Fish Community Research Assistant

Employer: Noah Lottig ( and Greg Sass (DNR)


The introduction and establishment of invasive rainbow smelt in two North Temperate Lakes Long Term Ecological Research (NTL LTER) lakes (Sparkling and Crystal) has resulted in functional extirpations of formerly naturally reproducing populations of native yellow perch, walleye, and cisco. In 2017, we observed yellow perch relative abundances approaching levels observed prior to the introduction of rainbow smelt along with clear evidence of multiple age classes of yellow perch present in the lake.  This research project will focus around understanding the current yellow perch and rainbow smelt populations and their age/size-structure and foraging behavior. We will analyze archived fish scales to quantify yellow perch growth rates, conduct more intensive sampling of the fish community to gain a better understanding of the current yellow perch and rainbow smelt populations, and conduct diet content analyses to test for potential shifts in yellow perch and rainbow smelt diets.

Responsibilities (training provided):

  • Safe operation of UW – Trout Lake boats and vehicles
  • Launching and towing boats
  • Careful data collection and sample processing
  • Deploying and retrieving fish sampling equipment
  • Handling and measuring fish
  • Assist with field and lab equipment maintenance
  • Entering data into database


  • Must be eager to learn and have a genuine interest in aquatic ecology
  • Maintain positive attitude while conducting field work
  • Experience with identifying and handling fish preferred
  • Work in all safe weather conditions
  • Be able to lift and carry a moderate amount (~30 lbs) of gear over short distances
  • Must be able to swim
  • Valid driver’s license which meets UW Risk Management standards is required


  • Number of positions: 1
  • Start date: mid-May 2019
  • End date: August 2019
  • Pay:  $11.00-no experience; $11.25-some experience; $11.50-very experienced

 Location and Housing:

These positions are located at the Center for Limnology’s Trout Lake Station in Boulder Junction, WI in northern Wisconsin.   Dormitory style housing (not food) is provided free of charge. Enjoy swimming, hiking, fishing, biking and shoreline campfires while gaining valuable research experience!

How to apply:

  • Position filled.

The CFL is an equal opportunity employer and is dedicated to an inclusive and positive working environment for all.