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 …

CFL Blog’s Best of 2016: Recalculating the Cost of Invasive Species

As the year winds to a close, we’re taking a look back at some of the the CFL’s most popular blog posts from 2016. Here’s one originally published on March 21st about our researchers calculating the cost of a tiny Read More …

Monitor Mendota: Water Clarity, Daphnia on the Rebound

Last week on this blog, we wondered if Lake Mendota’s clear water phase was a thing of the past. You see, last year, the algae-eating native zooplankton, daphnia pulicaria were so diminished by predation from the invasive spiny water flea, that Read More …

Fish Fry Day: Daphnia Update & Perch (H2O) Purifiers?

Lake Monona is crystal clear, while Mendota stays murky and, on Wednesday, we asked you to help us monitor Lake Mendota as we wait to see if the native zooplankton, daphnia pulicaria, can rally and clear up the situation after Read More …

It’s Spring 2016! Help Us Monitor Mendota’s Clear-Water Phase

Last year at this time, we asked you to help us monitor Lake Mendota, as we worried that we’d missed its “clear-water” window. We’re happy to report that, in 2016, we’re nearing a 6 meter Secchi depth and seeing lots Read More …

Researchers Get to the Bottom (& Beyond) of Lake Mendota Invasive Species

It looks like ice-off is only a couple days away on Madison’s lakes. Before we hit the completely open water season, though, here’s a look back at some semi-frozen fieldwork from early March. Graduate student, Jake Walsh, shares his experience coring Read More …

Field Samples: Spiny Water Fleas, Lake Mendota, and Green Water

Field Samples is a weekly Q&A asking researchers what they’ve been up to and what they’ve learned. Today, CFL grad student, Jake Walsh, talks Lake Mendota and the invasive spiny water flea. Who are you, where are you from, and how Read More …

Invasive Spiny Water Flea Found in Trout Lake

New Invasive Species Confirmed in Trout Lake, Vilas County BOULDER JUNCTION, WI – The aquatic invasive species known as spiny water flea has been confirmed in Trout Lake in Vilas County. On September 22, 2014 a local fisherman noticed what Read More …

Muckraking Mendota: Of Shrimp and Glaciers

By Emily Hilts Lakes transform when the sun goes down. The once-familiar shoreline becomes unrecognizable and water takes on an inhospitable chill, making an after-hours trip a notch more exciting. So, when graduate student Jake Walsh (who studies zooplankton in Read More …