Sustainable Aquaculture Projects, Research, Education and Technology Advancements
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Overcoming the Barriers
Highlights of Current Projects & Facility News

University of Wisconsin Stevens Point
Northern Aquaculture Demonstration Facility 


Overcoming Barriers for Atlantic Salmon...
Aquaculture Magazine
, recently highlighted Overcoming Barriers to Support the Growth of Land-based Atlantic Salmon Production, a project funded by the National Sea Grant College program to UWSP NADF and partners including The Conservation Fund's Freshwater Institute, Wisconsin Sea Grant, Superior Fresh, LLC. and Riverence, LLC. This project is investigating how to overcome two major barriers, identified by industry, to raising salmon in land-based closed containment systems. The two challenges investigated in this project include; managing saprolegniasis (commonly referred to as 'fungus') during fry and smoltification life stages, and ensuring that the flavor profile of the market-sized harvested fish is free of  off-flavor. For an overview of this project as well as further information on salmon raised in land-based systems, read the full article HERE
Specific research from this project has recently been published in Aquacultural Engineering, fully available online; Depuration system flushing rate affects geosmin removal from market-size Atlantic salmon Salmo salar 

Public Opinion on Aquaculture...
Research done by UW-Stevens Point and partners UW-Madison and UW-Sea Grant Institute, was recently published in Environmental Communication
Predictors of Environmental Policy Support: The Case of Inland Aquaculture in Wisconsin. This project sought to explore public opinion about inland aquaculture among individuals in the U.S. and better understand predictors of environmental policy support. Risk/benefit perceptions, emotions, media, and objective knowledge was examined through data gathered from a survey of 3,000 randomly sampled households in the U.S. state of Wisconsin. The study found that individuals generally viewed aquaculture favorably. Furthermore, they found that emotions were strong predictors of support for policies that promote the growth of Wisconsin aquaculture. Alternatively, risk/benefit perceptions were strong predictors of policy related to regulation. Thus, different predictors explained different dimensions of policy support.

This project was funded by Wisconsin Sea Grant. Find further information and additional project deliverables HERE

Walleye Production...
Currently, the facility is raising walleye both intensively, in a water recirculation system, and extensively in 4, half acre outdoor earthen ponds. Indoors the fish have been raised on commercial feeds from hatch, while outdoors the walleye fed on zooplankton and now are being supplied with forage minnows. Both groups of fish are being raised for stocking inland Wisconsin lakes in collaboration with The Red Cliff Band of Lake Superior Chippewa Tribal Fish Hatchery, the Wisconsin Dept. of Natural Resources, the Great Lakes Indian Fish and Wildlife Commission, and The Namekagon Lake Association, LLC. The different groups of fish will be identified by fin clips to investigate whether survival rates and fitness levels differ post stocking among the two groups.
Learn more about UWSP NADF walleye production in intensive and extensive systems HERE. 

Nano-bubble Technology...
Six replicated recirculating systems are currently being designed and constructed at the facility (shown at left) and will be used to investigate Nano-bubble Oxygenation of Recirculating Aquaculture Systems to Increase Fish Production.  This project, funded by the National Sea Grant College Program, will compare traditional oxygen supplementation with the nano-bubble technology. One goal being to document and characterize nanobubbles to better understand their chemistry in an RAS and their effects on the growth of fish, fish health, and water quality in cold and warm-water RAS.


Interactive Facility Webinars will be available for those that wish to learn more about UWSP NADF projects, systems, management practices and more. Due to the pandemic, facility tours are currently unavailable, therefore this initiative can be an option for all audiences to learn more about the facility. Presentations will be available via zoom webinar with UWSP NADF Outreach Specialist, Emma Wiermaa. Each presentation will be interactive, and suited to your specific background. If you are a student, educator, farmer, or simply interested in learning more about aquaculture or the facility, you are welcome to schedule a time with Emma at 
Getting Started in Recirculating Aquaculture Systems Webinar hosted by The Farmory and presented by UWSP NADF Assistant Director and Research Program Manager, Greg Fischer. The Farmory is offering a variety of presentations through the 'Lunch & Learn' webinar series, including Fish Health, Water Quality, Introduction to Systems, Aquaponics and more. Check out THIS RECORDING OR other past webinars HERE.


WI Sea Grant Hiring for Outreach/Marketing Position

Like others in so many economic sectors hit hard by the coronavirus pandemic, Wisconsin aquaculture operators and commercial fishers are looking for ways to adapt their products and strategies in a disrupted marketplace. 
The National Sea Grant College Program, in which Wisconsin Sea Grant is a participant, recently committed resources to coastal states to help those affected by COVID-19. In Wisconsin, that response is to structure and hire for a new, one-year non-renewable marketing and outreach position focused on the Eat Wisconsin Fish Initiative. Application deadline is AUGUST 28TH. 

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