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9 <br />h, when most had hatched. Jars were agitated and allowed to sit for <br />1/2 h, during which time unhatched eggs floated to the surface and <br />nauplil accumulated near bottom. The latter were siphoned to a <br />beaker. Density estimates were by five counts of 1.0 ml aliquots in a <br />Sedgewick-Rafter cell. Appropriate amounts were then removed and <br />prepared by dilution for various levels of feeding. Fish were fed <br />three times d'l at 8-h intervals. For purposes of discussion, levels <br />of foods were considered to be maintained at the nominal feeding rate, <br />e.g., a jar containing 50 nauplii L'l feeding'l (150 nauplii L l d 7l) <br />was considered as having 50 nauplii L 1. Jars (including those not <br />receiving food) were siphoned clean of acc mmalated food and organic <br />material and inspected for dead fish prior to each feeding. Dead <br />larvae were preserved in 5% buffered formalin. Not all dead fish were <br />recovered, in part because of their small size and rapid rate of <br />deco position; some must have floated to the surface of the jar, <br />beocming lodged beneath screens and not detected; and a few were <br />inadvertently killed by siphoning. Fish not recovered, and thus <br />unaccounted for, were considered mortalities. All recovered and . <br />observed mortalities were recorded by date, and if possible, measured <br />(TL). Larvae surviving to the ends of experiments were preserved and <br />TL measured. <br />f <br />X.??mer+t 1. Starvation. Mis experiment was designed to determine <br />the pattern of mortality for razorback sucker larvae in the total <br />absence of food. six jars were stocked with 10 individuals each. <br />v,