走进北京水域,看水域中的鱼。北京地区野生鱼类资源明显减少,很多过去有记录的较常见的或能见到的种类,目前多已很难见到或数量急剧下降,例如,细鳞鱼、鳗鲡、鲚、尖头高原鳅、黄线薄鳅和鳜等已基本绝迹,马口鱼、中华多刺鱼、刺鳅、赤眼鳟等数量明显下降或分布区显著缩小,且北京自然水域鱼类的优势种进一步集中,京东及京南各河流,主要以抗污的鲫、麦穗鱼为主;拒马河优势种为麦穗鱼,所占比例竟然超过捕捞渔获物的80%。 Into the Beijing waters, see the fish in the water. Wild fish resources in Beijing have been significantly reduced. Many of the more common or visible species that have been recorded in the past have been hard to see or sharply decimated at present. For example, the fish species of eel, eel, 鲚, , The yellow loach and 鳜 and so on have been basically extinct, the number of sturgeon, Chinese spiny fish, loach, red-eye trout decreased significantly or the distribution area significantly reduced, and the dominant species of fish in Beijing natural waters to further focus Jingdong and Beijing South of the river, mainly to the anti-fouling crucian carp, wheat-based fish; dominant species of the Juma River wheat spike, accounting for more than 80% of the catch.