Low pH preempts bloom development of a toxic haptophyte.

摘要: Abstract Harmful blooms of Prymnesium parvum in inland waters continue to expand, part, due anthropogenic influences and climate change. Several studies have identified the importance elevated pH on increasing ambient toxicity associated with P. inland, coastal marine systems. Influence bloom dynamics, however, is less understood. Here, we evaluate whether development toxicity. We manipulated levels (7, 7.5, 8.5) situ experimental enclosures during 21 d pre-bloom experiments Lake Granbury, TX, USA, an impoundment consistently impacted by blooms. Neutral preempted development. Population densities never reached proportions no fish or cladocerans resulted. However, higher (8.5) allowed formation occur resulted During both experiments, reducing 7 7.5 did not adversely affect phytoplankton zooplankton biomass. Observations from this study provide initial evidence that appears be a major factor governing waters. This research further highlights developing understanding interactions among harmful responses activities climatic changes.