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.
Size: Exceed 10 feet in length and weights over 1,000 pounds, making them among the largest bony fish in the world. However, most are commonly see at 78 inches. One-year-old tuna are about 10 pounds and age 2-4 bluefin tuna are typically 20-80 pounds. 'Giant' is a subjective term used for mature bluefin tuna that typically are at least 10 years old and 200 pounds or more.