16. 다음 글의 제목으로 가장 적절한 것은?

With the help of the scientist, the commercial fishing industry has found out that its fishing must be done scientifically if it is to be continued. With no fishing pressure on a fish population, the number of fish will reach a predictable level of abundance and stay there. The only fluctuation would be due to natural environmental factors, such as availability of food, proper temperature, and the like. If a fishery is developed to take these fish, their population can be maintained if the fishing harvest is small. The mackerel of the North Sea is a good example. If we increase the fishery and take more fish each year, we must be careful not to reduce the population below the ideal point where it can replace all of the fish we take out each year. If we fish at this level, called the maximum sustainable yield, we can maintain the greatest possible yield, year after year. If we catch too many, the number of fish will decrease each year until we fish ourselves out of a job. Examples of severely overfished animals are the blue whale of the Antarctic and the halibut of the North Atlantic. Fishing just the correct amount to maintain a maximum annual yield is both a science and an art. Research is constantly being done to help us better understand the fish population and how to utilize it to the maximum without depleting the population.

• 1
   Say No to Commercial Fishing
• 2
   Sea Farming Seen As a Fishy Business
• 3
   Why Does the Fishing Industry Need Science?
• 4
   Overfished Animals: Cases of Illegal Fishing