Rapid changes in water hardness and alkalinity: Calcite formation is lethal to Daphnia magna
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- 作者：Sarah J. Bogarta ; Sarah.Bogart@uleth.ca" class="auth_mail" title="E-mail the corresponding author ; Samuel Woodmana ; Dylan Steinkeya ; Cindy Meaysb ; Cindy.Meays@gov.bc.ca" class="auth_mail" title="E-mail the corresponding author ; Greg G. Pylea ; Gregory.Pyle@uleth.ca" class="auth_mail" title="E-mail the corresponding author
- 关键词：CaCO3 ; Calcite precipitation ; Daphnia magna ; Ion toxicity ; Water hardness ; Alkalinity
- 刊名：Science of the Total Environment
- 出版年：2016
- 出版时间：15 July 2016
- 年：2016
- 卷：559
- 期：Complete
- 页码：182-191
- 全文大小：991 K
文摘
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D. magna were exposed to rapid, extreme shifts in water hardness and/or alkalinity.
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Without a precipitation event, the tested shifts were not lethal to D. magna.
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If CaCO3 precipitated in test water, 98–100% of D. magna died within 96 h.
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CaCO3 precipitate from a mining impacted stream contained cemented organisms.
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Rapid CaCO3 precipitation may cause species loss and wide-scale ecosystem effects.