1、 Over-fishing by 成麗華 王云鳳 Definitions: Fishing too much of certain fishes, making it not enough to multiply and replenish the number of their populations， which degrades(使退化) the whole ecosystem.Present situation:In the whole world:Date given by Food and Agriculture Organization of UN in 2006 showing

2、 that among the worldwide fish resourses,52% have been fully exploited;20% have been moderately exploited; 17% have been over-exploited; 7% have been basically exhausted; 1% are recovering from exhaustion. In China：Compared with 10 years ago , Chinas fishery resources have been influenced by over-fi

3、shing. Chinas four major fishery: the fishing ground of Bohai , Zhoushan, the South sea and the fishing ground of Beibu Gulf have badly degraded(退化) since the 1950s.Influence:Over-fishing blow the ecosystem destructively , without it, fishery is impossible.First of all, over-fishing destroys fish re

4、sources. with the kinds of fishes becoming less , there are fewer fishes to hunt for. For example , the quality of available fishes is declining . Due to over-fishing, the nutritional declining , younger age and miniaturization(小型化) and the overall quality are getting worse and worse.Secondly : over

5、-fishing destroys biodiversity.For instance, the large yellow croaker and the little yellow croaker, which were universal delicacy in our daily life ,have been listed into protected fishes.Lastly: over-fishing presses ecosystem heavily.Recently ,the jellyfish has increased numerously in the waters o

6、f the Yellow Sea to the Sea of Japan. For example, the reduce of large carnivorous fish imbalances the ecosystem. Solutions : The urgent circumstances require us to take immediate measures.First of all , we must make strict restriction over the amount of fishing . Whats more, capturing all in one ne

7、t(一網(wǎng)打盡) must be forbidden.Secondly : protection zones should be set up in some key areas where havent been subjected to large-scale human disturbance , like original waters, coral reefs and so on.Besides :strengthen supervision and law enforcement, perform fishing regulation strictly.Whats more: enha