Breeding male central stoneroller fish
Detailed Description
USGS scientist holding a male central stoneroller caught in Underwood Creek at Wauwatosa, Wisconsin. https://waterdata.usgs.gov/monitoring-location/04087088/. This fish is native to Wisconsin; the tubercles (bumps) on its head indicate that it is spawning.
Sources/Usage
Public Domain.
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- Science
Below is science associated with this image.
MMSD Watercourse Corridor Study: Continuous Real-Time Streamflow
The MMSD Watercourse Corridor Study supports seven USGS streamflow gages on Milwaukee-area streams that measure real-time discharge and gage height; five of these sites also collect time-lapse videos.MMSD Watercourse Corridor Study: Contaminants in Water and Sediment
There are many kinds of chemical, physical, and biological contaminants contained in water and sediment, and new or “emerging” contaminants are continually being discovered. USGS investigations of contaminants in the MMSD Watercourse Corridor Study include studies of PFAS, PAHs, microplastics, and wastewater contamination as well as modeling long-term trends in water quality.MMSD Watercourse Corridor Study: Geomorphology and Sediment Studies Related to Stream and Estuary Rehabilitation
Geomorphology and habitat studies related to stream and estuary rehabilitation consist of three subproject areas: evaluating the efficacy of fish passage restoration efforts (across multiple watersheds), a targeted assessment of fish passage in the Underwood Creek watershed, and characterization of the Milwaukee River estuary.MMSD Watercourse Corridor Study: Ecological Assessments and Trends
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