Images

Photo of the Deleware River near Lambertville, NJ and New Hope, PA.

Scientists reviewing data to determine instrument performance at the Algal Toxins Laboratory in Lawrence Kansas.

Captive Japanese quail (Coturnix japonica), and wheat seeds with (brown) and without (cream) pesticide coatings used to treat insect pests. 

American kestrel  (Falco sparverius) 

American kestrel (Falco sparverius)

American kestrel eggs

Biplot of principal component analysis of soil elemental composition data. Background and enriched samples are denoted. Colored points are from potentially enriched soils at mine sites, and black points are from unmined background sites. The effect of different elements on the analysis is shown by the rays, which are labeled to identify the elements.

Native seedling establishing in a Connectivity Modifier in a reclamation experiment. Photo: Mike Duniway

Kanab North reclamation study site informational sign. These signs identify the project benefits in mining, jobs and the environment.

A cyanobacterial bloom in late fall at Ash River Harbor in Kabetogama Lake, Voyageurs National Park

Cyanobacterial bloom at Kabetogama Lake in Voyageurs National Park

Cyanobacterial bloom in Kabetogama Lake with fall leaves in the background

Panoramic view of scientists in boat on Hells Canyon Reservoir, Idaho

Particulate matter captured on a quartz fiber filter at the Mercury Research Laboratory.

Algal bloom near the Ash River boat dock, a public access point for boating and fishing on Kabetogama Lake. Microcystin has been detected at this location and at nearby Sullivan Bay at concentrations exceeding recreational guidelines.

An algal bloom near the Ash River Visitor Center at Kabetogama Lake, where visitors enjoy picnics and trails year-round.

Eosin-nigrosin staining of spermatozoa from common carp (Cyprinus carpio) testes collected from the Lake Mead National Recreation Area, Nevada

Draining overlying water from sedimentation sampler at Brownlee Reservoir, Idaho.

Tablet-enabled field forms have been developed to help coordinate field efforts, collect site information, GPS coordinates, photos, and control data collection.

A USGS scientist prepares a sample to test the effect of antibiotics on denitrifying bacteria within a glove box. A glove box allows scientists to work with samples in an anaerobic (no oxygen) atmosphere, the conditions under which denitrification occurs.

Molecular Devices ImageXpress^† High-Content Imaging System