【摘要】 依据作者历年研究资料,结合近3年调查结果,初步整理出汉江陕西段鱼类物种多样性 107种,隶属7目17科．其中鲤科鱼类63种,占物种多样性的59．43％．其次为鲿科13种．结果表明,由于湿地环境日趋恶化、功能日渐衰退,鱼类物种多样性面临极大威胁,由绝迹至易危的物种多达19种,占整个物种数的17．75％,汉江鱼类物种多样性前途令人堪忧．据此提出了有针对性的建议,即尽快建设汉江湿地自然保护区,以恢复湿地功能,保护鱼类物种多样性．更多还原

【Abstract】 Seven orders, seventeen families and one hundred and seven fish species have been found in Hanjiang River on three years’ investigation. Among these, there are sixty-three Cyprinidae and thirteen Bagridae species, occupying 59.43% and 12.15% respectively. The results indicated that the extinct and vulnerable species have been up to 19 species with the environment depravation. The status must attract much attention by concerned government department.更多还原