The Effect of Fish Production and Environmental Factors on Phytoplankton in Hypertrophic Fishponds

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F22%3A43922753" target="_blank" >RIV/62156489:43210/22:43922753 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/22:43906088

Result on the web

<a href="https://doi.org/10.11118/actaun.2022.030" target="_blank" >https://doi.org/10.11118/actaun.2022.030</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11118/actaun.2022.030" target="_blank" >10.11118/actaun.2022.030</a>

Result language

angličtina

Original language name

The Effect of Fish Production and Environmental Factors on Phytoplankton in Hypertrophic Fishponds

Original language description

Fishponds form substantial part of standing water ecosystems in the landscape of the Central Europe. We studied the effects of fish production and environmental parameters on phytoplankton in fifteen fishponds of various size, fish production and situated at different altitudes. Water and plankton samples were collected from April to October 2018 and 2019. Phytoplankton abundance, zooplankton biovolume, total phosphorus, total nitrogen, ammonia-nitrogen, nitrites, nitrates, phosphates, and total iron concentration were determined. Based on average values of total nitrogen (8.53 mg.l-1), total phosphorus (0.399 mg.l-1), and chl-a (180 µg.l-1) all fishponds were classified as hypertrophic. Fish production was significantly correlated only with altitude. With increasing altitude, fishponds have a lower nutrient content, lower temperature, and hence lower production. The direct effect of fish production on phytoplankton was not observed. Two environmental parameters significantly explained the variability in phytoplankton - altitude and total iron concentration. Our results indicate that besides traditionally monitored parameters like nitrogen and phosphorus concentration, the attention should also be focused on other factors potentially affecting studied ecosystems, hypertrophic fishponds.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

40103 - Fishery

Project

<a href="/en/project/QK1810161" target="_blank" >QK1810161: Sustainable fish production in the ponds under the climate change</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis

ISSN

1211-8516

e-ISSN

2464-8310

Volume of the periodical

70

Issue of the periodical within the volume

6

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

10

Pages from-to

397-406

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85146066336