-3646" . "RIV/60077344:_____/08:00317892!RIV09-GA0-60077344" . "PDMPO; diatoms; Si deposition; image analysis; fluorescence"@en . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "2"^^ . "P(1QS600170504), P(GA206/05/0007), P(GA206/06/0462), P(IAA600170602), Z(AV0Z60170517)" . . . "Application of the PDMPO technique in studying silica deposition in natural populations of Fragilaria crotonensis (Bacillariophyceae) at different depths in a eutrophic reservoir"@en . . . . "Nedoma, Ji\u0159\u00ED" . . "Journal of Phycology" . "Pou\u017Eit\u00ED fluorescen\u010Dn\u00EDho zna\u010Den\u00ED deposice Si pomoc\u00ED PDMPO u p\u0159\u00EDrodn\u00EDch populac\u00ED rozsivky Fragilaria crotonensis v r\u016Fzn\u00FDch hloubk\u00E1ch v eutrofn\u00ED n\u00E1dr\u017Ei"@cs . "In 2006, we measured Si deposition in the summer diatom assemblage at various depths in a eutrophic \u0158\u00EDmov Reservoir using PDMPO technique. Diatom assemblage was exclusively dominated by Fragilaria crotonensis, which formed pronounced subsurface maxima. Concentrations of the main nutrients were low over the whole season, however, at depth the nutrient availability was higher than at the surface. Fragilaria Si deposition rates were eight times higher at the surface than at depth. A half of the population was involved in Si deposition at the surface while only 20 % active cells were found at depth. At the surface, Si deposition was limited by phosphorus deficiency; the effect of dissolved Si was not statistically significant. Si deposition at depth was significantly constrained by low light availability despite the 1 % average light attenuation at depth, which is supposed sufficient for photosynthesis." . "000254991300025" . "Pou\u017Eit\u00ED fluorescen\u010Dn\u00EDho zna\u010Den\u00ED deposice Si pomoc\u00ED PDMPO u p\u0159\u00EDrodn\u00EDch populac\u00ED rozsivky Fragilaria crotonensis v r\u016Fzn\u00FDch hloubk\u00E1ch v eutrofn\u00ED n\u00E1dr\u017Ei"@cs . . "Znachor, Petr" . "44" . . "2"^^ . . "Pr\u00E1ce se zab\u00FDv\u00E1 m\u011B\u0159en\u00EDm deposice Si u p\u0159\u00EDrodn\u00EDch populac\u00ED rozsivky Fragilaria crotonensis, kter\u00E9 jsme prov\u00E1d\u011Bli na \u0159\u00EDmovsk\u00E9 n\u00E1dr\u017Ei v roce 2006 za pomoc\u00ED fluorescen\u010Dn\u00EDho zna\u010Den\u00ED PDMPO. Rozsivky byly zastoupeny t\u00E9m\u011B\u0159 v\u00FDhradn\u011B druhem F. crotonensis, kter\u00FD tvo\u0159il v\u00FDrazn\u00E1 podpovrchov\u00E1 maxima biomasy (PMB, hloubka 2-6,5m). Deposice Si byla osmkr\u00E1t vy\u0161\u0161\u00ED u hladiny ne\u017E v hloubce PMB a tak\u00E9 procento zna\u010Den\u00FDch bun\u011Bk bylo podstatn\u011B vy\u0161\u0161\u00ED (50 % u hladiny, 20 % v hloubce PMB). N\u00EDzk\u00E1 rychlost depozici Si v hloubce PMB byla zap\u0159\u00ED\u010Din\u011Bna nedostatkem sv\u011Btla, a\u010Dkoli nam\u011B\u0159en\u00E9 hodnoty sv\u011Bteln\u00E9ho z\u00E1\u0159en\u00ED se pohybovaly kolem 1% u hladiny, co\u017E je tradi\u010Dn\u011B pova\u017Eov\u00E1no za dostate\u010Dn\u00E9 pro fotosynt\u00E9zu. U hladiny bylo ukl\u00E1d\u00E1n\u00ED Si b\u011Bhem roku ovlivn\u011Bno nedostatkem fosforu. Tato studie p\u0159edstavuje prvn\u00ED pokus o propojen\u00ED PDMPO techniky s kvantitativn\u00EDm m\u011B\u0159en\u00EDm fluorescence pomoc\u00ED anal\u00FDzy obrazu. Na z\u00E1klad\u011B na\u0161ich v\u00FDsledk\u016F, PDMPO p\u0159edstavuje u\u017Eite\u010Dn\u00FD n\u00E1stroj pro studium ekologie p\u0159\u00EDrodn\u00EDch populac\u00ED rozsivek."@cs . . "In 2006, we measured Si deposition in the summer diatom assemblage at various depths in a eutrophic \u0158\u00EDmov Reservoir using PDMPO technique. Diatom assemblage was exclusively dominated by Fragilaria crotonensis, which formed pronounced subsurface maxima. Concentrations of the main nutrients were low over the whole season, however, at depth the nutrient availability was higher than at the surface. Fragilaria Si deposition rates were eight times higher at the surface than at depth. A half of the population was involved in Si deposition at the surface while only 20 % active cells were found at depth. At the surface, Si deposition was limited by phosphorus deficiency; the effect of dissolved Si was not statistically significant. Si deposition at depth was significantly constrained by low light availability despite the 1 % average light attenuation at depth, which is supposed sufficient for photosynthesis."@en . . "356802" . .