Behaviorally Mediated Larval Transport in Upwelling Systems

Figure 2

Depth regulation by larvae mediating cross-shore transport: depth preferences and vertical migrations. Larvae of some species prefer to occur in surface waters, and larvae of other species prefer to occur in bottom waters. Larvae also may undertake three types of vertical migrations: ontogenetic (descend late in development), diel (ascend at night and descend during the daytime), and tidal (descend during ebb tide and ascend during flood tide). Larvae of other species undertake reverse vertical migrations in the opposite directions.