The Trophic Cascade in Lakes [Paperback]

This 1993 book documents the importance of trophic cascades in aquatic ecology.Trophic cascades may interact with nutrients and physical factors to explain most of the variance in lake ecosystem process rates. This text tests this idea by manipulating whole lakes experimentally and coordinating this with paleolimnological studies, simulation modeling, and small-scale enclosure experiments.Trophic cascades may interact with nutrients and physical factors to explain most of the variance in lake ecosystem process rates. This text tests this idea by manipulating whole lakes experimentally and coordinating this with paleolimnological studies, simulation modeling, and small-scale enclosure experiments.In this book, a multidisciplinary research team tests this idea by manipulating whole lakes experimentally, and coordinating this with paleolimnological studies, simulation modeling, and small-scale enclosure experiments. Contributors describe consequences of predator-prey interactions, behavioral responses of fishes, diel vertical migration of zooplankton, plankton community change, primary production, nutrient cycling and microbial processes. Paleolimnological techniques enable the reconstruction of trophic interactions from past decades. Prospects for analyzing the interaction of food web structure and nutrient input in lakes are explored.1. Cascading trophic interactions; 2. Experimental lakes, manipulations and measurements; 3. Statistical analysis of the ecosystem experiments; 4. The fish populations; 5. Fish behavioral and community responses to manipulation; 6. Roles of fish predation: piscivory and planktivory; 7. Dynamics of the phantom midge: implications for zooplankton; 8. Zooplankton community dynamics; 9. Effects of predators and food supply and diel vertical migration of Daphnia; 10. Zooplankton biomass and body size; 11. Phytoplankton community dynamics; 12. Metalimnetic phytoplankton; 13. Primary production and its interactions with nutrients and light tlC$