一项长达一年的DNA研究发现天津海河有103种鱼类物种, A yearlong DNA study found 103 fish species in Tianjin’s Haihe River, with silver carp dominating, revealing seasonal biodiversity shifts.

通过使用环境DNA技术对海河进行了一年鱼类普查, 发现了17个类别的103种鱼类, 显示出水生生态系统的多样性, 主要由鱼, 特别是银鱼, 冬季占人口的近90%. A yearlong fish census of the Haihe River using environmental DNA technology identified 103 fish species across 17 orders, revealing a diverse aquatic ecosystem dominated by cyprinids, especially silver carp, which made up nearly 90% of the population in winter. 这项研究由天津师范大学在12个取样点进行,发现秋季生物多样性达到高峰,有75种物种,春季最低,与季节性繁殖周期有关。 Conducted by Tianjin Normal University across 12 sampling points, the study found peak biodiversity in autumn with 75 species, and lowest numbers in spring, linked to seasonal reproduction cycles. 分析水样DNA的非侵入方法提供了准确数据,无损于鱼类,支持养护和河流管理工作。 The non-invasive method, which analyzes DNA from water samples, provides accurate data without harming fish, supporting conservation and river management efforts.