Limnological changes in a pond ecosystem cause by grass carp (Ctenopharyngodon idella Val.) low stocking density

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F09%3A00010800" target="_blank" >RIV/60076658:12220/09:00010800 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12520/09:00010311

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Limnological changes in a pond ecosystem cause by grass carp (Ctenopharyngodon idella Val.) low stocking density

Original language description

Grass carp (Ctenopharyngodon idella Val.) stocked (29 kg/ha) in a small pond reduced the biomass of aquatic macrophytes from 109 g/m(2) to 33 g/m(2) during one growing season. The only changes in hydrochemical parameters (pH, alkalinity, acidity, BOD5, CODMn, NH4-N, NO2-N, NO3-N, TN, PO4-P and TP) associated with the grass carp stocking were a decrease in pH (from 8.43 to 7.57) and in NO3-N concentration (from 0.99 mg/l to 0.56 mg/l). The increases in organic matter content and NO3-N concentration in the surface sediment layer were higher in the control pond than in the pond stocked with grass carp. No changes were detected in the other parameters (NH4-N, PO4-P and TP) in the upper sediment layer and between all parameters measured in the lower inorganic layer. The grass carp grazing had no impact on phytoplankton biomass (concentration of chlorophyll-a) or species composition. There were no changes either in the abundance or in the species composition of zooplankton and zoobenthos ind

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DA - Hydrology and limnology

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

Czech Journal of Animal Science : Živočišná výroba

ISSN

1212-1819

e-ISSN

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Volume of the periodical

54

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

15

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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