All Images
Research News
Boom times for fish populations in Wisconsin lakes
Bluegill in Wisconsin's Sparkling Lake show astonishing variability in numbers from year to year.
Credit: Gretchen Hansen
Download the high-resolution JPG version of the image. (776.8 KB)
Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.
Researchers sample fish in lakes by dark of night; the results help with population estimates.
Credit: Adam Hinterthuer
Download the high-resolution JPG version of the image. (1.4 MB)
Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.
Even in winter, scientists are out taking samples at the NSF LTER site on Wisconsin lakes.
Credit: Adam Hinterthuer
Download the high-resolution JPG version of the image. (1.8 MB)
Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.
Scientist Ryan Batt obtains readings of oxygen levels in a lake in northern Wisconsin.
Credit: Steve Carpenter
Download the high-resolution JPEG version of the image. (791.6 KB)
Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.
Researchers census fish populations in lakes in Wisconsin. Seen here, a common carp.
Credit: Adam Hinterthuer
Download the high-resolution JPG version of the image. (1.5 MB)
Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.
Ryan Batt rows out to collect minnow traps in a northern Wisconsin lake.
Credit: Ali Branscombe
Download the high-resolution JPEG version of the image. (2.8 MB)
Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.