Go when tides change, also sunset and sun rise. Try different depths, if you’re on a pier they will be biting on one part of the pier and not the other. So try different areas. I doubt you can drive, if you can get to other piers, or areas do that. Crabs may not be there right now. Sometimes crabbing is dead for a week and abundant the next.
I was informed that It is different for different area's. Thats how it is in MD, I don't know about your area.
lol. Im from SC and thats how it is here too....Also Switch Your bait up too...If you use a good bait Crabs will venture to you! Chicken is for tourist lol.......Use a good oily Fish! Cut it a lil bit and make it Bleed Since your Pier Crabbing The scent and blood will carry along the shore releasing the oils in the blood that attract them...