Images

A USGS streamgage station lies mostly submerged. Following rising floodwaters during the 2011 flood, USGS crews removed sensitive streamgage equipment and replaced them with special, pressure-operated streamgage monitoring equipment that could survive being inundated with water.

The Little Missouri River rising in Medora, ND.

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 camp lies flooded on the edge of the Florida Gas Canal. Rising floodwaters during the 2011 flood have inundated many hunting camps and residences. Flooded even before the additional water from the Morganza Spillway arrived, these camps were built on land that is usually well above the water level and safely back from the canal's edge.

Invasive Giant Salvinia clogs one end of Lake Murphy. Lake Murphy is home to three of Louisiana's most problematic invasive aquatic plant species: Giant Salvinia, Water Hyacinth, and Hydrilla. As the record-setting 2011 floodwaters push through the Atchafalaya Basin, USGS crews are monitoring these invasive species to see what effects the water have on them.

Invasive species Giant Salvinia and Water Hyacinth clog one end of Lake Murphy. Lake Murphy is home to three of Louisiana’s most problematic invasive aquatic plant species: Giant Salvinia, Water Hyacinth, and Hydrilla.

A USGS streamgage station lies mostly submerged. Following rising floodwaters during the 2011 flood, USGS crews removed sensitive streamgage equipment and replaced them with special, pressure-operated streamgage monitoring equipment that could survive being inundated with water.

USGS Louisiana Water Science Center Director George Arcement looks at a houseboat parked on the north end of Lake Murphy. Houseboats are a common feature in the Atchafalaya Basin, where people live in them year round, or merely keep them as a hunting or vacation camp.

A houseboat lies at anchor in the Florida Gas Canal. Houseboats are a common feature in the Atchafalaya Basin, where people live in them year round, or merely keep them as a hunting or vacation camp. Many of them are riding out the 2011 floodwaters by raising or lowering the mooring ropes that anchor them to trees.

Left to Right: Phil Turnipseed, T Bradley Keith

Invasive species Giant Salvinia, Hydrilla, and Water Hyacinth clog one end of Lake Murphy. Lake Murphy is home to these three of Louisiana’s most problematic invasive aquatic plant species. As the record-setting 2011 floodwaters push through the Atchafalaya Basin, USGS crews are monitoring these invasive species to see what effects the water have on them.

Yellowstone River is rising at Sidney, MT.

The Litttle Missouri River floods the camp facilities in Medora, ND.

Bridge over the little Missouri River at Medora, ND.

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.

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 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.

Many species of Hawaiian honeycreepers have persisted into the 20th century because high elevation rain forests on the islands of Kaua’i, Maui, and Hawai'i are cool enough to limit transmission of introduced avian malaria (Plasmodium relictum).

Controlled burn at Okefenokee National Wildlife Refuge.

USGS scientists installed a real-time camera to view the floodwaters below the Morganza spillway. This photo was taken before one floodgate was opened on May 14, 2011.

USGS scientists installed a real-time camera to view the floodwaters below the Morganza spillway. This photo was taken before one floodgate was opened on May 14, 2011.