Intermittency in Turbulent Marine Boundary Layers: Significance to Colonization of Surfaces by Larvae.

摘要

Our goals have been to assess some of the mechanisms by which hydrodynamic processes in turbulent boundary layers affect rates of colonization of surfaces by planktonic larvae of diverse benthic invertebrates. More specifically, we have worked to determine the extent to which the spatial and temporal nature of turbulence affects the supply of larvae to a surface and the advection (removal) of larvae from a surface, once it is contacted. Specific Objectives are to understand the effects of particle settling and turbulent mixing on rates of supply of larvae to surfaces. Also, to understand effects of turbulent drag forces (imposed by fluid shear) on probabilities of retention of larvae on surfaces, once they are contacted. We have assessed the influence of time of contact on the attachment strengths of larvae to a surface.