Targeted Feed Development for Early Life Stages of Lake Sturgeon, Walleye, and Yellow Perch

Freshwater Sciences (School of) / Freshwater

Project Description

The overall goal of this project is to enhance the production efficiency and profitability of fish farming by identifying optimal feeds for larval and early juvenile stages of key species, including lake sturgeon, walleye, and yellow perch. Specifically, we aim to develop species-specific diets that promote optimal survival, health, and growth, while reducing dependence on imported feeds. A dose-response approach will be used to formulate experimental diets containing varying nutrient levels or alternative ingredients. These diets will be fed to target species over a period of 4–8 weeks, depending on growth rates. Fish will be fed six times daily using automatic feeders, with feeding rates ranging from 2% to 10% of body weight per day, adjusted according to fish size. At the conclusion of each feeding trial, performance metrics such as total weight gain, survival rate, and feed intake will be measured to evaluate growth performance and feed conversion ratio. In addition, fish from each tank will be sampled for proximate composition, morphological characteristics, and key health indicators.

Tasks and Responsibilites

The major tasks for students will include:
1. Conducting daily water quality monitoring.
2. Assisting graduate students with the preparation of experimental diets and the setup of culture systems for feeding trials.
3. Measuring and allocating daily feed for each tank.
4. Weighing fish and collecting samples in accordance with the experimental protocol.
5. Attending weekly lab meetings to receive research updates.

Students will also be responsible for:
1. Completing required protocol training prior to participating in the project.
2. Performing daily checks of fish health and status following established lab protocols.
3. Compiling and organizing weekly data for reporting to the mentor.
4. Preparing a poster or oral presentation based on research outcomes for presentation at the SURF symposium.

Desired Qualifications

None listed.