Effect of acute acidic stress on survival and metabolic activity of zooplankton from Lake Biwa, Japan
Effect of acute acidic stress on survival and metabolic activity of zooplankton from Lake Biwa, Japan
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急性酸性胁迫对日本琵琶湖浮游动物生存和代谢活性的影响
DOI:
10.1080/20442041.2022.2058861
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发表时间:
2022
期刊:
影响因子:
3.1
通讯作者:
Syuhei Ban
中科院分区:
文献类型:
--
作者:
Huanan Gao;Xin Liu;Syuhei Ban
Acute acidic stress from sources such as acid rain might impact lake ecosystems in many aspects. Because zooplankton are sensitive to environmental change, they could be a good biotic indicator of acidification effects. We investigated survival and metabolic rates of 3 dominant zooplankton taxa in Lake Biwa, the cladoceranDaphnia pulicariaand the copepodsEodiaptomus japonicusand Cyclopoida spp., when subjected to different pH values (pH 4.0–8.0) at low (10 °C) and high (20 °C) temperatures. Because mortality ofD. pulicariaand Cyclopoida spp. exceeded 50% over 24 h of incubation at pH < 4.6, but forE. japonicusat pH < 5.6,E. japonicusmay be more vulnerable to acidic stress than the other 2 taxa. This vulnerability to acidification slightly increased at 10 °C for each taxon. Metabolic rates inD. pulicariaremained relatively constant over a wide pH range (4.6–8.0), but those of both copepods decreased at acidic conditions (pH 4.6–7.0). This decrease of metabolic rate might be related to their swimming activity, which decreased in acidic conditions.
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DOI:
--
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期刊:
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DOI:
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发表时间:
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Diversity
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