Biologists prepare to tandem track a flooded Missouri River in search of telemetered Pallid Sturgeon.
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Tandem Tracking
Biologists prepare to tandem track a flooded Missouri River in search of telemetered Pallid Sturgeon.
Hydrophone
Specialized, directional, underwater microphones, or hydrophones are lowered into the water to “hear” acoustic tags implanted in pallid sturgeon.
Specialized, directional, underwater microphones, or hydrophones are lowered into the water to “hear” acoustic tags implanted in pallid sturgeon.
Larval Acipenseriformes
Acipenseriformes (sturgeon and paddlefish) larvae are somewhat easy to spot in the field thanks to their large yolk sac (yellow arrow). However, a microscope is necessary to differentiate between the two.
Acipenseriformes (sturgeon and paddlefish) larvae are somewhat easy to spot in the field thanks to their large yolk sac (yellow arrow). However, a microscope is necessary to differentiate between the two.
Endangered Burrowing Owl
An endangered Burrowing Owl near a site in Cape Coral, FL.
An endangered Burrowing Owl near a site in Cape Coral, FL.
Measuring in the Everglades
While performing a Flowtracker measurement off of a bridge, a curious gator comes to investigate.
While performing a Flowtracker measurement off of a bridge, a curious gator comes to investigate.
Studying Marsh Subsidence
National Wetlands Research Center workers set bench marks to study marsh subsidence.
National Wetlands Research Center workers set bench marks to study marsh subsidence.
Miradiscops panamensis
Miradiscops panamensis shell viewed with a scanning electron microscope with aperture facing up.
Miradiscops panamensis shell viewed with a scanning electron microscope with aperture facing up.
Lucidella lirata
Lucidella lirata shell viewed with a scanning electron microscope.
Lucidella lirata shell viewed with a scanning electron microscope.
Miradiscops opal
Miradiscops opal shell viewed with a scanning electron microscope with aperture facing up.
Miradiscops opal shell viewed with a scanning electron microscope with aperture facing up.
Yam Babybody Snail (Pupisoma dioscoricola)
Pupisoma dioscoricola shell viewed with a scanning electron microscope.
Pupisoma dioscoricola shell viewed with a scanning electron microscope.
Ribbed Pinwheel Snail (Radiodiscus millecostatus)
Radiodiscus millecostatus shell viewed with a scanning electron microscope.
Radiodiscus millecostatus shell viewed 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.
Spiraxis sp.
Spiraxis sp. shell viewed with a scanning electron microscope with aperture facing up.
Spiraxis sp. shell viewed with a scanning electron microscope with aperture facing up.
Median Striate Snail (Striatura meridionalis)
Striatura meridionalis shell viewed with a scanning electron microscope.
Striatura meridionalis shell viewed with a scanning electron microscope.
Ornamented Bivalve Mollusk
Bivalve mollusk with a highly-ornamented shell. (Scanned From Negative)
Bivalve mollusk with a highly-ornamented shell. (Scanned From Negative)
Glittering-bellied Emerald (Chlorostilbon aureoventris)
Glittering-bellied Emerald (Chlorostilbon aureoventris)A male perched on a pitcher
Oil Well
Oil well and a looming storm.
Brine Pit
Brine pit in Sheridan County, Montana.
Brine pit in Sheridan County, Montana.
Prairie Pothole Region
Prairie Pothole Region landscape showing high wetland density.
Prairie Pothole Region landscape showing high wetland density.
Northern Leopard Frog
Northern Leopard Frog (Rana pipiens).
Northern Leopard Frog (Rana pipiens).
Scientist Taking Water Samples
Todd Preston, USGS contract scientist, collecting a surface-water sample from a Prairie Pothole wetland.
Todd Preston, USGS contract scientist, collecting a surface-water sample from a Prairie Pothole wetland.