Seasonal changes in water temperatures, embracing periods of low, rising, high and declining temperatures, were recorded in both a temperate and a tropical pond. In the course of a year, the range between the lowest and highest average weekly temperatures was greater in the temperate pond. The spans
Seasonal and diurnal changes of chlorophyll in a tropical fresh water impoundment
โ Scribed by V. Kannan; S. V. Job
- Publisher
- Springer
- Year
- 1980
- Tongue
- English
- Weight
- 273 KB
- Volume
- 69
- Category
- Article
- ISSN
- 1573-5141
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โฆ Synopsis
The phytoplankton biomass was estimated in terms of chlorophyll in Sathiar reservoir . The chlorophyll values were high during the low water phase in the reservoir which was also the period of summer . Following the rains and increase in water depth phytoplankton biomass decreases on account of (a) dilution, (b) loss from the reservoir through the outlets and (c) settling to the bottom along with silt . The diel variations of chlorophyll showed that the peak value was reached mostly at 12 noon due to the migration of phytoplankton to the surface .
๐ SIMILAR VOLUMES
Key features of photosynthetic picoplankton populations were compared during 1988 in ten lakes in northem England ranging from oligotrophic to slightly eutrophic; two of the three eutrophic lakes were shallow and lacked a thermocline. Measurements were made at 0.5 m depth of temperature, total chlor