### Chinese: 从2003年起，青海省实施封湖育鱼，禁止任何单位、集体和个人到青海湖及湖区主要河流及支流捕捞裸鲤，禁止销售裸鲤及其制品。
### English: Qinghai Province has implemented closed lake for breeding fish since 2003, and any unit, group or individual is forbidden to fish in Qinghai Lake and main rivers and tributary of the lake region, and <v>the sale or the naked carp or the products</v> is also forbidden.

### Improved English: From 2003, Qinghai province implemented the closure of lakes for fish breeding, prohibited any unit, collective or individual from fishing gymnocypris przewalskii in the main rivers and tributaries in the lake area, and prohibited the sale of gymnocypris przewalskii and their products.
