[单项选择]Forget about the spurious benefits of eating shark fin soup, a traditional Asian delicacy that is said to be responsible for the needless destruction of some 73 million sharks a year. In Palau, the first country in the world to proclaim a shark sanctuary, the sharks that frequent the Pacific island country’s reefs generate enormous financial benefits. A single reef shark can contribute almost US $ 2 million in its lifetime to the economy of Palau.
The analysis quantified the economic benefits of the shark-diving industry to the Pacific island nation and found that its value far exceeded that of shark fishing. A research focused on hundreds of reef sharks that frequent the five major dive sites in Palau. The study did not take into account the sharks in Palau waters that do not regularly visit the dive sites. Because of their low rates of reproduction and late maturity, shark populations have been driven into a global decline due to fishing. Yet the study shows that these animals o
A. eating shark fin soup is hazardous
B. overfishing of sharks can have disastrous effects on ocean ecosystems
C. more countries should declare their waters to be a shark sanctuary
D. a balanced ecosystem is a win-win situation