This document discusses Japanese culture and water. It focuses on overfishing of Pacific bluefin tuna. The document notes that the bluefin tuna population has dropped 96% and Japan consumes 90% of the world's bluefin tuna. Overfishing is a major problem because if bluefin tuna are destroyed, it could damage the food chain and ecosystem. The high demand for bluefin tuna in Japan has led to an auction where a single bluefin tuna sold for $1.5 million in 2013.