Phytoplankton-zooplankton coupling in a cascade of hypertrophic fishponds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F23%3A43924108" target="_blank" >RIV/62156489:43210/23:43924108 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/23:43907443

Výsledek na webu

<a href="https://doi.org/10.4081/jlimnol.2023.2145" target="_blank" >https://doi.org/10.4081/jlimnol.2023.2145</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4081/jlimnol.2023.2145" target="_blank" >10.4081/jlimnol.2023.2145</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Phytoplankton-zooplankton coupling in a cascade of hypertrophic fishponds

Popis výsledku v původním jazyce

In Central Europe, a significant proportion of shallow lake ecosystems are represented by artificial fishponds, where phytoplankton and zooplankton are an essential part of the food web. Owing to their high fish stocks and intensive fishery management, most fishponds are now eutrophic or hypertrophic, which has had clear impacts on plankton assemblages. To obtain a better understanding of phytoplankton-zooplankton coupling in fishponds, this study examines their ecological relationships in a cascade of three small fishponds over two subsequent years. In all, 133 phytoplankton taxa were recorded, mostly chlorophytes, diatoms and euglenophytes, and 60 zooplankton taxa. Multivariate analysis revealed dissolved oxygen content, dissolved inorganic nitrogen and biochemical oxygen demand as the main factors influencing phytoplankton biomass, while the most significant environment variables affecting zooplankton composition were dissolved oxygen, phosphate concentrations and conductivity. Co-correspondence analysis revealed a significant relationship between phytoplankton and zooplankton density, with cross-correlations from 76% to 87% within the first four axes. Such a high cross-correlation denotes a strong relationship between phytoplankton and zooplankton, even within the hypertrophic conditions determining fishpond ecosystems.

Název v anglickém jazyce

Phytoplankton-zooplankton coupling in a cascade of hypertrophic fishponds

Popis výsledku anglicky

In Central Europe, a significant proportion of shallow lake ecosystems are represented by artificial fishponds, where phytoplankton and zooplankton are an essential part of the food web. Owing to their high fish stocks and intensive fishery management, most fishponds are now eutrophic or hypertrophic, which has had clear impacts on plankton assemblages. To obtain a better understanding of phytoplankton-zooplankton coupling in fishponds, this study examines their ecological relationships in a cascade of three small fishponds over two subsequent years. In all, 133 phytoplankton taxa were recorded, mostly chlorophytes, diatoms and euglenophytes, and 60 zooplankton taxa. Multivariate analysis revealed dissolved oxygen content, dissolved inorganic nitrogen and biochemical oxygen demand as the main factors influencing phytoplankton biomass, while the most significant environment variables affecting zooplankton composition were dissolved oxygen, phosphate concentrations and conductivity. Co-correspondence analysis revealed a significant relationship between phytoplankton and zooplankton density, with cross-correlations from 76% to 87% within the first four axes. Such a high cross-correlation denotes a strong relationship between phytoplankton and zooplankton, even within the hypertrophic conditions determining fishpond ecosystems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40103 - Fishery

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Limnology

ISSN

1129-5767

e-ISSN

1723-8633

Svazek periodika

82

Číslo periodika v rámci svazku

21 September

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

10

Strana od-do

2145

Kód UT WoS článku

001104611400002

EID výsledku v databázi Scopus

2-s2.0-85178319611