Steven A. Lewis

The large number of meter net samples needed to determine the spawning success of various species of fish in Canton Reservoir, Oklahoma, made subsampling advantageous. The basic Folsom plankton splitter was enlarged and modified so that meter net samples with volumes up,to 4,000 m\\. could be split into IO approximately equal subsamples. The splitter was constructed from a 12 inch diameter Plexiglas2 cylinder. Construction was accomplished using common shop tools. Chi-square tests (0.05 level) showed that there were no significant differences between the observed subsample counts and the...