Images

This image shows a GLRI nutrient sampler submerged during major flooding on the Rifle River, Michigan, in May 2020. This site is near the Rifle River Near Sterling USGS streamgage.

Canada geese in large numbers can contribute fecal contamination to waterbodies.

Durand streamgage mounted to bridge - looking downstream.

Hydrologic Technician using crane to collect a bedload sample from the bridge.

Map of dissolved oxygen and turbidity along the Milwaukee River.

These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science.

Ephemeral wetlands at Glacial Ridge National Wildlife Refuge

These images show grass carp larvae from the Maumee River. Characteristics of larval grass carp include overall length (left), skeletal muscle development (center) and presence of an eye spot that lacks pigmentation (right; pigment starting to develop on lower eye).

A hypothetical configuration of one of the two drained field sites, including a weather station for measuring climate data, a piezometer network for continuous water level measurements, soil moisture probes, and subsurface drainage flow. The third undrained field site will have a similar configuration, with the absence of subsurface drainage flow.

In this photo, USGS scientists Megan Haserodt (Hydrologist) and Jenelle Wempner (Student Intern) install a double ring infiltrometer along a recreated floodplain of Underwood Creek, a tributary to the Milwaukee River and Lake Michigan in Milwaukee, Wisconsin.

Lab Instrumentation used for target analyses at the OGRL at the KS WSC. Image is of part of the Instrument Laboratory. 

View from Durand bridge of boat crew conducting multibeam surveys

Sediment core sample taken at Grubers Grove Bay on the Wisconsin River, Wisconsin.

Photograph showing the White River downstream from the White River Trail bridge, looking east toward White River State Park in downtown Indianapolis, Indiana. Photograph by Matt Williams, The Nature Conservancy.

One wild turkey in Wisconsin

A pectoral spine cross section from invasive grass carp captured in the Great Lakes. These cross sections are used to determine the age of the fish.

Cross section of a fish vertebra. Useful for determining the age of a fish.

National Geographic photographer, Keith Ladzinski, photographs live sea lamprey at Hammond Bay Biological Station on September 11, 2019 for an expansive article featuring the Great Lakes.

GSLC research fish biologist, Dr. Ed Roseman, delivers a plenary address at the Great Lakes Areas of Concern (AOC) conference on September 11-12, 2019.

Puffin flying at Izembek National Wildlife Refuge Alaska with Frosty Peak in background.

Harbor seals poking their heads above water near shore in Russell Creek, Cold Bay, Alaska.

View of the Milwaukee, Wisconsin skyline from Lake Michigan looking northwest on a late summer afternoon.