USGS Alaska Science Center biologist George Esslinger seeks relief from the hot California sun and his smothering drysuit, as he and his crew catch a rare break during a day of capturing and tagging wild sea otters.
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Kept Kelp Cool
USGS Alaska Science Center biologist George Esslinger seeks relief from the hot California sun and his smothering drysuit, as he and his crew catch a rare break during a day of capturing and tagging wild sea otters.
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Desert Survey
USGS research is at the intersection of geology and biology – the whole of the desert.
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USGS research is at the intersection of geology and biology – the whole of the desert.
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Montana Dive Site
GLSC dive team called to do inspection of Kalispell for zebra mussels.
GLSC dive team called to do inspection of Kalispell for zebra mussels.
Predator in Waiting
Driving along the road to our next site and came upon this hawk on a dead tree.
Driving along the road to our next site and came upon this hawk on a dead tree.
Rice Plants Grown With and Without Endophytes
These rice plants show the difference in growth of rice plants exposed to salt when grown with and without endophytes, which are mutually beneficial microscopic fungi that live in most plants.
These rice plants show the difference in growth of rice plants exposed to salt when grown with and without endophytes, which are mutually beneficial microscopic fungi that live in most plants.
DST Implantation
Data storage tags (DST) implanted in telemetered pallid sturgeon record the water temperture and fish depth at pre-programed time intervals.
Data storage tags (DST) implanted in telemetered pallid sturgeon record the water temperture and fish depth at pre-programed time intervals.
Pregnant Pocketbook Mussel
Study chamber containing a pregnant pocketbook mussel (Lampsilis cardium) exposed to an elevated water temperature of 32 degrees Celsius. This mussel is showing signs of stress--lying on top of the substrate and unable to burrow.
Study chamber containing a pregnant pocketbook mussel (Lampsilis cardium) exposed to an elevated water temperature of 32 degrees Celsius. This mussel is showing signs of stress--lying on top of the substrate and unable to burrow.
Newly Hatched Pallid
Newly hatched pallid sturgeon propagated at the Columbia Environmental Research Center.
Newly hatched pallid sturgeon propagated at the Columbia Environmental Research Center.
Bat Necropsy
The USGS National Wildlife Health Center conducts a bat autopsy as part of its efforts to study the fungus that causes white-nose syndrome in bats.
The USGS National Wildlife Health Center conducts a bat autopsy as part of its efforts to study the fungus that causes white-nose syndrome in bats.
Elwha River Survey
A Washington Department of Ecology scientist maps the bathymetry of the mouth of the Elwha River using an integrated GPS and echo sounder on a personal watercraft.
A Washington Department of Ecology scientist maps the bathymetry of the mouth of the Elwha River using an integrated GPS and echo sounder on a personal watercraft.
Doug Berndt Evaluated Bacterial Assay
USGS microbiology technician evaluates a bacterial assay to determine the cause of a wildlife mortality. The USGS National Wildlife Health Center works to identify, track, and prevent wildlife disease.
USGS microbiology technician evaluates a bacterial assay to determine the cause of a wildlife mortality. The USGS National Wildlife Health Center works to identify, track, and prevent wildlife disease.
Releasing a Pallid Sturgeon
Female pallid sturgeon, PLS11-007, is released back into the Missouri River after an ultrasound evaluation of her reproductive condition.
Female pallid sturgeon, PLS11-007, is released back into the Missouri River after an ultrasound evaluation of her reproductive condition.
Sunrise on the Sacramento River
Sunrise reflecting on a November morning on the Sacramento River, California.
Sunrise reflecting on a November morning on the Sacramento River, California.
Lowering a Hydroacoustic Transducer
Mikhail Malin, visiting IBIW scientist, prepares to lowers a hydroacoustic transducer into the water from a CERC research vessel below Bagnell Dam on the Osage River, Missouri. The CERC and IBIW collaborated with the Missouri Cooperative Fish and Wildlife Research Unit at the University of Missouri to assess the distribution of paddlefish below the dam us
Mikhail Malin, visiting IBIW scientist, prepares to lowers a hydroacoustic transducer into the water from a CERC research vessel below Bagnell Dam on the Osage River, Missouri. The CERC and IBIW collaborated with the Missouri Cooperative Fish and Wildlife Research Unit at the University of Missouri to assess the distribution of paddlefish below the dam us
Newly Reconstructed Pond
Beau Griffith, a biological technician at CERC, stands at the bottom of one of the newly reconstructed ponds designed to conduct long-term studies with sturgeon and other riverine species. A divider and circulators can be installed in the sandy-bottomed ponds to create the continuous water current that sturgeon prefer.
Beau Griffith, a biological technician at CERC, stands at the bottom of one of the newly reconstructed ponds designed to conduct long-term studies with sturgeon and other riverine species. A divider and circulators can be installed in the sandy-bottomed ponds to create the continuous water current that sturgeon prefer.
USA-NPN Citizen-Scientist Lucille Tower
USA-National Phenology Network citizen-scientist Lucille Tower records the one millionth observation on maple vine in the large nature database.
USA-National Phenology Network citizen-scientist Lucille Tower records the one millionth observation on maple vine in the large nature database.
Herpetology
A USGS herpetologist with a Sonora Mud Turtle (Kinosternon sonoriense; photo left) and Red-eared Slider (Trachemys scripta elegans;
photo right) at Montezuma Well, Montezuma Castle National Monument.
A USGS herpetologist with a Sonora Mud Turtle (Kinosternon sonoriense; photo left) and Red-eared Slider (Trachemys scripta elegans;
photo right) at Montezuma Well, Montezuma Castle National Monument.
Minute Gem Snail (Hawaiia minuscula)
Hawaiia minuscula shell viewed with a scanning electron microscope with aperture facing up.
Hawaiia minuscula shell viewed with a scanning electron microscope with aperture facing up.
Glossy Granule Snail (Guppya gundlachi)
Ventral view of Guppya gundlachi shell observed with a scanning electron microscope.
Ventral view of Guppya gundlachi shell observed with a scanning electron microscope.
Ribbed Pinwheel Snail (Radiodiscus millecostatus)
Radiodiscus millecostatus shell viewed with a scanning electron microscope with aperture facing up.
Radiodiscus millecostatus shell viewed with a scanning electron microscope with aperture facing up.