Meteorological signals in primary productivity at two mountain lakes
Fluctuations in primary productivity at two subalpine lakes reveal both meteorological and biological influences. At Castle Lake, California, large-scale climate events such as the El Niño/Southern Oscillation affect total annual production and, combined with human fishing activity, modify the seasonal pattern of productivity. At Lake Tahoe, California-Nevada, local spring weather conditions modulate annual production and its seasonality by determining the depth of mixing and resulting internal nutrient load. Climatic conditions also contribute to deviations from the long-term trend in productivity by increasing the incidence of forest fires and through anomalous external nutrient loads during precipitation extremes. A 3-year cycle in productivity of as yet unknown origin has also been detected at Lake Tahoe.
| Main Authors: | , |
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| Format: | conference_item biblioteca |
| Language: | English |
| Published: |
1992
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| Subjects: | Atmospheric Sciences, Ecology, Limnology, PACLIM, |
| Online Access: | http://hdl.handle.net/1834/31453 |
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