One of the most critical functions of a fish's 'slime coat' is its role as a protective barrier against pathogens, including bacteria, fungi, and parasites. The mucous contains enzymes and antibodies that can neutralize invaders, preventing infections and diseases.

One of the most critical functions of a fish's 'slime coat' is its role as a protective barrier against pathogens, including bacteria, fungi, and parasites. The mucous contains enzymes and antibodies that can neutralize invaders, preventing infections and diseases.