All the fish in San Francisco Bay respond one way or another to the ever changing tides and currents that run through the bay. The first thing to get is a good tide and current book. I like mine to be printed in military time, with the tides and currents listed in chronological order. I once had a tide book with all of the low tides on one side and all of the high tides on the other side and you had to do a kind of mental Texas Two-Step going back and forth to figure out what tide was happening when. I got so dizzy that I had to take some Dramamine just to read the darn thing.
Tide is the vertical movement of water and is measured in feet.
A one foot difference between two consecutive tides is considered a weak tide. A seven foot difference between two consecutive tides is considered a strong tide. Last time, by way of review, we were looking into tides and currents, that tides are vertical movements of water and are measured in feet, and that currents are horizontal movements of water and are measured in knots. It was also mentioned that by knowing the tide and current preferences of different target species, you can optimize your fishing time and then find time to visit your Aunt Bertha. The fishing should peak at the top of the tide.