<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The objective of the study was to identify seasonal changes in phytoplankton taxonomic structure and development rates to characterize phytoplankton communities as determinants of the trophic and ecological conditions of Lake Kortowskie in northeast Poland which has been undergoing restoration with selective hypolimnetic withdrawal. The lake was designated as being of high trophic state and bad ecological status based on intense phytoplankton growth, the strong dominance and persistent occurrence of blue-green algae, and seasonal modifications in phytoplankton taxonomic structure and assemblage growth rates. The ecological status of the lake assessed in 2011 corresponds to that determined in 1987-1990 and 1999 and indicates that eutrophication in Lake Kortowskie is progressing.</p></abstract>

The objective of the study was to identify seasonal changes in phytoplankton taxonomic structure and development rates to characterize phytoplankton communities as determinants of the trophic and ecological conditions of Lake Kortowskie in northeast Poland which has been undergoing restoration with selective hypolimnetic withdrawal. The lake was designated as being of high trophic state and bad ecological status based on intense phytoplankton growth, the strong dominance and persistent occurrence of blue-green algae, and seasonal modifications in phytoplankton taxonomic structure and assemblage growth rates. The ecological status of the lake assessed in 2011 corresponds to that determined in 1987-1990 and 1999 and indicates that eutrophication in Lake Kortowskie is progressing.

Phytoplankton dominance structure and abundance as indicators of the trophic state and ecological status of Lake Kortowskie (northeast Poland) restored with selective hypolimnetic withdrawal

Department of Applied Ecology University of Warmia and Mazury Oczapowskiego 5, 10-957 Olsztyn, Poland

Department of Water Protection Engineering University of Warmia and Mazury in Olsztyn, Poland

Department of Microbiology University of Warmia and Mazury in Olsztyn, Poland

Fisheries & Aquatic Life

The objective of the study was to identify seasonal changes in phytoplankton taxonomic structure and development rates to characterize phytoplankton...

Phytoplankton dominance structure and abundance as indicators of the trophic state and ecological status of Lake Kortowskie (northeast Poland) restored with selective hypolimnetic withdrawal

Published Online: Apr 04, 2014

Page range: 7 - 15

DOI: https://doi.org/10.2478/aopf-2014-0002

Keywords
phytoplankton, lake, taxonomic structure, biomass, trophy, ecological status assessment

This content is open access.

Phytoplankton dominance structure and abundance as indicators of the trophic state and ecological status of Lake Kortowskie (northeast Poland) restored with selective hypolimnetic withdrawal

Published Online: Apr 04, 2014

Page range: 7 - 15

DOI: https://doi.org/10.2478/aopf-2014-0002

Keywordsphytoplankton, lake, taxonomic structure, biomass, trophy, ecological status assessment

This content is open access.

Keywords
phytoplankton, lake, taxonomic structure, biomass, trophy, ecological status assessment