Anxiety doesn't necessarily cause concentration problems as its own symptom. In fact, it could be argued that anxiety actually improves concentration. Anxiety is the activation of your fight or flight system, which is meant to keep you safe from harm by ensuring you're running away or fighting without distraction.
The first set up is a standard 20-25 pound test rig (depending on the size of the tuna) with a size 1 to 2/0 hook depending on bait size and the size of the tuna. Fluorocarbon leader can be super effective if the fish are touchy (biting infrequently). This set up will be the primary bait fishing set up.
So at most you can get: 45,000 x.42 = 18,900g of white meat per tuna per fish. 18,900/172 = 110 cans of Albacore tuna. Although for chunk light tuna there can be a mix of many different kinds of tuna, including Blue Fin which can weigh 250 kilograms [5].