Growth of Oyster (Crassostrea virginica) Larvae in Small-Scale Systems Using an Algae Concentrate Food Source

Figure 3

Larval survival (larvae mL⁻¹) in trial 2 by aeration type until appearance of first eyed larvae. The upper and lower boundaries of the box represent the highest and lowest survival among replicates, respectively. The center line indicates the survival of the third replicate. The average survival is represented by an X. The asterisk at 4 dpf represents a significant difference between the controls and the 1 mL air injector. Manual reductions of larval density occurred at 6 dpf (reduced to 4 larvae mL⁻¹) and 8 dpf (removed larvae less than 75 µm).