St. Croix River hydroacoustics survey area.
Detailed Description
Figure 1. Proposed study area of the navigable portion of the St. Croix River from Taylor Falls, Minnesota, south to the High Bridge, north of Stillwater, Minnesota.
Sources/Usage
Public Domain.
Related
Hydroacoustic mapping for native mussel and host fish habitats using Quadrula fragosa and Ictalurus punctatus
The St. Croix National Scenic Riverway (SACN) is one of the best remaining refuges for declining populations of native unionid mussels in the United States and supports the only known self-sustaining population of the federally endangered Winged Mapleleaf ( Quadrula fragosa) in the Upper Mississippi River basin. Mussel fauna are important to the river ecosystem, providing important ecological...
Related
Hydroacoustic mapping for native mussel and host fish habitats using Quadrula fragosa and Ictalurus punctatus
The St. Croix National Scenic Riverway (SACN) is one of the best remaining refuges for declining populations of native unionid mussels in the United States and supports the only known self-sustaining population of the federally endangered Winged Mapleleaf ( Quadrula fragosa) in the Upper Mississippi River basin. Mussel fauna are important to the river ecosystem, providing important ecological...