Page Banner

United States Department of Agriculture

Agricultural Research Service

Eugene L. Torrans

Research Fish Biologist


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Partitioned pond aquaculture systems Reprint Icon - (Review Article)
Tucker, C.S., Brune, D.E., Torrans, E.L. 2014. Partitioned pond aquaculture systems. World Aquaculture Magazine. 45(2):9-17.
There must be something in the water (for F. columnare pathogenesis) - (Abstract Only)
Straus, D.L., Farmer, B.D., Beck, B.H., Bosworth, B.G., Torrans, E.L., Tucker, C.S. 2014. There must be something in the water (for F. columnare pathogenesis) [abstract}. Annual Eastern Fish Health Workshop. p.21.
Growth and feed conversion of pond-raised hybrid catfish harvested at different sizes - (Peer Reviewed Journal)
Li, M.H., Robinson, E.H., Bosworth, B.G., Torrans, E.L. 2014. Growth and feed conversion of pond-raised hybrid catfish harvested at different sizes. North American Journal of Aquaculture. 76:261-264.
Development and on-site field testing of the power-tube airlift aerator and chances for commercialization - (Abstract Only)
Brown, T.W., Torrans, E.L. 2014. Development and on-site field testing of the power-tube airlift aerator and chances for commercialization. NWAC (National Warmwater Aquaculture Center) Aquaculture Newsletter. P. 8-9.
Histological and computed tomographic evaluation of a parasitic conjoined twin in hybrid catfish Ictalurus punctatus X I. furcatus - (Peer Reviewed Journal) - (20-Apr-13)
Channel catfish hatchery production efficiency using a vertical-lift incubator the see-saw at various egg loading densities - (Peer Reviewed Journal)
Torrans, E.L., Ott, B.D., Jones, R., Jones, R. 2013. Channel catfish hatchery production efficiency using a vertical-lift incubator the see-saw at various egg loading densities. North American Journal of Aquaculture. 75(2):235-243.
Influences of cyclic, high temperatures on juvenile channel catfish growth and feeding - (Peer Reviewed Journal)
Arnold, M.B., Torrans, E.L., Allen, P.J. 2012. Influences of cyclic, high temperatures on juvenile channel catfish growth and feeding. North American Journal of Aquaculture. 75(1):77-84.
The influence of ovarian fluid ph of stripped unfertilized channel catfish Ictalurus punctatus eggs on the hatching success of channel catfish x blue catfish I. furcatus hybrid catfish eggs - (Peer Reviewed Journal)
Chatakondi, N.G., Torrans, E.L. 2012. The influence of ovarian fluid ph of stripped unfertilized channel catfish Ictalurus punctatus eggs on the hatching success of channel catfish x blue catfish I. furcatus hybrid catfish eggs. Journal of the World Aquaculture Society. 43(4):585-593.
Development and evaluation of a new aerator for the catfish industry - (Abstract Only) - (26-Dec-11)
Effect of DO concentration size of stockers and density on growth and production of hybrid catfish - (Abstract Only)
Torrans, E.L., Ott, B.D. 2012. Effect of DO concentration, size of stockers, and density on growth and production of hybrid catfish. Catfish Farmers of America Research Symposium. P.16.
The see-saw a vertical-lift incubator designed for channel catfish egg masses - (Abstract Only)
Torrans, E.L., Ott, B.D., Jones, R., Jones, R. 2012. The see-saw a vertical-lift incubator designed for channel catfish egg masses. Catfish Farmers of America Research Symposium. P.16.
Blue catfish outproduce channel catfish under low D.O. conditions - (Trade Journal)
Torrans, E.L. 2012. Blue catfish outproduce channel catfish under low D.O. conditions. Global Aquaculture Advocate. 46-47.
Effects of DO concentration in growout performance of blue catfish with comparison to channel catfish - (Peer Reviewed Journal)
Torrans, E.L., Ott, B.D. 2012. Effects of DO concentration in growout performance of blue catfish with comparison to channel catfish. North American Journal of Aquaculture. 74(2):273-282.
The effect of calcium hardness on hatching success of channel catfish Ictalurus punctatus x blue catfish I furcatus hybrid catfish eggs - (Peer Reviewed Journal)
Chatakondi, N.G., Torrans, E.L. 2012. The effect of calcium hardness on hatching success of channel catfish Ictalurus punctatus x blue catfish I furcatus hybrid catfish eggs. North American Journal of Aquaculture. 74:306-309.
Effect of do concentration on growth and production of hybrid catfish - (Abstract Only) - (10-Nov-11)
Development and evaluation of a new aerator for the catfish industry - (Abstract Only)
Brown, T.W., Torrans, E.L. 2012. Development and evaluation of a new aerator for the catfish industry. Aquaculture America Conference. P. 75.
Effects of hatching conditions on triple tail deformity in channel catfish - (Abstract Only)
Ott, B.D., Torrans, E.L. 2012. Effects of hatching conditions on triple tail deformity in channel catfish. Aquaculture America Conference. P.348.
Effects of DO cencentration on growth of juvenile channel catfish - (Abstract Only)
Ott, B.D., Torrans, E.L. 2012. Effects of DO cencentration on growth of juvenile channel catfish. Aquaculture America Conference. P.347.
Improving Catfish Fry Survival - (Abstract Only)
Torrans, E.L., Ott, B.D. 2011. Improving Catfish Fry Survival. Aquaculture America Conference. P.117.
Effect of Channel Catfish Ictalurus Punctatus Egg Mass Loading Rate on Performance of the “See-Saw” Incubator - (Abstract Only)
Ott, B.D., Torrans, E.L. 2011. Effect of Channel Catfish Ictalurus Punctatus Egg Mass Loading Rate on Performance of the “See-Saw” Incubator. Aquaculture America Conference. P. 150.
Effect of Increased Egg Stocking Density in Existing and Experimental Catfish Incubators - (Proceedings)
Ott, B.D., Torrans, E.L. 2011. Effect of Increased Egg Stocking Density in Existing and Experimental Catfish Incubators. Southeastern Association of Fish and Wildlife Agencies Conference. 54:131-135.
Impact of Dissolved Oxygen on Feed Conversion, Feed Consumption, and Growth of Blue Catfish Ictalurus furcatus, Channel Catfish I. punctatus, and Blue X Channel Catfish Hybrids - (Abstract Only)
Torrans, E.L., Ott, B.D. 2010. Impact of Dissolved Oxygen on Feed Conversion, Feed Consumption, and Growth of Blue Catfish Ictalurus furcatus, Channel Catfish I. punctatus, and Blue X Channel Catfish Hybrids (abstract). In: Proceedings, Aquaculture America Conference. March 1-5, 2010. p.486.
The “See-Saw”: A Vertical-Lift Incubator Designed for Channel Catfish Ictalurus punctatus Egg Masses - (Abstract Only)
Ott, B.D., Torrans, E.L. 2010. The “See-Saw”: A Vertical-Lift Incubator Designed for Channel Catfish Ictalurus punctatus Egg Masses (abstract). In: Proceedings, Aquaculture America Conference, March 1-5, 2010. p. 445
Can We Improve Catfish Growth and FCR Through Oxygen Management? - (Trade Journal)
Torrans, E.L. 2010. Can We Improve Catfish Growth and FCR Through Oxygen Management? The Catfish Journal. 24(9):10-11, 14
New Data on Henneguya Pellis (Myxozoa: Myxobolidae), A Parasite of Blue Catfish Ictalurus furcatus - (Peer Reviewed Journal)
Griffin, M.J., Khoo, L.H., Torrans, E.L., Bosworth, B.G., Quiniou, S., Gaunt, P.S., Pote, L.M. 2009. New Data on Henneguya Pellis (Myxozoa: Myxobolidae), A Parasite of Blue Catfish Ictalurus furcatus. Journal of Parasitology. 95:1455-1467.
New Data on Henneguya pellis (Myxozoa: Myxobolidae), A Parasite of Blue Catfish Ictalurus furcatus - (Peer Reviewed Journal)
Griffin, M., Khoo, L.H., Torrans, E.L., Bosworth, B.G., Quiniou, S., Gaunt, P.S., Pote, L.M. 2009. New Data on Henneguya pellis (Myxozoa: Myxobolidae), A Parasite of Blue Catfish Ictalurus furcatus. Journal of Parasitology. 95(6):1455-1467.
A Vertical-Lift Incubator (The "Seesaw") Designed for Channel Catfish Egg Masses - (Peer Reviewed Journal)
Torrans, E.L., Ott, B.D., Jones, R., Jones, Jr., R., Baxter, J., Mccollum, B., Wargo, III, A., Donley, J. 2009. A Vertical-Lift Incubator (The "Seesaw") Designed for Channel Catfish Egg Masses. North American Journal of Aquaculture. 71(4):354-359.
Effects of Low Oxygen on Production of Blue Catfish Ictalurus furcatus and Channel Catfish I. punctatus - (Abstract Only)
Torrans, E.L., Ott, B.D. 2009. Effects of Low Oxygen on Production of Blue Catfish Ictalurus furcatus and Channel Catfish I. punctatus [Abstract]. In: Research and Review; A Compilation of Abstracts of Research on Channel Catfish. Catfish Farmers of America Catfish Research Symposium, March 5-7, 2009, Natchez, Mississippi. p. 22.
The "See-saw" - A High-intensity Catfish Egg Incubator Designed to Save Space and Conserve Water - (Abstract Only)
Torrans, E.L., Ott, B.D., Jones, R., Jones, B., Baxter, J., Mccollum, B., Wargo, Iii, A., Donley, J. 2009. The "See-saw" – A High-intensity Catfish Egg Incubator Designed to Save Space and Conserve Water [Abstract]. In: Research and Review; A Compilation of Abstracts of Research on Channel Catfish. Catfish Farmers of America Catfish Research Symposium, March 5-7, 2009, Natchez, Mississippi. p. 23.
Comparative Oxygen Tolerance of Blue Catfish Ictalurus furcatus and Channel Catfish I. punctatus - (Abstract Only)
Torrans, E.L., Ott, B.D. 2009. Comparative Oxygen Tolerance of Blue Catfish Ictalurus furcatus and Channel Catfish I. punctatus [Abstract]. In: Book of Abstracts. Aquaculture America, February 15-19, 2009, Seattle, Washington. p. 257.
Routine Metabolic Rate and Limiting Oxygen Concentration of Freshwater Prawn Macrobrachium rosenbergii Larvae - (Abstract Only)
Ott, B.D., Torrans, E.L. 2009. Routine Metabolic Rate and Limiting Oxygen Concentration of Freshwater Prawn Macrobrachium rosenbergii Larvae [Abstract]. In: Book of Abstracts. Aquaculture America, February 15-19, 2009, Seattle, Washington. p. 255.
Maximizing Channel Catfish Production - Active Management Raises Yields - (Trade Journal)
Torrans, E.L. 2008. Maximizing Channel Catfish Production - Active Management Raises Yields. Global Aquaculture Advocate. 11(4):45-47.
Production Responses of Channel Catfish to Minimum Daily Dissolved Oxygen Concentrations in Earthen Ponds - (Peer Reviewed Journal)
Torrans, E.L. 2008. Production Responses of Channel Catfish to Minimum Daily Dissolved Oxygen Concentrations in Earthen Ponds. North American Journal of Aquaculture 50(4):371-381.
Effect of Dissolved Oxygen Concentration on Development and Hatching of Channel Catfish Ictalurus punctatus Eggs - (Abstract Only)
Torrans, E.L., Bosworth, B.G., Ott, B.D. 2008. Effect of Dissolved Oxygen Concentration on Development and Hatching of Channel Catfish Ictalurus punctatus Eggs [Abstract]. In: Book of Abstracts. Aquaculture America, February 9-12, 2008, Lake Buena Vista, Florida. p. 274.
Routine Metabolic Rate of Channel Catfish Ictalurus punctatus Fry - (Abstract Only)
Ott, B.D., Torrans, E.L. 2008. Routine Metabolic Rate of Channel Catfish Ictalurus punctatus Fry [Abstract]. In: Book of Abstracts. Aquaculture America. February 9-12, 2008, Lake Buena Vista, Florida. p. 273.
Effects of Dissolved Oxygen Concentration on Oxygen Consumption and Development of Channel Catfish Eggs and Fry: Implications for Hatchery Management - (Peer Reviewed Journal)
Torrans, E.L., Steeby, J. 2008. Effects of Dissolved Oxygen Concentration on Oxygen Consumption and Development of Channel Catfish Eggs and Fry: Implications for Hatchery Management. North American Journal of Aquaculture 70(3):286-295. Accepted Aug. 7, 2007; Published on-line Apr. 14, 2008.
Optimal Conditions Pay Healthy Dividends For Catfish Hatcheries - (Popular Publication)
Small, B.C., Bates, T.D., Torrans, E.L. 2007. Optimal Conditions Pay Healthy Dividends For Catfish Hatcheries. Hatchery International Magazine. 8(1):19-20.
Aerator Placement Strategies - (Abstract Only)
Torrans, E.L., Dees, P.D. 2007. Aerator Placement Strategies [Abstract]. In: Book of Abstracts. Aquaculture America, February 26 – March 3, 2007, San Antonio, Texas. p. 923.
Design and Testing of A Closed Stirring-respirometer for Measuring Oxygen Consumption of Channel Catfish Eggs - (Peer Reviewed Journal)
Torrans, E.L. 2007. Design and Testing of A Closed Stirring-respirometer for Measuring Oxygen Consumption of Channel Catfish Eggs. North American Journal of Aquaculture. 69:185-189.
Oxygen Management of Channel Catfish Hatcheries - (Trade Journal)
Torrans, E.L., Steeby, J. 2006. OXYGEN MANAGEMENT OF CHANNEL CATFISH HATCHERIES. Global Aquaculture Advocate 9(3):56,57.
Production and Processing Traits of Blue Catfish, Blue Catfish X Channel Catfish Hybrids, and Three Strains of Channel Catfish - (Abstract Only)
Bosworth, B.G., Torrans, E.L. 2006. Production and processing traits of blue catfish, blue catfish x channel catfish hybrids, and three strains of channel catfish [Abstract]. Book of Abstracts. Aquaculture America, February 13-16, 2006, Las Vegas, Nevada. p. 34.
Effects of Organic Fertilization and Organic Diets on Production of Channel Catfish, Ictalurus punctatus, in Earthen Ponds - (Abstract Only)
Li, M.H., Robinson, E., Mischke, C.C., Torrans, E.L., Bosworth, B.G. 2006. Effects of Organic Fertilization and Organic Diets on Production of Channel Catfish, Ictalurus punctatus, in Earthen Ponds. [Abstract]. In: Book of Abstracts. Aquaculture America, February 13-16, 2006, Las Vegas, Nevada. p. 167.
Oxygen Consumption of Channel Catfish Eggs and Fry: Implications for Hatchery Management - (Abstract Only)
Torrans, E.L., Steeby, J. 2006. Oxygen Consumption of Channel Catfish Eggs and Fry: Implications for Hatchery Management [Abstract]. In: Research and Review; A Compilation of Abstracts of Research on Channel Catfish. Catfish Farmers of America Catfish Research Workshop, February 23-24, 2006, San Antonio Texas, p. 22-23.
Pushing the Envelope - What's Possible? - (Abstract Only)
Torrans, E.L., Hogue, C. 2006. Pushing the Envelope - What's Possible? [Abstract]. In: Research and Review; A Compilation of Abstracts of Research on Channel Catfish. Catfish Farmers of America Catfish Research Workshop, February 23-24, 2006, San Antonio, Texas, p. 33-34.
New Thoughts on Paddlewheel Placement - (Abstract Only)
Torrans, E.L., Dees, P.D. 2006. New Thoughts on Paddlewheel Placement [Abstract]. In: Research and Review; A Compilation of Abstracts of Research on Channel Catfish. Catfish Farmers of America Catfish Research Workshop, February 23-24, 2006, San Antonio, Texas, p. 31.
Improved Aeration, D.O. Management Advance Catfish Production - (Trade Journal)
Torrans, E.L. 2005. IMPROVED AERATION, D.O. MANAGEMENT ADVANCE CATFISH PRODUCTION. Global Aquaculture Advocate 8(6):61-63.
Managing Oxygen in Catfish Hatcheries to Increase Fry Survival - (Abstract Only)
Torrans, E.L., Steeby, J. 2006. Managing Oxygen in Catfish Hatcheries to Increase Fry Survival [Abstract]. In: Book of Abstracts. Catfish Farmers of Arkansas Annual Meeting, January 22-28, 2006, Hot Springs, Arkansas. 2006 CDROM.
Production and Processing Traits of Blue Catfish, Blue Catfish X Channel Catfish Hybrids, and Two Strains of Channel Catfish - (Abstract Only)
Bosworth, B.G., Torrans, E.L. 2006. Production and Processing Traits of Blue Catfish, Blue Catfish X Channel Catfish Hybrids, and Two Strains of Channel Catfish [Abstract]. In: Research and Review; A Compilation of Abstracts of Research on Channel Catfish. Catfish Farmers of America Catfish Research Workshop, February 23-24, 2006, San Antonio, Texas. p. 13-14.
Effects of Organic Fertilization and "Organic" Diets on Production of Channel Catfish in Earthen Ponds - (Peer Reviewed Journal)
Li, M.H., Robinson, E.H., Mischke, C.C., Bosworth, B.G., Torrans, E.L. 2006. Effects of Organic Fertilization and "Organic" Diets on Production of Channel Catfish in Earthen Ponds. North American Journal of Aquaculture. 68:53-62.
Disposal of Small-Scale Fish Processing Waste Through Composting - (Abstract Only)
Torrans, E.L. 2006. DISPOSAL OF SMALL-SCALE FISH PROCESSING WASTE THROUGH COMPOSTING [Abstract]. In: Book of Abstracts. Aquaculture America, February 13-16, 2006, Las Vegas, Nevada. p. 330.
Oxygen Consumption of Channel Catfish Ictalurus punctatus Eggs and Fry: Implications for Hatchery Management - (Abstract Only)
Torrans, E.L., Steeby, J. 2006. Oxygen Consumption of Channel Catfish Ictalurus punctatus Eggs and Fry: Implications for Hatchery Management [Abstract]. In: Book of Abstracts. Aquaculture America, February 13-16, 2006, Las Vegas, Nevada. p. 328.
A Micro-respirometer for Measuring Oxygen Consumption of Channel Catfish Ictalurus punctatus Eggs and Fry - (Abstract Only)
Torrans, E.L. 2006. A Micro-respirometer for Measuring Oxygen Consumption of Channel Catfish Ictalurus punctatus Eggs and Fry [Abstract]. In: Book of Abstracts. Aquaculture America, February 13-16, 2006, Las Vegas Nevada. p. 329.
Effect of Oxygen Management on Culture Performance of Channel Catfish Ictalurus punctatus in Earthen Ponds - (Peer Reviewed Journal)
Torrans, E.L. 2005. Effect of Oxygen Management on Culture Performance of Channel Catfish Ictalurus punctatus in Earthen Ponds. North American Journal of Aquaculture. 67:275-288.
Inexpensive Spray Shield for Alfalfa Valves Detailed - (Trade Journal)
Torrans, E.L., Santucci, J. 2005. Inexpensive Spray Shield for Alfalfa Valves Detailed. The Catfish Journal. 19(5):15.
Aeration in Channel Catfish Ponds - (Abstract Only)
Torrans, E.L. 2005. Aeration in Channel Catfish Ponds [Abstract]. In: Book of Abstracts. Aquaculture America, January 17-20, 2005, New Orleans, Louisiana. p. 455.
The Effect of Dissolved Oxygen on Production of Channel Catfish in Ponds - How Low Should We Go? - (Popular Publication)
Torrans, E.L. 2003. The effect of dissolved oxygen on production of channel catfish in ponds - how low should we go?. The Catfish Journal 18(4):10,12.
Effect of (Minimum) D.O. Concentration on Channel Catfish - (Popular Publication)
Torrans, E.L. 2004. Effect of (Minimum) D.O. Concentration on Channel Catfish. NWAC (National Warmwater Aquaculture Center) Aquaculture Newsletter. 7(1):10-11.
Effect of D.O. on Food Consumption, Growth, Production, and Food Conversion in Channel Catfish, Ictalurus punctatus, Grown in Earthen Ponds - (Abstract Only)
Torrans, E.L. 2004.Effect of D.O. on Food Consumption, Growth, Production, and Food Conversion in Channel Catfish, Ictalurus punctatus, Grown in Earthen Ponds. [Abstract]. In: Abstract Book. Aquaculture America, March 1-5, 2004, Honolulu, Hawaii. p. 597.
"Sock-saver" Shows Promise - (Popular Publication)
Torrans, E.L., Hogue, Jr., C.D., Pilkinton, S. 2003. "Sock-saver" Shows Promise.17(10):16-17. . The Catfish Journal.
The Sock-saver: A Small Trailer for Providing Liquid Oxygen to Remote Sites on Commercial Channel Catfish Farms - (Peer Reviewed Journal)
Torrans, E.L., Hogue, Jr., C.D., Pilkinton, S. 2003. The Sock-saver: A Small Trailer for Providing Liquid Oxygen to Remote Sites on Commercial Channel Catfish Farms. North American Journal of Aquaculture. 65:260-265.
Holding Channel Catfish in Socks with Liquid Oxygen (LOX) - (Abstract Only)
Torrans, E.L., Hogue, Jr., C.D., Pilkinton, S. 2003. Holding Channel Catfish in Socks with Liquid Oxygen (LOX). [Abstract]. Book of Abstracts. Catfish Farmers of Arkansas Annual Meeting, January 30 - February 1, 2003, Austin Hotel, Hot Springs, Arkansas. CDROM.
Effect of Morning (Minimum) D.O. on Water Quality, Food Consumption, Growth, Production, and Food Conversion in Channel Catfish - (Abstract Only)
Torrans, E.L. 2003. EFFECT OF MORNING (MINIMUM) D.O. ON WATER QUALITY, FOOD CONSUMPTION, GROWTH, PRODUCTION, AND FOOD CONVERSION IN CHANNEL CATFISH [Abstract]. In: Research and Review; A Compilation of Abstracts of Research on Channel Catfish. Catfish Farmers of America Catfish Culture Research Symposium, February 21, 2003, Sandestin, Florida. p. 8.
Lox for the Socks: Reducing Weigh-Backs with Liquid Oxygen - (Abstract Only)
Torrans, E.L., Hogue, Jr., C.D., Pilkinton, S. 2003. LOX FOR THE SOCKS: REDUCING WEIGH-BACKS WITH LIQUID OXYGEN [Abstract]. In: Research and Review; A Compilation of Abstracts of Research on Channel Catfish. Catfish Farmers of America Catfish Culture Research Symposium, February 21, 2003, Sandestin, Forida. p. 54.
Using Liquid Oxygen to Improve Conditions for Holding Channel Catfish (Ictalurus Punctatus) in Socks - (Abstract Only)
Torrans, E.L., Hogue, Jr., C.D., Pilkinton, S. 2003. USING LIQUID OXYGEN TO IMPROVE CONDITIONS FOR HOLDING CHANNEL CATFISH (ICTALURUS PUNCTATUS) IN SOCKS. In: Catfish Processors Conference, Feb. 25-26, 2003, Starkville, Mississippi. 2003 CDROM.
Reducing Weigh-backs with Liquid Oxygen - (Popular Publication)
Torrans, E.L., Hogue, Jr., C.D., Pilkinton, S. 2002. Reducing Weigh-backs with Liquid Oxygen. NWAC (National Warmwater Aquaculture Center) Aquaculture Newsletter. 5(2):10-11.
Providing Liquid Oxygen to Remote Sites on Commercial Channel Catfish Farms - (Abstract Only)
Torrans, E.L., Hogue, Jr., C.D., Pilkinton, S. 2003. Providing Liquid Oxygen to Remote Sites on Commercial Channel Catfish Farms. [Abstract]. In: Book of Abstracts. Aquaculture America, February 18-21, 2003, Louisville, Kentucky. p. 294.
Last Modified: 1/3/2011