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Stomach Capacity, Digestion Rate, And 24-Hour Consumption Rate For The Bear Lake Sculpin (Cottus Extensus), Joseph H. Williamson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A curvilinear regression model was used to determine an expected stomach capacity for any size Bear Lake sculpin with a standard length between 4-9.5 centimeters. Stomach contents were then expressed as a percent fullness and the change in percent fullness with time intervals was used to compute an instantaneous digestion rate. The instantaneous consumption rate was computed by the formula C=log P₁ - log P₀ +d, where C = instantaneous consumption rate. The amount of food consumed during a time interval was computed from the formula I_t=C_tS_t, where I_t=amount of …