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Sean Nepper
FInfish Producer, Intermountain States - IAC Chair
Institution / Organization:Riverence FarmsEmail:[email protected]
Hedgecock, Improving Pacific oyster broodstocks
WRAC investigator Dennis Hedgecock (left) deploying a group of hybrid oysters for yieldevaluation with Chris Pratt of Taylor Resources, Inc. 2003; Photo: Jonathan Davis
Duration:4 yearsFunded Date:9/1/2001Funding level:$395,400 Location:California - CA, Oregon - OR, non-WRAC statesTopics:Broodstock, Genetics, HatcherySpecies:Oysters, Pacific oysters
Efficient, rapid assay for predicting the growth rate of aquaculture species based on metabolic rate of the fertilized egg
Renquist - Rapid Assay for Prediction Growth Rate of Aquaculture Species - trout -2013; Photo: Benjamin Renquist
Duration:2 yearsFunded Date:9/1/2012Funding level:$120,000Location:Arizona – AZ, Idaho - ID, Oregon - ORTopics:Culture/egg quality, Hatchery, Metabolic rate, Rapid assaySpecies:Oysters, Tilapia
Hedgecock, Crossbreeding Pacific oysters for high yield
WRAC investigator Dennis Hedgcock (left) deploying a group of hybrid oysters for yield evaluation with Chris Pratt of Taylor Resources, Ind.
Duration:2 yearsFunded Date:9/1/2001Funding level:$214,008Location:California - CA, Oregon - OR, Washington - WATopics:Culture, Genetics, HatcherySpecies:Oysters, Pacific oysters
Bowker An evaluation of the effectiveness of various florfenicol treatment regimens to control mortality caused by Streptococcus iniaei in cultured hybrid striped bass
Jim Bowker, USFWS and the Aquatic Animal Drug Partnership Program in Bozeman, MT
Duration:3 yearsFunded Date:9/1/2005Funding level:$94,711Location:California - CA, Montana - MT, Washington - WATopics:Florfenicol treatmentSpecies:Hybrid striped bass
Adapting aquaculture to changing water chemistry in the Pacific Northwest
Adapting aquaculture to changing water chemistry in the Pacific Northwest; Photo: Courtesy of George Waldbusser
Duration:4 yearsFunded Date:9/1/2012Funding level:$318,627Location:Oregon - OR, Washington - WATopics:Hatchery, Water quality - fresh and marineSpecies:Oysters
Piedrahita, Investigation into the solution of critical problems of the recirculation aquaculture industry in the western region
Investigation into the Solution of Critical Problems of the Recirculation Aquaculture Industry in the Western Region
Duration:4 yearsFunded Date:8/1/2001Funding level:$260,935Location:Arizona – AZ, California - CA, Washington - WATopics:Culture, RAS - Recirculation Aquaculture, Regulations, Water quality - fresh and marineSpecies:Salmon, Tilapia, Trout
The economic impact of regulations on shellfish and trout aquaculture growth in the western United States
Engle - Economic impact of regulations 2016; Illustration: Scite® – Science Crunchers
Duration:3 yearsFunded Date:9/1/2015Funding level:$220,998Location:California - CA, Colorado - CO, Idaho - ID, non-WRAC states, Oregon - OR, Utah - UT, Washington - WATopics:Economics, RegulationsSpecies:Shellfish, Trout
Emerging and re-emerging Flavobacterial pathogens in aquaculture (Cain)
Emerging and re-emerging Flavobacterial pathogens in aquaculture-Cain
Duration:3 yearsFunded Date:9/1/2018Funding level:$326,125Location:California - CA, Idaho - ID, Washington - WATopics:Cold water disease, Flavobacterial pathogens, Vaccination developmentSpecies:Trout
If you feed them, will they grow? A dietary approach to improving the growth of juvenile cutthroat trout
Myrick - Dietary approach for Juvenile Cuttthroat trout - 2013; Photo: Courtesy of
Duration:4 yearsFunded Date:9/1/2012Funding level:$357,91Location:Colorado - CO, Idaho - ID, Montana - MTTopics:Diet and Nutrition, Fish feed/protein/alternative protein, Grow outSpecies:Cutthroat trout, Trout
Determining causes, costs, and benefits of triploidization to improve sturgeon caviar production
Schreier - Determining Causes, Costs, and Benefits of Triploidization in Caviar Production - 2016; Photo: Fred Conte
Duration:4 yearsFunded Date:9/1/2015Funding level:$412,263Location:California - CA, Idaho - ID, Montana - MTTopics:Broodstock, Coulter counter, Genetics, Ploidy/polyploidy
Triploids, tetraploids, and successful metamorphosis in Purple hinge rock scallop (Crassadoma gigantean)
Davis - Triples, Tetraploids - Purple Hinge Rock Scallop 2016; Photo: Josh Davis
Duration:4 yearsFunded Date:9/1/2012Funding level:$357,269Location:California - CA, Washington - WATopics:Culture, Grow out, Hatchery, Ploidy/polyploidySpecies:Rock Scallop
Development and evaluation of starter diets and culture conditions for 3 subspecies of cutthroat trout and Gila trout
Myrick, starter diets and culture - trout
Duration:4 yearsFunded Date:9/1/2005Funding level:$355,229Location:Colorado - CO, Idaho - ID, Montana - MT, New Mexico – NMTopics:Diet and Nutrition, Grow outSpecies:Cutthroat trout, Trout
Dong, Development of economical, high-performance, low-polluting feeds and feeding strategies
Fish feeds; clockwise from top right: Iiver meal, soybean meal, grill meal, de-boned whitefish meal, squid meal, meat gluten meal; Center: corn gluten meal; Photo: Cathy Schwartz
Duration:3 yearsFunded Date:9/1/1997Funding level:$216,000Location:California - CA, Idaho - ID, non-WRAC states, Washington - WATopics:Culture, Diet and Nutrition, Fish feed/protein/alternative protein, Water quality - fresh and marineSpecies:Trout
Colt, Physiological changes associated with live haul: maintaining healthy fish
Live haul operation; Photo: Courtesy of John Colt
Duration:4 yearsFunded Date:8/1/2005Funding level:$352,100Location:non-WRAC states, Oregon - OR, Washington - WATopics:Live HaulSpecies:Salmon, Tilapia
Ostland, Immunological mechanisms of intensively-reared warmwater and coolwater finfish
Rainbow trout raised in aquaculture farm.
Duration:4 yearsFunded Date:10/1/2003Funding level:$400,00Location:California - CA, Idaho - ID, Washington - WATopics:Immunology, Vaccination development, Vaccine deliverySpecies:Hybrid striped bass, Rainbow trout
Enhancing trout performance through dietary acidification
Enhancing trout performance through dietary acidification -
Duration:3 yearsFunded Date:9/1/2023Funding level:$292,044Location:Idaho - ID, Montana - MTTopics:Diet and Nutrition, Metabolic rateSpecies:Trout
Ruesink, 2010, Scale-dependent and indirect effects of filter feeders on eelgrass: Understanding complex ecological interactions to improve environmental impacts of aquaculture
Ruesink - Analysis of Eelgrass - 2012; Photo: Charles "Si" SImenstad
Duration:4 yearsFunded Date:9/1/2003Funding level:$435,405Location:Oregon - OR, Washington - WATopics:Water quality - fresh and marineSpecies:Eelgrass, Geoduck, Pacific oysters, Shellfish
Purple urchin aquaculture: roe enhancement
Purple urchin aquaculture: roe enhancement-Gardner
Duration:3 yearsFunded Date:9/1/2023Funding level:$381,370Location:California - CA, Idaho - ID, Oregon - ORTopics:Culture, Culture/egg quality, Hatchery, SystemsSpecies:Shellfish
Environmental and endogenous factors affecting egg quality and caviar yield in farmed sturgeon
Doroshov - Egg quality an caviar yield in farmed sturgeon -2013 - Photo: Fred Conte
Duration:4 yearsFunded Date:9/1/2010Funding level:$480,000Location:California - CA, Idaho - ID, Montana - MT, Washington - WATopics:Broodstock, Diet and Nutrition, Economics, Grow outSpecies:Sturgeon