Factors affecting growth and viability of natural diatom populations in the meso-eutrophic Římov Reservoir (Czech Republic)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F15%3A00443835" target="_blank" >RIV/60077344:_____/15:00443835 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10750-015-2417-8" target="_blank" >http://dx.doi.org/10.1007/s10750-015-2417-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10750-015-2417-8" target="_blank" >10.1007/s10750-015-2417-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Factors affecting growth and viability of natural diatom populations in the meso-eutrophic Římov Reservoir (Czech Republic)

Popis výsledku v původním jazyce

Algal population size may vary substantially over the season in response to varying growth and loss rates strongly affected by environmental drivers. In our study, we measured growth and viability of Fragilaria crotonensis, a dominant diatom of the summer phytoplankton in the small, meso-eutrophic, dimictic freshwater Římov Reservoir (Czech Republic). Over two consecutive seasons, Fragilaria growth and viability were assessed with PDMPO, a specific Si-deposition tracer in diatoms, and SYTOX Green, a membrane permeability probe, respectively. Using multiple linear regression with stepwise forward selection of environmental variables, diatom growth and viability were found to be driven by different factors. Fragilaria growth was positively affected by daily light exposure during the 24-h incubation with PDMPO and by mean river discharge into the reservoir over the 10 days before our measurements. Fragilaria viability, in contrast, declined markedly with decreased ambient silica concentra

Název v anglickém jazyce

Factors affecting growth and viability of natural diatom populations in the meso-eutrophic Římov Reservoir (Czech Republic)

Popis výsledku anglicky

Algal population size may vary substantially over the season in response to varying growth and loss rates strongly affected by environmental drivers. In our study, we measured growth and viability of Fragilaria crotonensis, a dominant diatom of the summer phytoplankton in the small, meso-eutrophic, dimictic freshwater Římov Reservoir (Czech Republic). Over two consecutive seasons, Fragilaria growth and viability were assessed with PDMPO, a specific Si-deposition tracer in diatoms, and SYTOX Green, a membrane permeability probe, respectively. Using multiple linear regression with stepwise forward selection of environmental variables, diatom growth and viability were found to be driven by different factors. Fragilaria growth was positively affected by daily light exposure during the 24-h incubation with PDMPO and by mean river discharge into the reservoir over the 10 days before our measurements. Fragilaria viability, in contrast, declined markedly with decreased ambient silica concentra

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Hydrobiologia

ISSN

0018-8158

e-ISSN

—

Svazek periodika

762

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

253-265

Kód UT WoS článku

000364635100020

EID výsledku v databázi Scopus

2-s2.0-84946496481