In the video, a person is seen wearing a blue glove on their left hand and using a knife in their right hand to cut open a fish. The fish is lying on a white surface, and the person is cutting from the head towards the tail. The fish appears to be a large one, and the person is carefully making incisions to remove the scales and flesh. The knife is silver and sharp, and the person is using it with precision to avoid damaging the fish's skin. The person's movements are steady and controlled, indicating that they are experienced in handling fish.