Comparison of ice-on and ice-off abiotic and biotic parameters in three eutrophic lakes
PBN-AR
Instytucja
Instytut Rybactwa Śródlądowego im. Stanisława Sakowicza
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
ECOLOGICAL RESEARCH
ISSN
0912-3814
EISSN
1440-1703
Wydawca
SPRINGER TOKYO
DOI
URL
Rok publikacji
2019
Numer zeszytu
5
Strony od-do
687-698
Numer tomu
34
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
EN
ice-free periods
phytoplankton
protists
winter period
zooplankton
Streszczenia
Język
EN
Treść
The structure and abundance of winter planktonic communities are limited by envi-ronmental conditions that are unfavorable to life, but do not stop biological pro-cesses. The aim of the study was to test the hypothesis that the abundance ofplanktonic groups of organisms in temperate lakes can be higher during winterunder ice cover than during the ice-free seasons. Physical (ice/snow cover, temper-ature), chemical (organic carbon, chlorophylla, phosphorus, nitrogen) and biologi-cal parameters (phytoplankton, protozooplankton, zooplankton) were investigatedin three eutrophic lakes during two consecutive years in winter, spring, summerand autumn. The results of this study showed that in all lakes chlorophyllaconcentrations were usually lower in winter than in other seasons, while totalnitrogen concentrations were higher in winter than in autumn. All groups of plank-tonic organisms were able to reach similar or even higher abundances in winterunder-ice than in other ice-free periods, depending on the lake morphometry andthe year of the study. Winter taxonomic structure of phytoplankton was similar tothe spring (medium-sized Lake DgałWielki with the dominance of cryptophytes),summer (small-sized Lake DgałMały with cyanobacteria as a dominant group) orautumn (the shallow lake with the dominance of diatoms) structure, depending onthe lake. In all lakes, the structure of the ciliate community was the most similar tothat of the spring with the clear dominance of Oligotrichida. Our results show thatsome species among all the studied groups of organisms can lead an active anddynamic life under the ice cover.
Cechy publikacji
Original Article
Inne
System-identifier
PX-5d78a44fd5dea15294c556f5
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