洄游鱼类数量减少促使人们争取保护 2026 年 3 月 24 日 分享 保存 添加为 Google 首选 Esme Stallard 气候与科学记者 通过河流、湖泊和池塘进行大规模迁徙的鱼类面临着水坝、污染和过度捕捞的综合威胁，导致它们无法到达繁殖地。
The golden mahseer and goonch catfish are some of the thirty flagship fish species which have now been prioritised for global conservation by the UN in a new report。
A team of international scientists assessed more than 15,000 species of freshwater migratory fish – which make up half of all fish species – and found their numbers had dropped by an estimated 81% in the last half century。
作者表示，这个群体长期以来一直被忽视，但“是人们生计的重要组成部分”。
“Freshwater fish support hundreds of millions of people around the world, so for humans, they’re very important,” said Dr。
“有些鱼的重量可以超过 650 磅（295 公斤），可以迁徙超过 7,000 英里。
来源：BBC Science
