Barracudas are preyed upon by larger fish, such as sharks, tuna, and dolphins.
Disease:
Barracudas can be affected by a variety of diseases, including bacterial infections, viral infections, and parasitic infestations.
Pollution:
Barracudas are sensitive to pollution, and exposure to high levels of pollutants can cause a variety of health problems, including respiratory problems, skin irritation, and cancer.
Overfishing:
Barracudas are a popular target for commercial and recreational fishing, and overfishing can lead to population declines.