volume obtained by the number of conch/ml (Table 3). Once the

Percent recovery is defined as the proportion of juveniles remaining on the sorting screen 10-16 days after metamorphosis divided by the total number of larvae induced. Recovery is therefore a minimum estimate of the percent of larvae which successfully completed metamorphosis, for it does not include the runts, but does take into consideration post metamorphic mortality. Average recovery of veligers induced is usually 75% (Davis et al., 1990).