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AN ENGINEERING STUDY IN SCALE-UP OF FOOD UTILIZATION BY A NON-MOTILE FILTER FEEDER, CRASSOSTREA VIRGINICA (GMELIN).
Abstract
An approach for studying scale-up of food utilization by shellfish is presented. The approach is based on the fact that food concentration is a primary variable controlling food removal and growth of filter-feeders. Twenty raceways were constructed each approximating a tubular reactor by a series of ten stirred-tank reactors. Each section contained ten second-year oysters. Each raceway received water at a different combination of flow rate and relative food concentration. The relative concentrations were formulated by mixing unfiltered seawater with filtered seawater. The oysters were allowed to grow relatively undisturbed for a period of 121 days. Analysis of the weight growth data Indicate that scale-up of a filter-feeding system is possible using space time as a scaling factor. It is also demonstrated that higher conversions occur with lower concentrations. However, a much larger raceway is required to obtain the same amount of growth. A suitable relationship between growth and food concentration was found to be growth rate - k1 [concentration]alpha. An example is given on raceway design using the experimental data.
Subject Area
Ocean engineering
Recommended Citation
WALKER, PAUL NORVELL, "AN ENGINEERING STUDY IN SCALE-UP OF FOOD UTILIZATION BY A NON-MOTILE FILTER FEEDER, CRASSOSTREA VIRGINICA (GMELIN)." (1974). Doctoral Dissertations Available from Proquest. AAI7425914.
https://scholarworks.umass.edu/dissertations/AAI7425914