Water use for aquaculture in Minnesota, 1984

Water-Resources Investigations Report 88-4159
Prepared in cooperation with the Minnesota Department of Natural Resources



Aquaculture supports a large sportfishing industry in Minnesota. Licensed fish farms that hatch and (or) harvest minnows or gamefish are located throughout the State. The volume of water used in these operations can be expressed as the minimum capacity per pound of fish, total water consumed, total water dedicated to the farming operation, or total water withdrawn.

In expressing water dedicated to the farming operation, the total surface area of water bodies dedicated to aquaculture in Minnesota in 1984 was about 141,500 acres, based on interpretation of data reported in license applications. Water withdrawals to fish holding tanks amounted to 0.73 million gallons per day in 1984.

Water-use calculations address the possibility of errors in reporting. About 15 percent of the licensees use municipally supplied water for their holding tanks. One thermoelectric powerplant recently began reusing the heated water from its cooling towers to raise catfish.

Little change in the number of licensees since 1980 -indicates that aquaculture is a viable segment of the Minnesota economy. Trout farming has grown from 10 farms in 1978, to 23 in 1984; most use dug ponds sustained by ground-water inflow. Withdrawals for aquaculture are nonconsumptive and are small compared to other water-use categories in Minnesota.

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Water use for aquaculture in Minnesota, 1984
Series title Water-Resources Investigations Report
Series number 88-4159
DOI 10.3133/wri884159
Year Published 1988
Language English
Publisher U.S. Geological Survey
Publisher location St. Paul, MN
Contributing office(s) Minnesota Water Science Center
Description iv, 6 p.
Country United States
State Minnesota
Online Only (Y/N) N
Additional Online Files (Y/N) N
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