Field measurements for characterizing salmon spawning habitat in two restored reaches of the lower Merced River, California

To support an investigation of the effectiveness of a large-scale river restoration project, several types of field data were collected from two gravel-bed reaches of the regulated lower Merced River in California's Central Valley, primarily in the fall of 2016. These data sets were intended to characterize salmon spawning habitat and identify factors influencing spawning site selection. This parent data release includes links to child pages for the following data sets: 1) Bulk samples of streambed sediment used to characterize the subsurface grain size distribution. 2) Pebble counts used to characterize the sediment grain size distribution of the bed surface. 3) Force gage measurements used to parameterize a...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Central Valley, Ecology, Geomorphology, Gravel friction angle, All tags... Habitat, Merced River, River, River restoration, Salmon, Sediment, Streambed hydraulic conductivity, USGS Science Data Catalog (SDC), Water Resources, Wildlife Biology, flow modeling, spawning, Fewer tags