Larval Diel Vertical Migration of the Marine Gastropod Kelletia kelletii (Forbes, 1850)

Figure 2

Depth center of mass for Kelletia kelletii larvae throughout a 24 hr period in 9.5 d × 15 h cm columns (“short,” top panel) and 9.5 d × 125 h cm columns (“tall,” bottom panel) in treatments (𝑛=4) of ambient photoperiod (16 : 8 h, open squares) or dark only (0 : 24 h, black squares). Grey shading indicates lights off in the ambient photoperiod. Error bars represent ± 1 SE.