Reakce cyanobakteriálních nárostů na změny v koncentraci živin a salinitě.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F05%3A00006380" target="_blank" >RIV/60076658:12310/05:00006380 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60077387:_____/05:00030874

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Response of cyanobacterial mats to nutrient and salinity changes

Popis výsledku v původním jazyce

Cyanobacterial mats (CBM) are important ecosystems components of oligotrophic marshes in alkaline regions of the Caribbean. We conducted a response mesocosm experiment and submitted the CBM to factorial combinations of low, medium and high phosphorus, nitrogen and salinity. Primary production, tissue nutrients, and enzymatic activities, as well as changes in composition of the main species groups of CB and algae were recorded as response variables. The RDA analysis of explanatory variables (P, N and salinity) showed the primary production of CBM and phytoplankton were best explained by higher concentration of P, with less significant positive effect of N and a negative effect of salinity (increasing portion of green algae and Chroococcales). N-fixationwas negatively correlated with N- concentration in water and positively with abundance of heterocytous genus Nostoc. At high P and N the mats were impacted by grazing and disintegrate.

Název v anglickém jazyce

Response of cyanobacterial mats to nutrient and salinity changes

Popis výsledku anglicky

Cyanobacterial mats (CBM) are important ecosystems components of oligotrophic marshes in alkaline regions of the Caribbean. We conducted a response mesocosm experiment and submitted the CBM to factorial combinations of low, medium and high phosphorus, nitrogen and salinity. Primary production, tissue nutrients, and enzymatic activities, as well as changes in composition of the main species groups of CB and algae were recorded as response variables. The RDA analysis of explanatory variables (P, N and salinity) showed the primary production of CBM and phytoplankton were best explained by higher concentration of P, with less significant positive effect of N and a negative effect of salinity (increasing portion of green algae and Chroococcales). N-fixationwas negatively correlated with N- concentration in water and positively with abundance of heterocytous genus Nostoc. At high P and N the mats were impacted by grazing and disintegrate.

Druh

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

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Aquatic Botany

ISSN

0304-3770

e-ISSN

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Svazek periodika

83

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

20

Strana od-do

87-107

Kód UT WoS článku

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EID výsledku v databázi Scopus

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