Temperature Dependence of Freshwater Phytoplankton Growth Rates and Zooplankton Grazing Rates

Phytoplankton growth rates and zooplankton grazing were estimated on 16 occasions over a period of 17 months in University Lake, highly eutrophic lake the campus Louisiana State University. chlorophyll concentrations averaged 1.0 ± 0.2 d?1 240 120 mg m?3, respectively. Chlorophyll at or above inflection point Holling type I curve that described relationship between concentrations. In most cases, it was necessary to dilute water by more than factor 4 before became sensitive positively correlated with temperature roughly fourfold higher 30 °C 15 °C. An analysis dependence this study 87 other paired estimates limnetic phytoplankton revealed virtually identical dependences very similar predicted metabolic theory ecology. exceeded 0.13 0.05 all temperatures range 8.5–31.5 The Q10 for both 1.5 range.