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Section Page I Conclusions 1
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abundance algal autumn average density axis of Lake benthic benthos biological biomass CATCH PER TRAWL catch per unit Ceriodaphnia chironomid larvae chironomids Chironomus cladoceran classes of bluegill concentration copepod Cyclops Daphnia Daphnia galeata decrease density at Station density relationship Diaptomus digestive rate drainage basins environmental estimated mean Euilydrilus hammoiensis Figure fish Helm ice-cover period ice-free period individuals per 660 July Lake Wingra large bluegill larvae length class Lepomis limnetic zone Limnodrilus hoffmeisteri Limnol liters littoral zone macrofood maximum numbers of individuals occurred oligochaetes open water optimization panfish pattern pelagic pelagic zooplankton Percent phytoplankton associations plankton predation pumpkinseed relationship between stations rotifers sampling dates sampling periods SEASONAL CHANGES seasonal trend sediment short axis spring stations Fig stomach content subsamples summer Tanypus sp temperature three size classes three stations TRAWL RUN unit effort white crappie winter yellow bass young-of-the-year zooplankton