Figure 1

The location of sampling sties in study area. S1–S10 are located in Jinhewan Wetland, S11–S17 are located in the Harbin Section of the Songhua River. The map was generated by ArcGIS Desktop v10.2 (www.arcgis.com).

The location of sampling sties in study area. S1–S10 are located in Jinhewan Wetland, S11–S17 are located in the Harbin Section of the Songhua River. The map was generated by ArcGIS Desktop v10.2 (www.arcgis.com).