Images

Filtration system used for processing samples using a technique called polymerase chain reaction (PCR) or quantitative PCR (qPCR). 

Wire weight mounted on bridge crossing Blacks Fork, streamgage 09219200

Black River at Elyria, OH - bank side

Black River at Elyria, OH - view from the river bank

Hydrogeologic Framework Mapping - Long Island 

Stony Brook at Princeton (01401000) Gage House as seen from across the Creek.

Yellow Creek near Oak Grove, IN - downstream of bridge

Kīlauea Volcano's Kamokuna lava delta on October 6, 2017. Multiple streams of lava entering the ocean on both sides of the delta created small plumes of laze (lava haze). The visible part of the delta, which is deceptively stable, was built by many small lava flows accumulating on an unstable foundation of unconsolidated volcanic rock fragments. USGS photo by L.

Kīlauea Volcano's summit lava lake activity over the past few days has been typical, with intermittent sites of spattering and migration of the crust from north to south (top to bottom of image). This view of the lava lake was captured on the evening of Saturday, November 18.

East Fork Whitewater River at Richmond IN - view of left bank at the gage

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