Well, this is my most perplexing problem at the moment, those darn gizzard shad. Went to the aquaculture conference yesterday, saw a very interesting presentation on how the alwives (sp?) messed up Lake Michigan for a long time, they are in the same family as these g. shad. We have applied for a permit to do a fish kill, but still hoping that this winter may have killed some g. shad with ice/snow cover since November. Do these g.shad eat the largest zooplankton first so the zooplankton can't eat the algae like they usually do?
