Publication detail

The influence of the coagulant PAX–18 on Planktothrix agardhii bloom in a shallow eutrophic fishpond.

DOLEJŠ, P.

Original Title

The influence of the coagulant PAX–18 on Planktothrix agardhii bloom in a shallow eutrophic fishpond.

Type

journal article - other

Language

English

Original Abstract

For the first time in the Czech Republic, the PAX-18 coagulant has been used to restore a eutrophic fishpond. The polyaluminium hydrochloride coagulant was applied repeatedly to a shallow eutrophic fishpond in spring 2005. Two cylindrical plastic enclosures were used to isolate parts of the pond as untreated controls. Selected environmental variables were measured in situ. Water samples were analyzed regularly for nutrients, chlorophyll a concentration and phytoplankton abundance and structure with special focus on Planktothrix agardhii. The PAX-18 treatment led to a marked increase in the N/P ratio and changes in the structure and abundance of phytoplankton in the fishpond and P. agardhii blooms were eliminated in the fishpond. By contrast, P. agardhii dominated the phytoplankton in the control enclosures, as it had in the fishpond in 2004, prior to the PAX-18 treatment.

Keywords

shallow lakes; phosphorus precipitation; restoration; aluminium treatment; cyanobacterial water; blooms; phytoplankton

Authors

DOLEJŠ, P.

RIV year

2012

Released

11. 4. 2012

ISBN

1802-5439

Periodical

Fottea

Year of study

8

Number

2

State

Czech Republic

Pages from

147

Pages to

154

Pages count

8

BibTex

@article{BUT90598,
  author="Petr {Dolejš}",
  title="The influence of the coagulant PAX–18 on Planktothrix agardhii bloom in a shallow eutrophic fishpond.",
  journal="Fottea",
  year="2012",
  volume="8",
  number="2",
  pages="147--154",
  issn="1802-5439"
}