Barracuda is outstanding and safe to eat certain times of the year. Only poisonous to eat a few months of the year when they contain higher levels of ciguatera toxins. I am sure if your fisherman sent you home to eat it that this time of year is fine. If you were sick you'd likely be going to the bathroom and have muscle aches/pains tingling, sweating/chills, itching, or be naucious/dizziness.