Nutrient combined hydrodynamic mixing facilitates Microcystis dominating phytoplankton communities: evidence from a microcosm experiment

Nutrients and hydrodynamic mixing are both important environmental factors affecting the growth of Microcystis . Effects of nutrient combined with hydrodynamic mixing in the dominance of Microcystis in phytoplankton community is unclear. Here we present data on the effects of hydrodynamic mixing (HM...

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Veröffentlicht in:Journal of applied phycology 2022-10, Vol.34 (5), p.2507-2514
Hauptverfasser: Yang, Guijun, Pan, Wenwen, Rui, Zheng, Zhong, Chunni, Tang, Xiangming, Yu, Ruipeng, Hu, Xiquan
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container_issue 5
container_start_page 2507
container_title Journal of applied phycology
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creator Yang, Guijun
Pan, Wenwen
Rui, Zheng
Zhong, Chunni
Tang, Xiangming
Yu, Ruipeng
Hu, Xiquan
description Nutrients and hydrodynamic mixing are both important environmental factors affecting the growth of Microcystis . Effects of nutrient combined with hydrodynamic mixing in the dominance of Microcystis in phytoplankton community is unclear. Here we present data on the effects of hydrodynamic mixing (HM), nutrient addition (+ N + P), and hydrodynamic mixing combined nutrient addition (HM + N + P) on dominance of Microcystis in a microcosm experiments. Results showed that the average number of Microcystis in HM + N + P was 10.09, 3.79, and 1.95 times that of the control (9.19 × 10 6 cells L −1 ), + N + P, and HM group, respectively. Moreover, the mean colony sizes of Microcystis in HM + N + P group were 2.08, 1.91, and 1.21 times that of the control (24.42 μm), + N + P,HM group, respectively. Pseudanabaena limnetica replaced Microcystis as the dominant species in control, + N + P, and HM group at end of the experiment, with 82.21%, 90.65%, and 50.37% of total algae number, respectively. However, in HM + N + P group, Microcystis dominated throughout the experimental period, accounting for 73.56–94.67% of the total algae abundance. Results demonstrated that N and P combined with hydrodynamic mixing promoted abundance, colony size of Microcystis , which plays an important role in the dominance of Microcystis in phytoplankton community in natural ecosystems.
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Effects of nutrient combined with hydrodynamic mixing in the dominance of Microcystis in phytoplankton community is unclear. Here we present data on the effects of hydrodynamic mixing (HM), nutrient addition (+ N + P), and hydrodynamic mixing combined nutrient addition (HM + N + P) on dominance of Microcystis in a microcosm experiments. Results showed that the average number of Microcystis in HM + N + P was 10.09, 3.79, and 1.95 times that of the control (9.19 × 10 6 cells L −1 ), + N + P, and HM group, respectively. Moreover, the mean colony sizes of Microcystis in HM + N + P group were 2.08, 1.91, and 1.21 times that of the control (24.42 μm), + N + P,HM group, respectively. Pseudanabaena limnetica replaced Microcystis as the dominant species in control, + N + P, and HM group at end of the experiment, with 82.21%, 90.65%, and 50.37% of total algae number, respectively. 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Effects of nutrient combined with hydrodynamic mixing in the dominance of Microcystis in phytoplankton community is unclear. Here we present data on the effects of hydrodynamic mixing (HM), nutrient addition (+ N + P), and hydrodynamic mixing combined nutrient addition (HM + N + P) on dominance of Microcystis in a microcosm experiments. Results showed that the average number of Microcystis in HM + N + P was 10.09, 3.79, and 1.95 times that of the control (9.19 × 10 6 cells L −1 ), + N + P, and HM group, respectively. Moreover, the mean colony sizes of Microcystis in HM + N + P group were 2.08, 1.91, and 1.21 times that of the control (24.42 μm), + N + P,HM group, respectively. Pseudanabaena limnetica replaced Microcystis as the dominant species in control, + N + P, and HM group at end of the experiment, with 82.21%, 90.65%, and 50.37% of total algae number, respectively. However, in HM + N + P group, Microcystis dominated throughout the experimental period, accounting for 73.56–94.67% of the total algae abundance. Results demonstrated that N and P combined with hydrodynamic mixing promoted abundance, colony size of Microcystis , which plays an important role in the dominance of Microcystis in phytoplankton community in natural ecosystems.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s10811-022-02802-2</doi><tpages>8</tpages></addata></record>
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subjects Abundance
Algae
Biomedical and Life Sciences
Colonies
Dominance
Dominant species
Ecology
Environmental factors
Freshwater & Marine Ecology
Hydrodynamics
Life Sciences
Microcystis
Nutrients
Phytoplankton
Plankton
Plant Physiology
Plant Sciences
title Nutrient combined hydrodynamic mixing facilitates Microcystis dominating phytoplankton communities: evidence from a microcosm experiment
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