Development and collapse of an Oscillatoria bloom in Loch Leven during July 1994
During 1994, weekly spot-sampling of open water sites on Loch Leven took place from 16th March onwards. Very little difference between spot-sampling sites was observed from 16th March to 5th July. Throughout April and May there was a slow increase in levels of chlorophyll-a, followed by a rapid increase through June, reaching a maximum of 230 micrograms per litre. On 8th July there was a very rapid rise in water temperature, with a corresponding increase in dissolved oxygen and pH. At 0915 hours on 9th July there was a drop in all three variables. These changes were coincident with a marked reduction in chlorophyll-a values falling to 70 micrograms per litre on 12th July. On 16th July evidence of a resurgence of photosynthesis was observed.
| Main Authors: | , , |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
1994
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| Subjects: | Ecology, Limnology, algae, algal blooms, biological sampling, phytoplankton, plankton surveys, Scotland, Loch Leven, Cyanophyta, Oscillatoria, |
| Online Access: | http://hdl.handle.net/1834/22161 |
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