No, tuna are not found in the aphotic zone. The aphotic zone refers to the layers of the ocean where sunlight does not penetrate, typically starting at depths of around 200 meters (656 feet) and extending to the bed of the ocean.
Tuna are pelagic fish that thrive in well-lit, open waters. They are commonly found in the epipelagic zone, which is the top layer of the ocean where sunlight can penetrate, allowing for photosynthesis to occur. This layer extends to about 200 meters deep, where tuna hunt for their primary food sources, such as smaller fish and squid.
Furthermore, tuna are known for their fast swimming abilities and prefer warmer waters, making the shallow, sunlit zones more suitable for their lifestyle. The conditions in the aphotic zone, including extreme pressure and lack of light, are not conducive to the survival or behavior of tuna.