Two Centrarchid larvae sampled in the Missouri River near Plattsmouth.
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Centrarchid
Two Centrarchid larvae sampled in the Missouri River near Plattsmouth.
Catostomid&Centrarchid
Two Centrarchid larvae and one Catostomid larvae sampled in the Missouri River near Plattsmouth.
Two Centrarchid larvae and one Catostomid larvae sampled in the Missouri River near Plattsmouth.
Inspecting the Eggs
The quality of pallid sturgeon eggs is verified under the microscope prior to fertilization.
The quality of pallid sturgeon eggs is verified under the microscope prior to fertilization.
Pallid Sturgeon Eggs on Gravel Substrate
Fertilized pallid sturgeon eggs become sticky and adhere to gravel substrate.
Fertilized pallid sturgeon eggs become sticky and adhere to gravel substrate.
Pallid Sturgeon Egg Dispersal
Fertilized pallid sturgeon eggs are gently dispersed over the gravel substrate. The PVC pipes are used to support a canopy of shade cloth to more closely mimic the muddy depths of the Missouri River.
Fertilized pallid sturgeon eggs are gently dispersed over the gravel substrate. The PVC pipes are used to support a canopy of shade cloth to more closely mimic the muddy depths of the Missouri River.
Male Barrow's Goldeneye
Barrow's Goldeneye breeding habitat consists of wooded lakes and ponds in northwestern North America, eastern Canada and Iceland. Females sometimes lay eggs in the nests of other cavity-nesting ducks and it's not uncommon for Barrow's and Common Goldeneyes to hybridize.
Barrow's Goldeneye breeding habitat consists of wooded lakes and ponds in northwestern North America, eastern Canada and Iceland. Females sometimes lay eggs in the nests of other cavity-nesting ducks and it's not uncommon for Barrow's and Common Goldeneyes to hybridize.
Deep Sea Rockling Fish Among Mussels
A species of rockling (Family Lotidae), related to hakes and cods, rests among the mussels. Images courtesy Deepwater Canyons 2013 - Pathways to the Abyss expedition, NOAA-OER/BOEM/USGS.
A species of rockling (Family Lotidae), related to hakes and cods, rests among the mussels. Images courtesy Deepwater Canyons 2013 - Pathways to the Abyss expedition, NOAA-OER/BOEM/USGS.
Brown Trout
Idaho Water Science Center biologists work with Silver Creek Preserve staff and volunteers to collect, examine, identify, measure, and count fish populations.
Idaho Water Science Center biologists work with Silver Creek Preserve staff and volunteers to collect, examine, identify, measure, and count fish populations.
Green Sea Turtle Release from Boat
USGS biologists Kristen Hart, Jeff Beauchamp, and Thomas Shelby prepare to release a green sea turtle fitted with a satellite tag in the waters of Dry Tortugas National Park. Note: All marine turtle images taken in Florida were obtained with the approval of the U.S.
USGS biologists Kristen Hart, Jeff Beauchamp, and Thomas Shelby prepare to release a green sea turtle fitted with a satellite tag in the waters of Dry Tortugas National Park. Note: All marine turtle images taken in Florida were obtained with the approval of the U.S.
Grand Canyon sunset from South Rim
Grand Canyon sunset from South Rim taken during USGS field work, April 2013.
Grand Canyon sunset from South Rim taken during USGS field work, April 2013.
USGS and USFS scientists installing dust collectors at the Pinyon Plain uranium mine.
USGS and USFS scientists installing dust collectors at the Pinyon Plain uranium mine.USGS and USFS scientists installing dust collectors at the Pinyon Plain uranium mine. Photo: Mike Duniway. 4/9/2013.
USGS and USFS scientists installing dust collectors at the Pinyon Plain uranium mine.
USGS and USFS scientists installing dust collectors at the Pinyon Plain uranium mine.USGS and USFS scientists installing dust collectors at the Pinyon Plain uranium mine. Photo: Mike Duniway. 4/9/2013.
Boinin Petrel Chick
Boinin petrel chick, a subterranean nesting seabird especially vulnerable to sea-level rise.
Location: Midway Atoll National Wildlife Refuge
Boinin petrel chick, a subterranean nesting seabird especially vulnerable to sea-level rise.
Location: Midway Atoll National Wildlife Refuge
Laysan Albatross and Bonin Petrel Chick
Laysan albatross and Bonin petrel chick, two seabird species especially vulnerable to sea-level rise and sudden flooding on low-lying islands.
Location: Midway Atoll National Wildlife Refuge
Laysan albatross and Bonin petrel chick, two seabird species especially vulnerable to sea-level rise and sudden flooding on low-lying islands.
Location: Midway Atoll National Wildlife Refuge
Black-capped Chickadee with a deformed beak that has grown long and curved down
Black-capped Chickadee with a deformed beak that has grown long and curved downA Black-capped Chickadee with a beak that has grown long and curved down. Avian keratin disorder (AKD) is a disease characterized by debilitating beak overgrowth and other abnormalities of keratinized tissues. Affected birds have difficulty feeding and preening and may suffer high rates of mortality.
Black-capped Chickadee with a deformed beak that has grown long and curved down
Black-capped Chickadee with a deformed beak that has grown long and curved downA Black-capped Chickadee with a beak that has grown long and curved down. Avian keratin disorder (AKD) is a disease characterized by debilitating beak overgrowth and other abnormalities of keratinized tissues. Affected birds have difficulty feeding and preening and may suffer high rates of mortality.
Drilling Rig for Shale Gas Development
A drilling rig for shale gas development take at night from an overlook on Route 6 in Bradford County Pennsylvania.
A drilling rig for shale gas development take at night from an overlook on Route 6 in Bradford County Pennsylvania.
Adult Female Deer Tick
Ticks spread the widest variety of diseases that are harmful to humans, including Lyme disease. This image shows an adult female blacklegged tick, or deer tick.
Ticks spread the widest variety of diseases that are harmful to humans, including Lyme disease. This image shows an adult female blacklegged tick, or deer tick.
Sample bottles from pump sampler on the Elwha River
Sample bottles from pump sampler on the Elwha RiverSample bottle carousel from automated ISCO pump sampler deployed on the Elwha River, Washington to obtain suspended sediment samples.
Sample bottles from pump sampler on the Elwha River
Sample bottles from pump sampler on the Elwha RiverSample bottle carousel from automated ISCO pump sampler deployed on the Elwha River, Washington to obtain suspended sediment samples.
Northern long-eared bat with visible symptoms of WNS
Northern long-eared bat with visible symptoms of WNSMyotis septentrionalis, northern myotis (Vespertilionidae) with growth of Geomyces destructans clearly evident.
Northern long-eared bat with visible symptoms of WNS
Northern long-eared bat with visible symptoms of WNSMyotis septentrionalis, northern myotis (Vespertilionidae) with growth of Geomyces destructans clearly evident.
Sea Lamprey Parasitic
Parasitic mouth of the invasive sea lamprey
Parasitic mouth of the invasive sea lamprey
Red-cockaded woodpecker
The red-cockaded woodpecker is a federally listed species that declined in the southeastern United States from approximately 1.6 million cooperative breeding groups to less than 3,500 groups due to loss and degradation of habitat and fire suppression.
The red-cockaded woodpecker is a federally listed species that declined in the southeastern United States from approximately 1.6 million cooperative breeding groups to less than 3,500 groups due to loss and degradation of habitat and fire suppression.
Clark's Grebe at Thermalito Afterbay, CA
Clark's grebe sitting on a nest at Thermalito Afterbay, California.
Clark's grebe sitting on a nest at Thermalito Afterbay, California.