Blog Redux: Secchi Disk Celebrates 150 Years of Clarity

Tomorrow will mark the one hundred and fifty-second birthday of the Secchi disk. We dusted off this post from two years ago to tell you all about our favorite scientific instrument. Enjoy! (Originally published April 20, 2015) – A time-honored Read More …

North America’s Freshwater Lakes are Getting Saltier

by Kelly Tyrrell, UW-Madison Communications  FOR IMMEDIATE RELEASE – MADISON, WI – Road salt is making North America’s freshwater lakes saltier, according to a new study published today [April 10, 2017] in the Proceedings of the National Academy of Sciences. Read More …

When It Comes to Biological Extremes, Expect the Unexpected

MADISON – Human beings are familiar with the idea of extreme events. Meteorologists keep us up to date on hurricanes, floods and high temperatures. Economists watch the stock market for signs of crashes or rallies. We spend a lot of Read More …

What Lies Beneath: Sudden Invasion of a Wisconsin Lake Wasn’t So Sudden After All

In the fall of 2009, a tiny aquatic creature known as the spiny water flea showed up in a lake where it had never before been seen. At first, students in the UW-Madison undergraduate limnology class didn’t know what they Read More …

Video: Searching for Spring’s Spawning Suckers

Happy Fish Fry Day! Just like many Wisconsin restaurants, we’ve got fish on the menu today. The special? Suckers with a side of steelhead. Watch as CFL graduate student, John Rodstrom, and post-doc, Allison Moody, search for suckers in a Read More …

Fish Fry Day: “Save Yourselves!” Fish Under Attack Sound The Alarm to Others

Happy Fish Fry Day folks! You’ll find perch and walleye specials at our fair state’s eateries today, but here on the blog we’ve got a tiny little martyr on the menu – the blacknose shiner. We’re working our way through Read More …

Lake Mendota’s Spring Thaw Ties for 2nd Earliest on Record

Yesterday morning I brought breakfast to my daughters at our dining room table, glanced out the window and did a double take. The waters of Lake Monona were a churning mass of brownish bluish green. What had only the night Read More …