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                    U.S. DEPARTMENT OF AGRICULTURE
 Warmwater Aquaculture Research Unit: Stoneville, MS
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ARS Home Southeast Area Stoneville, Mississippi Warmwater Aquaculture Research Unit People & Locations







Brian  Ott
                        Warmwater Aquaculture Research Unit

                        




                        
                        Research Fish Biologist
                        Phone: (662) 686-5436
                        
                        
                        Fax: (662) 686-3044(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsOptimizing Production Systems for Removal of Ammonia
                                                    Reimbursable Cooperative Agreement
                                                                    (R)Accession Number: 443947**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)Effect of hypoxia duration and pattern on channel catfish (Ictalurus punctatus) neuropeptide gene expression and hematology
                                                        

- (Peer Reviewed Journal)Ott, B.D., Chisolm, D.O., Griffin, M.J., Torrans, E.L., Allen, P.J. 2023. Effect of hypoxia duration and pattern on channel catfish (Ictalurus punctatus) neuropeptide gene expression and hematology. Journal of Comparative Physiology. 193:631-645. https://doi.org/10.1007/s00360-023-01521-5.Effect of brooder age and size on fry size variation in channel catfish

- (Trade Journal)Ott, B.D., Bosworth, B.G., Torrans, E.L., Waldbieser, G.C. 2023. Effect of brooder age and size on fry size variation in channel catfish. American Fisheries Society Newsletter. P. P14.Evaluating nanopore sequencing for microbial community characterization in catfish pond water
                                                        

- (Peer Reviewed Journal)Older, C.E., Richardson, B.M., Wood, M.L., Waldbieser, G.C., Ware, C., Griffin, M.J., Ott, B.D. 2023. Evaluating nanopore sequencing for microbial community characterization in catfish pond water. Journal of the World Aquaculture Society. https://doi.org/10.1111/jwas.13002.Biofiltration reactivation kinetics of a Cyclobio fluidized sand filter in a warmwater recirculating aquaculture system
                                                        

- (Peer Reviewed Journal)Pfeiffer, T.J., Ott, B.D. 2023. Biofiltration reactivation kinetics of a Cyclobio fluidized sand filter in a warmwater recirculating aquaculture system. North American Journal of Aquaculture. 85(2):166-173. https://doi.org/10.1002/naaq.10282.Dissolved oxygen management on catfish farms

- (Popular Publication)Ott, B.D. 2023. Dissolved oxygen management on catfish farms. NWAC (National Warmwater Aquaculture Center) Aquaculture Newsletter. 18:(1).Effect of brooder age and size on fry size variation in channel catfish.
                                                        

- (Peer Reviewed Journal)Ott, B.D., Bosworth, B.G., Torrans, E.L., Waldbieser, G.C. 2023. Effect of brooder age and size on fry size variation in channel catfish. North American Journal of Aquaculture. https://doi.org/10.1002/naaq.10280.Physiological response of channel (Ictalurus punctatus) and hybrid (I. punctatus x I. furcatus) catfish following Bolbophorus damnificus infection
                                                        

- (Peer Reviewed Journal)Gunn, M.A., Griffin, M.J., Ott, B.D., Rosser, G.T., Wise, D.J., Allen, P.J. 2022. Physiological response of channel (Ictalurus punctatus) and hybrid (I. punctatus x I. furcatus) catfish following Bolbophorus damnificus infection. Aquaculture. 563(2). https://doi.org/10.1016/j.aquaculture.2022.739016.Design of a Vacuum Degassing Apparatus to Reduce Nitrogen Supersaturation and Maintain Hypoxia in Well-Water
                                                        

- (Peer Reviewed Journal)Ott, B.D., Torrans, E.L., Allen, P.J. 2022. Design of a Vacuum Degassing Apparatus to Reduce Nitrogen Supersaturation and Maintain Hypoxia in Well-Water. North American Journal of Aquaculture. https://doi.org/10.1002/naaq.10263.Quantitative PCR assays to measure the HPI axis neuropeptides corticotropin-releasing factor (CRF) and urotensin I (UI) in channel catfish (Ictalurus punctatus)
                                                        

- (Peer Reviewed Journal)Ott, B.D., Torrans, E.L., Griffin, M.J., Allen, P.J. 2022. Quantitative PCR assays to measure the HPI axis neuropeptides corticotropin-releasing factor (CRF) and urotensin I (UI) in channel catfish (Ictalurus punctatus). Aquaculture. 555:738253. https://doi.org/10.1016/j.aquaculture.2022.738253.Effects of density on production of hybrid catfish in intensively aerated earthen ponds where dissolved oxygen is not a limiting factor
                                                        

- (Peer Reviewed Journal)Torrans, E.L., Ott, B.D. 2019. Effects of density on production of hybrid catfish in intensively aerated earthen ponds where dissolved oxygen is not a limiting factor. North American Journal of Aquaculture. 81(4):417-423. https://doi.org/10.1002/naaq.10110.Performance of channel catfish and hybrid catfish in single-batch, intensively aerated ponds
                                                        

- (Peer Reviewed Journal)Kumar, G., Li, M., Wise, D., Mischke, C., Rutland, B., Tiwari, A., Aarattuthodiyil, S., Ott, B.D., Torrans, E.L., Tucker, C.S. 2019. Performance of channel catfish and hybrid catfish in single-batch, intensively aerated ponds. North American Journal of Aquaculture. 81:406-416. https://doi.org/10.1002/naaq.10109.It starts with the brooder

- (Abstract Only)Effect of grading fingerling hybrid catfish (Channel Catfish X Blue Catfish) on growth, production, feed conversion, and foodfish size distribution.
                                                        

- (Peer Reviewed Journal)Torrans, E.L., Ott, B.D. 2018. Effect of grading fingerling hybrid catfish (Channel Catfish X Blue Catfish) on growth, production, feed conversion, and foodfish size distribution.. North American Journal of Aquaculture. https://doi.org/10.1002/naaq.10024.Oxygen requirement of separated hybrid catfish eggs

- (Popular Publication)Torrans, E.L., Ott, B.D. 2017. Oxygen requirement of separated hybrid catfish eggs. NWAC (National Warmwater Aquaculture Center) Aquaculture Newsletter. 14(1):8-9.Oxygen requirements of separated hybrid catfish female Ictalurus punctatus male I. furcatus eggs

- (Abstract Only)Torrans, E.L., Ott, B.D. 2018. Oxygen requirements of separated hybrid catfish female Ictalurus punctatus male I. furcatus eggs. Aquaculture America Conference. P. 359.Effect of graded fingerlings on hybrid catfish food fish size distribution

- (Abstract Only)Torrans, E.L., Ott, B.D. 2017. Effect of graded fingerlings on hybrid catfish food fish size distribution. Aquaculture America Conference. P. 469.No evidence for intercohort cannibalism in mixed-size cultures of food-size and fingerling hybrid catfish (channel catfish x blue catfish) grown in ponds in winter or summer

- (Peer Reviewed Journal)Torrans, E.L., Ott, B.D. 2015. No evidence for intercohort cannibalism in mixed-size cultures of food-size and fingerling hybrid catfish (channel catfish x blue catfish) grown in ponds in winter or summer. North American Journal of Aquaculture. 78(1):52-56.Intensive production of hybrid catfish

- (Abstract Only)Torrans, E.L., Ott, B.D., Tucker, C.S. 2016. Intensive production of hybrid catfish. Annual Meeting World Aquaculture Society. A. 299.Intensive production of hybrid catfish-14 tons per acre in earthen

- (Abstract Only)Torrans, E.L., Ott, B.D. 2016. Intensive production of hybrid catfish-14 tons per acre in earthen. Aquaculture America Conference. P. 115.Cannibalism in single-batch hybrid catfish production ponds

- (Abstract Only)Torrans, E.L., Ott, B.D. 2016. Cannibalism in single-batch hybrid catfish production ponds. Aquaculture America Conference. P. 116.Impact of minimum daily dissolved oxygen concentration on production performance of hybrid female channel catfish x male blue catfish

- (Peer Reviewed Journal)Torrans, E.L., Ott, B.D., Bosworth, B.G. 2015. Impact of minimum daily dissolved oxygen concentration on production performance of hybrid female channel catfish x male blue catfish. North American Journal of Aquaculture. 77(4):485-490.Effects of stocking density on production traits of channel catfish Ictalurus punctatus x blue catfish Ictalurus furcatus hybrids

- (Peer Reviewed Journal)Bosworth, B.G., Ott, B.D., Torrans, E.L. 2015. Effects of stocking density on production traits of channel catfish Ictalurus punctatus x blue catfish Ictalurus furcatus hybrids. North American Journal of Aquaculture. 77:437-443.Effect of grading fingerling hybrid catfish on food fish size distribution

- (Abstract Only)Torrans, E.L., Ott, B.D. 2015. Effect of grading fingerling hybrid catfish on food fish size distribution. Meeting Abstract. P. 15.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.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.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.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.Effect of do concentration on growth and production of hybrid catfish

- (Abstract Only)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.Improving Catfish Fry Survival

- (Abstract Only)Torrans, E.L., Ott, B.D. 2011. Improving Catfish Fry Survival. Aquaculture America Conference. P.117.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.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. 445Impact 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.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.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.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.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.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.


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