Images

Clear Fork Mohican River at Belleville, Ohio - high water.

Huron River at Milan, OH - gage house

Huron River at Milan, OH - high water

A Crest Stage Gage

Here is a low-tech device made of solely of a metal pipe, a wooden pole, and crushed cork that is invaluable to providing a one-time measurement of the maximum height (stage) that a stream hits during a high-water event.

Christina Ahlstrom, USGS Alaska Science Center, reviews genomic sequencing results for antibiotic resistant bacteria recovered from wild bird samples collected at a landfill in southcentral Alaska. The USGS uses genomic information on antibiotic resistant bacteria in wild birds to understand transmission pathways and to identify potential threats to human, dome

Christina Ahlstrom, USGS Alaska Science Center, reviews genomic sequencing results for antibiotic resistant bacteria recovered from wild bird samples collected at a landfill in southcentral Alaska. The USGS uses genomic information on antibiotic resistant bacteria in wild birds to understand transmission pathways and to identify potential threats to human, dome

John Reed, USGS Alaska Science Center, reviews genetic screening results to detect avian malarial parasites in wild birds sampled in Alaska.  The USGS uses genetic screening and sequencing techniques to understand how parasites may affect wildlife populations within the United States.

John Reed, USGS Alaska Science Center, uses molecular techniques to screen blood samples collected from wild birds sampled in Alaska for avian malarial parasites. The USGS uses genetic screening and sequencing techniques to understand how parasites may affect wildlife populations within the United States.

John Reed, in the USGS Alaska Science Center Molecular Ecology Laboratory, uses molecular techniques to screen blood samples collected from wild birds sampled in Alaska for avian malarial parasites. The USGS uses genetic screening and sequencing techniques to understand how parasites may affect wildlife populations within the United States.

Hydrologic technician Sarah Davis measured low-flow discharge at USGS streamgage 06334500, Little Missouri River near Camp Crook, SD (https://waterdata.usgs.gov/sd/nwis/inventory/?site_no=06334500&agency_cd=USGS&) on November 16, 2017.&

Carman's River, Long Island, New York

Peconic River, Long Island, New York

Andy Reeves, in the USGS Alaska Science Center Molecular Ecology Laboratory, preparing to sequence influenza A viruses collected from wild birds sampled in Alaska.

View of Moku‘āweoweo's North Pit, looking to the west-southwest. The summit of Mauna Loa is the peak visible in the background, slightly left of center. The two linear features in the foreground are ramparts from previous fissure eruptions.

Tissue sections are mounted on glass slides, stained and examined with a microscope that magnifies cellular details up to 2,000 times with brightfield or fluorescence imaging. Microscopes are used in our research to understand the pathological changes caused by infectious agents such as bacteria, fungi, parasites and viruses.

Andy Reeves, in the USGS Alaska Science Center Molecular Ecology Laboratory, preparing to sequence influenza A viruses collected from wild birds sampled in Alaska.

Andy Reeves, USGS Alaska Science Center, prepares to sequence influenza A viruses in the Molecular Ecology Laboratory. The samples were collected from wild birds in Alaska.

Andy Reeves, in the USGS Alaska Science Center Molecular Ecology Laboratory, preparing to sequence influenza A viruses collected from wild birds sampled in Alaska.

USGS scientist Amy Simonson making a stream flow measurement in the Peconic River on Long Island, New York

Weir  or low dam at the Peconic River

Standard design broad crested weir control for streamgage on the Millstone River in NJ.