These different characteristics of white shrimp may
result in more or less genetic differentiation. Pelagic larvae
and adult migrations provide opportunities for genetic
mixing while large populations slow differentiation. Alternatively,
population bottlenecks and high reproductive
variance may lead to low effective population sizes and
measurable fluctuations in gene frequencies over either
geographical or temporal scales. The duration and geographical
extent of the effect would depend upon the level
of gene flow among affected and unaffected populations