Tecate cypress regeneration, showing charred, open cones on the branches of a dead cypress (top right of photo). Tecate cypress cones are serotinous, meaning they open in response to fire.
Images
See our science through the images below.
Filter Total Items: 3148
Open and charred Tecate cypress cones
Tecate cypress regeneration, showing charred, open cones on the branches of a dead cypress (top right of photo). Tecate cypress cones are serotinous, meaning they open in response to fire.
Atlantic Salmon Released into Beaverdam Brook
USGS employee Marisa Lubeck releases the day's last young Atlantic salmon into Beaverdam Brook in Altmar, N.Y.
Thousands of young Atlantic salmon are being released into Salmon River in an effort to restore this diminished Lake Ontario fish population, extending the sport fishing season by at least two months in Oswego County, N.Y.
USGS employee Marisa Lubeck releases the day's last young Atlantic salmon into Beaverdam Brook in Altmar, N.Y.
Thousands of young Atlantic salmon are being released into Salmon River in an effort to restore this diminished Lake Ontario fish population, extending the sport fishing season by at least two months in Oswego County, N.Y.
USGS Releases Atlantic Salmon at the Salmon River Fish Hatchery
USGS scientists (L to R) Ross Abbett and Rich Chiavelli watch as hundreds of salmon swim into troughs at the NY State Salmon River Fish Hatchery.
USGS scientists (L to R) Ross Abbett and Rich Chiavelli watch as hundreds of salmon swim into troughs at the NY State Salmon River Fish Hatchery.
Young Atlantic Salmon Reared at the USGS Tunison Lab in Cortland, N.Y.
Thousands of young Atlantic salmon are being released into Salmon River in an effort to restore this diminished Lake Ontario fish population, extending the sport fishing season by at least two months in Oswego County, N.Y.
Thousands of young Atlantic salmon are being released into Salmon River in an effort to restore this diminished Lake Ontario fish population, extending the sport fishing season by at least two months in Oswego County, N.Y.
Young Atlantic Salmon Reared at the USGS Tunison Lab in Cortland, N.Y.
Thousands of young Atlantic salmon are being released into Salmon River in an effort to restore this diminished Lake Ontario fish population, extending the sport fishing season by at least two months in Oswego County, N.Y.
Thousands of young Atlantic salmon are being released into Salmon River in an effort to restore this diminished Lake Ontario fish population, extending the sport fishing season by at least two months in Oswego County, N.Y.
Salmon Are Carefully Released Using Buckets
Thousands of young Atlantic salmon are being released into Salmon River in an effort to restore this diminished Lake Ontario fish population, extending the sport fishing season by at least two months in Oswego County, N.Y.
Thousands of young Atlantic salmon are being released into Salmon River in an effort to restore this diminished Lake Ontario fish population, extending the sport fishing season by at least two months in Oswego County, N.Y.
A Rainbow Trout Rests Among Cobble Substrate in Panther Creek
A rainbow trout rests among cobble substrate in Panther Creek downstream of Big Deer Creek, central Idaho. Panther Creek was severely damaged by heavy metals released from mining and milling activities at the former Blackbird Mine, and water quality in this section of the stream was acutely lethal to fish as late as 1985.
A rainbow trout rests among cobble substrate in Panther Creek downstream of Big Deer Creek, central Idaho. Panther Creek was severely damaged by heavy metals released from mining and milling activities at the former Blackbird Mine, and water quality in this section of the stream was acutely lethal to fish as late as 1985.
A Rainbow Trout Rests Among Substrate in Panther Creek
A rainbow trout rests among substrate in Panther Creek upstream of Big Deer Creek, central Idaho. Panther Creek was severely damaged by heavy metals released from mining and milling activities at the former Blackbird Mine. USGS and other scientists compiled a 30-year record of recovery of the stream’s fish and macroinvertebrate populations.
A rainbow trout rests among substrate in Panther Creek upstream of Big Deer Creek, central Idaho. Panther Creek was severely damaged by heavy metals released from mining and milling activities at the former Blackbird Mine. USGS and other scientists compiled a 30-year record of recovery of the stream’s fish and macroinvertebrate populations.
Panther Creek Upstream of Big Deer Creek, central Idaho
Panther Creek was severely damaged by heavy metals released from mining and milling activities at the former Blackbird Mine. USGS and other scientists compiled a 30-year record of recovery of the stream’s fish and macroinvertebrate populations.
Panther Creek was severely damaged by heavy metals released from mining and milling activities at the former Blackbird Mine. USGS and other scientists compiled a 30-year record of recovery of the stream’s fish and macroinvertebrate populations.
Green frog USGS photo by Mark Roth.jpg
A green frog blends in well in a grassy wetland. ARMI photo by Mark Roth. Northern Highland-American Legion State Forest, Wisconsin
A green frog blends in well in a grassy wetland. ARMI photo by Mark Roth. Northern Highland-American Legion State Forest, Wisconsin
Auwahi Reforestation Area, Maui
View of trees in the Auwahi reforestation area with glimpses of the invasive grassland in the distance.
View of trees in the Auwahi reforestation area with glimpses of the invasive grassland in the distance.
Auwahi Reforestation Area, Maui
View of the Auwahi reforestation area fence line with native species on the left and invasive grassland on the right.
View of the Auwahi reforestation area fence line with native species on the left and invasive grassland on the right.
Lamprey
River lamprey (L. Ayresii) ammoceote tail pattern.
River lamprey (L. Ayresii) ammoceote tail pattern.
Agassiz's Desert Tortoise
An Agassiz's desert tortoise hides in a burrow; a radio transmitter is attached to its shell as part of a USGS study.
An Agassiz's desert tortoise hides in a burrow; a radio transmitter is attached to its shell as part of a USGS study.
River Lamprey
Eyed juvenile river lamprey (Lampetra ayresii) caught in Skagit River smolt trap, 2011.
Eyed juvenile river lamprey (Lampetra ayresii) caught in Skagit River smolt trap, 2011.
Black-and-White Larval Sturgeon
Collected in the Lower Missouri River on May 20, 2011, near Arrow Rock, Missouri, this larval sturgeon is estimated to be one day old.
Collected in the Lower Missouri River on May 20, 2011, near Arrow Rock, Missouri, this larval sturgeon is estimated to be one day old.
Fairy Shrimp
A rare occurrence in the Missouri River, this Branchiopod known as a fairy shrimp was caught during larval sampling efforts near Arrow Rock, MO, on May 24, 2011.
A rare occurrence in the Missouri River, this Branchiopod known as a fairy shrimp was caught during larval sampling efforts near Arrow Rock, MO, on May 24, 2011.
Fish Eggs in Organic Debris
Ten minutes of larval sampling in the Missouri River on May 24, 2011, resulted in this mass of organic debris and fish eggs.
Ten minutes of larval sampling in the Missouri River on May 24, 2011, resulted in this mass of organic debris and fish eggs.
Green Sea Turtle on Loggerhead Key Beach
A Green sea turtle fitted with a USGS satellite tag on Loggerhead Key, Dry Tortugas National Park, Fl, USGS. Note: All marine turtle images taken in Florida were obtained with the approval of the U.S. Fish & Wildlife Service (USFWS) and the Florida Fish & Wildlife Conservation Commission (FWC), Marine Turtle Permit 176 issued to K.M.
A Green sea turtle fitted with a USGS satellite tag on Loggerhead Key, Dry Tortugas National Park, Fl, USGS. Note: All marine turtle images taken in Florida were obtained with the approval of the U.S. Fish & Wildlife Service (USFWS) and the Florida Fish & Wildlife Conservation Commission (FWC), Marine Turtle Permit 176 issued to K.M.
Larval Sampling Net
The contents of the net are flushed into the cod end, or the trailing end of the net where the fish are finally caught. The cod is then emptied into black bowls for sorting.
The contents of the net are flushed into the cod end, or the trailing end of the net where the fish are finally caught. The cod is then emptied into black bowls for sorting.
An Endangered Humpback Chub
The Colorado River basin supports one of the most distinctive fish communities in North America, including the federally endangered humpback chub (Gila cypha). One of only six remaining populations of this fish is found in Grand Canyon National Park, Arizona. USGS scientists and their cooperators are responsible for monitoring the Grand Canyon population.
The Colorado River basin supports one of the most distinctive fish communities in North America, including the federally endangered humpback chub (Gila cypha). One of only six remaining populations of this fish is found in Grand Canyon National Park, Arizona. USGS scientists and their cooperators are responsible for monitoring the Grand Canyon population.