The recent rains will have taken care of them. Not sure if the fresh water kills them, sends them deep or on their way, but they vanish after a reasonable amount of rain, and it has rained a fair bit since last weekend.
Re: Pica Pica#85883 05/07/0410:36 AM05/07/0410:36 AM
Pica pica are the offspring of the thimble jellyfish. If exposed during one of these "blooms" you could be covered with several chicken pox like welts for up to 7 days. I've heard that a product "safesea" helps prevent the reaction.