Prostorová a časová diverzita malých mělkých vod v nivě řeky Lužnice

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F07%3A00008150" target="_blank" >RIV/60076658:12220/07:00008150 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Spatial and temporal diversity of small shallow waters

Popis výsledku v původním jazyce

To propose a concept of their mutual diversity, 29 permanent shallow floodplain pools and oxbows in the river Luznice floodplain were analysed for morphometry, water chemistry, shading , flooding and plankton comunities. The sites are regularly flooded,eutrophic, and often shaded by surrounding vegetation. Cryptophyceae, Chrysophyceae and Euglenophyceae dominated the phytoplankton, while Cyanophytes were rare. Within the zooplankton assemblage, cladocerans and rotifers dominated. Multivariate analysesindicated that shaded and relatively deeper sites had lower oxygen saturation and higher concentrations of PO4-P and NH4-N. Shade and relative depth correlated negatively with phytoplankton biomass and number of algal taxa, and positively with Cryptophytes and large cladocerans thus indicating poor mixing, poor light availability and low fish pressure on herbivores. Larger sites were more species- rich in algae and supported Euglenophyceae, green algae and rotifers.

Název v anglickém jazyce

Spatial and temporal diversity of small shallow waters

Popis výsledku anglicky

To propose a concept of their mutual diversity, 29 permanent shallow floodplain pools and oxbows in the river Luznice floodplain were analysed for morphometry, water chemistry, shading , flooding and plankton comunities. The sites are regularly flooded,eutrophic, and often shaded by surrounding vegetation. Cryptophyceae, Chrysophyceae and Euglenophyceae dominated the phytoplankton, while Cyanophytes were rare. Within the zooplankton assemblage, cladocerans and rotifers dominated. Multivariate analysesindicated that shaded and relatively deeper sites had lower oxygen saturation and higher concentrations of PO4-P and NH4-N. Shade and relative depth correlated negatively with phytoplankton biomass and number of algal taxa, and positively with Cryptophytes and large cladocerans thus indicating poor mixing, poor light availability and low fish pressure on herbivores. Larger sites were more species- rich in algae and supported Euglenophyceae, green algae and rotifers.

Druh

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

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

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

24

Číslo periodika v rámci svazku

584

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

265-275

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—