Our season here in NJ starts usually starts in June trolling, jigging and popping short of the canyon in the mid shore grounds...Bluefin are the primary target although you occasionally get some Yellowfins.
The timing of the canyon bite is usually determined when the warmer water shows up in the Canyon and that’s usually in July... This fishery typically starts off with a day troll bite where you can get Yellowfin, Longfin and Big Eyes since these fish usually don’t bite that time of year at night...
Once August rolls around most are doing overnight trips since the fish will start biting at night as well as trolling during the day... I would say that’s prime time here in NJ and where you can most reliably load up and that will last well into October. These troll and chunk trips is where I think you have the best chance to be on the meat.
Here’s an article I wrote on the subject, enjoy and hope it helps you..
https://www.njfishing.com/NJ_Tuna_Fishing.php
