Articles & Lake News

Articles & Lake News

Finding Fish with Hydroacoustics
Researchers from Trout Lake Research Station provide insight into how the fish communities’ population dynamics and spatial habitat preferences may change over time and space. 
Biology and Biological Control of Purple

Center for Limnology Grad Student Finds Spiny Water Flea in Northern Wisconsin’s Plum Lake (Vilas County). 
In July, 2019, Spiny Water Fleas, a prohibited Aquatic Invasive Species, were discovered in Plum Lake, located in Vilas County.  This makes the 5th lake in Vilas to become infested with this fisheries degrading invasive species. 

Catching Up with the Crayfish Crew
Trout Lake Research Station isn’t just reserved for University of Wisconsin research. We let freshwater scientists from all over spend some time in the Northwoods to run their experiments. Bethany Prochnow spent an afternoon with a couple of Florida-based students who stopped by for a crayfish study.

Groundwater Flow and the Water Cycle
Yes, water below your feet is moving all the time, but, no, if you have heard there are rivers flowing below ground, that is not true. Water moves underground downward and sideways, in great quantities, due to gravity and pressure. Eventually it emerges back to the land surface, into rivers, and into the oceans to keep the water cycle going. (Source USGS)

Oneida County AIS Special Project Report:
​Yellow Iris Survey on Deer, Dog, and Big Lake of the Three Lakes Chain.

On the morning of June 25, 2019, Oneida County AIS Coordinator Stephanie Boismenue, joined Jay Teagle, Volunteer Lake Captain with the Three Lakes Waterfront Association, on his pontoon to search the Three Lakes Chain for the invasive Yellow Iris.  The crew surveyed Deer Lake, Dog Lake, and Big Lake and found the pretty invasive plant growing in 20 different sites – littorally!   See below for survey results and recommendations presented to the Three Lakes Waterfront Association during their annual meeting on July 3, 2019.

Effects of 2,4-D Treatments to Control EWM on Fish & Zooplankton in Northern WI Lakes
The University of Wisconsin-Stevens Point sponsored a DNR grant to study 6 lakes in northern WI. The project focused on determining effects of Eurasian water milfoil herbicide treatments on fish and zooplankton.

Public comment sought on proposed rules to assess the health of Wisconsin water bodies
The public has until September 20, 2019 to provide feedback on two proposed rule revisions related to assessing the overall health of lakes and streams in Wisconsin.
The first rule (Natural Resources Board order WY-23-13) addresses processes the department uses to assess bodies of water for impairments, including biological criteria for water quality standards and phosphorus impairments.
The second rule (NRB order WT-17-12) would establish a process for determining when an individual waterbody needs a higher or lower phosphorus criterion than the statewide target in order to meet water its quality goals.

The DNR Urges Wake Board Awareness
“Own your wake for everyone’s sake” 
​​The Wisconsin Department of Natural Resources is teaming up with the Minnesota DNR for a public campaign to encourage awareness of the risks and problems of boat wakes. When boat operators throttle up and create wakes, it can put paddlers, anglers, swimmers, other boaters and shoreline property owners at risk from the sudden rough water.

Blue-Green Algae 
​The Wisconsin Department of Health Services, Division of Public Health (DPH) collects information about human and animal illness resulting from exposure to blue-green algae. Tracking illness information will help DPH measure the problem of blue-green algae in our lakes and rivers.
If you get sick after swimming in a Wisconsin lake or river, please report possible algae-related illness. This program does not provide medical treatment, so if you are experiencing severe symptoms seek medical attention immediately.

Algal Blooms in Wisconsin: The Challenges of Phosphorus Reduction, Invasive Species, and Climate Change.
By Gina D. LaLiberte,  research scientist with the Wisconsin Department of Natural Resource’s Bureau of Science Services.

Your Voice is Needed!
Public comment period on surface water grant code revision.

​The DNR is revising the administrative code governing lake, river, and AIS grants, and is now taking public comments through July 24.