Mark Fritts

Man holding bighead cap
Fish Biologist
La Crosse Fish and Wildlife Conservation Office
Fish and Aquatic Conservation
Aquatic Invasive Species
Address

555 Lester Ave
Onalaska, WI 54650
United States

(608) 455-0308
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Areas of expertise
Telemetry

From The Library

Upper Mississippi River Ichthyoplankton Sample qPCR Screening for Invasive Carp
Name
Upper Mississippi River Ichthyoplankton Sample qPCR Screening for Invasive Carp

Invasive carp (Bighead, Silver, Black, and Grass carp) threaten native ecosystems and recreation in Minnesota waters. These invasive species have been spreading upstream in the Mississippi River basin since their escape in the 1970s (Henderson 1976). With high fecundity and the ability to...

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In The News

Woman in usfws uniform looks through microscope
Our Partners
Getting on the same page: aging invasive carp with partners
What do you do when a group of people are looking at the same thing but have a different opinion on what they’re looking at? You get to the heart of it and get on the same page. The inner ear of carp holds key information on how old they are but determining the age of a fish is tricky. Similar to a...