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Ashland FWCO
 Midwest Region
 MTAN LogoDedicated To The Tribal Aquaculture ProgramImage of fish jumping.    September 2003-Volume 45_bhttp://www.fws.gov/midwest/ashland/mtanhome.html**Administrative        Coordinator:        Frank G. Stone         (715-682-6185) Ext.        202        U.S. Fish and        Wildlife Service        Email:         [email protected]**            **Edited        By:        Elizabeth W. Greiff         (715-349-2195) Ext. 141        St. Croix Tribal Nat. Res. Depart.        Email:**      **[email protected]** TopicsOf Interest:  A Photo Expedition of: St. Croix Waters Fishery Aquasonic Algae Control Return to Bad River Tribal Fish Hatchery  ST. CROIXWATERS FISHERYBy:Barry Bassett,Danbury, Wisconsin, 715-656-7800 St. Croix Waters Fishery (SCWF) is a state-of-the-art, recirculating aquaculture system or RAS.  SCWF is owned and operated by the St. Croix Chippewa Indians of Wisconsin. The current facility is the product of an idea that is over 20 years old.  Construction began in the summer of the year 2000, and the first fish were brought into the facility in October of 2001. Within the 170,000 square-foot main building are 332 fish production tanks flowing with nearly 2 million gallons of water through 13 miles of pipe.  SCWF is currently rearing yellow perch and hybrid striped bass. The yellow perch is a prized food-fish around the Great Lakes and the North Central United States.  At SCWF, the perch are grown to 1/3 of a pound, and then processed through automated machines, resulting in beautiful, single-side, skin-on fillets of 1 to 2 ounces in size.  Perch fillets are available fresh or frozen. Hybrid striped bass are the result of an intra-specific cross between  white bass and  striped bass.  Their history as a popular food fish originates along the Atlantic Coast of the U.S.  SCWF produces market size striped bass averaging 1.50 pounds.  The fish are chilled on ice, packaged, and sold in the whole fish form.  Once SCWF reaches full capacity (2004), annual production is estimated at over 1.5 million pounds. The key to the term RAS, or recirculating aquaculture system, is the term - recirculating.  A flow-thru fish production system uses fresh water once and then discards the water.  This is not environmentally sound as enormous amounts of water are consumed and wasted.  SCWF production starts with cool fresh well water.  This initial water is used, cleaned, and reused repeatedly. When our fish attain harvest size, they are polished in fresh cold water prior to slaughter.  The end results are yellow perch and striped bass that are simply delicious.  The firm, flavorful fillets are very versatile in the kitchen, lending themselves well to a variety of cooking and preparation techniques.  SCWF, a St. Croix Tribal Enterprise, prides themselves on the consistency in both quality and quantity of our products.  Give us a call and see for yourself ! The MTAN recently visited the St. Croix Waters       Fishery and was given the grand tour by the station production manager       Barry Bassett.  The St. Croix tribe has built a "State of the Art"       facility that will set the bar for all other commercial Recirculating       Aquaculture Systems.      The       following images are provided as a guided tour of the exceptional rearing       program that has been established for yellow perch and hybrid striped bass       at the St. Croix Waters Fishery.Within the 170,000 square-foot main building are 332 fish production tanks.      Bulk feed storage bin.      Cooling tower and electric generator       for backup power.Nearly 2 million gallons of water flow       through 13 miles of pipe.      Water chilling system used to adjust       water temperatures to maximize fish growth.      Fully equipped       diagnostic laboratory used to monitor parasitic infections, bacterial       pathogens and water chemistry.
  Aquasonic Algae ControlBy:Jay Warecki, Ph.D., fish whisperer, Superior Aquaculture, LLC.        (715) 335-3474; Fax: (715) 335-6547; 7172 Isherwood Rd., Bancroft, WI 54921        Email: [email protected]  Ultrasonic anti-algae deviceOverview: Resulting from years of research by inventor Hilaire Thomas into the effects of ultrasonic vibrations, and first developed for horticultural use, our products have proven to be extremely effective and environmentally friendly.  They not only solve a number of difficult problems, but also allow for large reductions in the use of expensive and harmful chemicals. In the past three years, over 3,000 Aquasonic units have been installed at various horticultural operations in Holland and Belgium, with very good results, and new applications for these devices are developing rapidly worldwide. Aquaculture Applications: Four models with maximum ranges of 10m to 100m, emitting outward in a 180 degree arcPower consumptions: 25 watts to 45 wattsReduce fish killsReduce gas bubble disease by reducing chronic supersaturationsReduce night-time aeration costs by reducing heavy day-time bloomsImprove effectiveness, penetration, and operational costs of u.v. treatment unitsReduce cleaning and maintenance costsReduce toxic blue green algaeReduce phosphorous emissions by settling out algae without chemicalsImprove esthetics of tanks, pools, and ponds Improve effectiveness, penetration, and operational costs of u.v. treatment unitsReduce cleaning and maintenance costsReduce toxic blue green algaeReduce phosphorous emissions by settling out algae without chemicalsImprove esthetics of tanks, pools, and ponds Before and After Images: At the beginning of the ultrasonic treatment the water is       turbid, full of roaming algae.      After one       day the first strings of algae are dead and they       float to the water surface.      Movement in       the water will show that under the layer of algae the water became clear       already.Some days later most of the       algae are dead and they float to the water surface.
  **Return to Bad River Tribal Fish Hatchery****Returnto MTAN selection pageReturn to Ashland FRO home pageReturn to Region 3 U.S. Fish and Wildlife Service**Product and company        names mentioned in this publication are for informational purposes only.        It does not imply endorsement by the MTAN or the U.S. Government.
 
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