It's the time of year when everyone want to get the blues — bluefish, that is, along with albies and bonito, but hold the striped bass this year. The annual Martha's Vineyard Striped Bass and Bluefish Derby starts this weekend and will not conclude until mid-October, by which time any number of Islanders and visitors will be puffy-eyed and zombie-like, conditions brought on by a passion for the fishing competition that overwhelms lesser human endeavors such as sleep.