Kevin Fitzsimmons, PhD

Professor UofARIZONA, Past President, World Aquaculture Society, specialist in Tilapia Aquaculture

Research Expertise

aquaculture
marine biology
halophytes
seaweeds
tilapia

About

50 year experience in sustainable aquaculture with focus on tilapia, shrimp and seaweeds.

Publications

Determination of the infectious nature of the agent of acute hepatopancreatic necrosis syndrome affecting penaeid shrimp
Diseases of Aquatic Organisms
2013
The effect of pH on phosphorus availability and speciation in an aquaponics nutrient solution
Bioresource Technology
2016
Tilapia Production Systems in the Americas: Technological Advances, Trends, and Challenges
Reviews in Fisheries Science
2002
From Africa to the world—The journey of Nile tilapia
Reviews in Aquaculture
2023
Effect of elevated CO2 on the community metabolism of an experimental coral reef
Global Biogeochemical Cycles
2003
Environmental, economic, and social sustainability in aquaculture: the aquaculture performance indicators
Nature Communications
2024
Halophytes for the treatment of saline aquaculture effluent
Aquaculture
1999
Surface Water Pollution
Environmental and Pollution Science
2019
Cold tolerance of tilapia species and hybrids
Aquaculture International
2000
Effluent from a biofloc technology (BFT) tilapia culture on the aquaponics production of different lettuce varieties
Ecological Engineering
2017
Tilapia aquaculture in the Americas: vol. 2
Aquaculture
2001
Why the Most Important Idea in Behavioral Decision-Making Is a Fallacy
Scientific American
2018
Phosphorus dynamics modeling and mass balance in an aquaponics system
Agricultural Systems
2017
El impacto del represamiento del Río Colorado en la pesquería del camarón en el Alto Golfo de California, México
Frontera Norte
2021
Use of Bacillus spp. to enhance phosphorus availability and serve as a plant growth promoter in aquaponics systems
Scientia Horticulturae
2016
Characterization of effluent from an inland, low-salinity shrimp farm: what contribution could this water make if used for irrigation
Aquacultural Engineering
2003
Food organism availability and resource partitioning in organically or inorganically fertilized Tilapia rendalli ponds
Aquaculture
2000
Inland saline aquaculture
New Technologies in Aquaculture
2009
Tilapia–Shrimp Polyculture in Negros Island, Philippines: A Review
Journal of the World Aquaculture Society
2008
Relações entre rios e o aqüífero sedimentar da Bacia de São Paulo em área de exploração intensiva de água subterrânea
Unknown Venue
Characterization of the nutritional quality of amaranth leaf protein concentrates and suitability of fish meal replacement in Nile tilapia feeds
Aquaculture Reports
2017
Evaluation of Brewer’s Waste as Partial Replacement of Fish Meal Protein in Nile Tilapia, Oreochromis niloticus, Diets
Journal of the World Aquaculture Society
2008
Water use, productivity and forage quality of the halophyteAtriplex nummulariagrown on saline waste water in a desert environment
Journal of Arid Environments
1998
Experiments on an integrated aquaculture system (seaweeds and marine fish) on the Red Sea coast of Saudi Arabia: efficiency comparison of two local seaweed species for nutrient biofiltration and production
Reviews in Aquaculture
2012
Prospect and Potential for Global Production
Tilapia
2024
Illustrating the hidden economic, social and ecological values of global forage fish resources
Resources, Conservation and Recycling
2019
Evaluation of submerged surface flow (SSF) constructed wetlands for recirculating tilapia production systems
Aquacultural Engineering
2008
Spore culture of the edible red seaweed, Gracilaria parvispora (Rhodophyta)
Aquaculture
1996
Transcriptional Response of Delta-9-Desaturase Gene to Acute and Chronic Cold Stress in Nile Tilapia, Oreochromis niloticus
Journal of the World Aquaculture Society
2010
Effect of water motion on the cultivation of the economic seaweed Gracilaria parvispora (Rhodophyta) on Molokai, Hawaii
Aquaculture
2004
An experimental study on closed-polyculture of penaeid shrimp with tilapia and constricted tagelus
Aquaculture
2001
Mixed culture of tilapia (Oreochromis niloticus) and freshwater prawn (Macrobrachium rosenbergii) in periphyton-based ponds
Unknown Venue
Nutritional mitigation of winter thermal stress in Nile tilapia by propolis-extract: Associated indicators of nutritional status, physiological responses and transcriptional response of delta-9-desaturase gene
Aquaculture
2019
Tilapia–Shrimp Polyculture
Tilapia in Intensive Co‐culture
2016
Trade in fisheries and aquaculture products: Global markets, production, and food security
Unknown Venue
2025
Partial replacement of dietary soybean meal by high‐protein distiller's dried grains (HPDDG) supplemented with protease enzyme for European seabass,Dicentrarchus labraxfingerlings
Aquaculture Nutrition
2020
Phosphorus Budget in Integrated Multitrophic Aquaculture Systems with Nile Tilapia, Oreochromis niloticus, and Amazon River Prawn, Macrobrachium amazonicum
Journal of the World Aquaculture Society
2017
Tilapia
African American Studies Center
2005
Evaluation of Biomass Yield and Water Treatment in Two Aquaponic Systems Using the Dynamic Root Floating Technique (DRF)
Sustainability
2015
A sustainable culture system for Gracilaria parvispora (Rhodophyta) using sporelings, reef growout and floating cages in Hawaii
Aquaculture
1998
Genetic variation in tilapia populations in man-made reservoirs in Sri Lanka
Aquaculture International
1997
Physical-Chemical Characteristics of Water
Environmental and Pollution Science
2019
Normal Histology, Regeneration, and Repair
Color Atlas of Histopathology of the Cervix Uteri
2006
Integrated production of fish (pacu Piaractus mesopotamicus and red tilapia Oreochromis sp.) with two varieties of garnish (scallion and parsley) in aquaponics system
Aquaculture International
2017
Biofloc Technology (BFT) in Tilapia Culture
Biology and Aquaculture of Tilapia
2021
Hydroponic horticulture using residual waters from Oreochromis niloticus aquaculture with biofloc technology in photoautotrophic conditions with Chlorella microalgae
Aquaculture Research
2020
Tilapia polyculture: a global review
Aquaculture Research
2015
The effects of estradiol-17β on the sex reversal, survival, and growth of green sunfish Lepomis cyanellus
Aquaculture
2023
Effect of Nile tilapia (Oreochromis niloticus) on the growth performance of Pacific white shrimp (Litopenaeus vannamei) in a sequential polyculture system
Latin American Journal of Aquatic Research
2012
Farming Tilapia in Saline Waters
Tilapia
2024
Halophyte irrigation: an overlooked strategy for management of membrane filtration concentrate
Desalination
1997
Science and policy dilemmas in the management of agricultural waste waters: the case of the Salton Sea, CA, USA
Environmental Science & Policy
1999
Oreochromisniloticusaquaculture with biofloc technology, photoautotrophic conditions andChlorellamicroalgae
Aquaculture Research
2020
Estimating occupancy and detection probability of juvenile bull trout using backpack electrofishing gear in a west-central Alberta watershed
Canadian Journal of Fisheries and Aquatic Sciences
2015
Consumers, customers, marketplaces and markets in New Product Development — a roadmap through marketing and launching in product development
Case Studies in Food Product Development
2008
Communications: Effects of Reducing Dietary Lipid Levels on Growth and Body Composition of Hybrid Tilapia in an Intensive Recirculating-Water System
The Progressive Fish-Culturist
1997
Evaluation of a recirculating hydroponic bed bioreactor for removal of contaminants of emerging concern from tertiary-treated wastewater effluent
Chemosphere
2021
Effect of dietary phytase on phosphorus use efficiency and dynamics in aquaponics
Aquaculture International
2017
INTEGRATION OF AQUACULTURE AND ARID LANDS AGRICULTURE FOR WATER REUSE AND REDUCED FERTILIZER DEPENDENCY
Experimental Agriculture
2010
Giant Salvinia, Salvinia molesta (Salviniaceae): Evaluation Of Sub-Optimum Temperatures on Survival of the Giant Salvinia Weevil, Cyrtobagous salviniae (Coleoptera: Curculionidae) and Integration of Management Practices with Aquatic Herbicides
Unknown Venue
A renal mycosis of an adult hybrid red tilapia, Oreochromis mossambicus X O. hornorum , caused by the imperfect fungus, Paecilomyces marquandii
Journal of Fish Diseases
1988
The Value of Pig Manure as a Source of Nutrients for Semi-Intensive Culture of Nile Tilapia in Ponds (A Review)
Agricultural Sciences
2014
Effects of stocking density on the performance of lettuce ( Lactuca sativa ) in small‐scale lettuce‐Nile tilapia ( Oreochromis niloticus L.) aquaponic system
Aquaculture, Fish and Fisheries
2022
Tilapia (family: Cichlidae).
Finfish aquaculture diversification
2010
USE OF AN EDIBLE RED SEAWEED TO IMPROVE EFFLUENT FROM SHRIMP FARMS
Journal of Phycology
2001
Crayfish (Cherax quadricarinatus) susceptibility to acute hepatopancreatic necrosis disease (AHPND)
Journal of Invertebrate Pathology
2021
13th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 26–29 August 2013
Unknown Venue
2013
Modelling thermal environment of a recirculating aquaculture facility
Aquaculture
1996
The effects of Yucca schidigera and Quillaja saponaria on growth performance and enzymes activities of juvenile shrimp Litopenaeus vannamei cultured in low salinity water
Latin American Journal of Aquatic Research
2016
Tilapia zillii (redbelly tilapia)
CABI Compendium
2015
Exploring Alternative Giant Salvinia (Salvinia molesta D.S. Mitchell) Management Strategies
Unknown Venue
Aquaculture Governance Indicators: A diagnostic framework for steering towards sustainability
PLOS Sustainability and Transformation
2025
Effects of Broad Bean Diet on the Growth Performance, Muscle Characteristics, Antioxidant Capacity, and Intestinal Health of Nile Tilapia (Oreochromis niloticus)
Animals
2023
Growth and nutrient conversion of white shrimp Litopenaeus vannamei (Boone) and Nile tilapia Oreochromis niloticus L. in an integrated closed recirculating system
Aquaculture Research
2011
Unstable supply and future shortages of wild forage fish heighten risks to global fed aquaculture production
Nature Food
2025
Tilapia in High‐Rate Aquaculture Processes
Tilapia in Intensive Co‐culture
2016
Sonication-based isolation and enrichment of Chlorella protothecoides chloroplasts for Illumina genome sequencing
Journal of Applied Phycology
2013
Growth differences among widely separated geographic accessions of fourwing saltbush (Atriplex canescens) in the great basin desert, New Mexico, USA
Arid Land Research and Management
1998
Exogenous salicylic acid improves freezing tolerance of spinach (Spinacia oleracea L.) leaves
Cryobiology
2018
Diversity and biomass dynamics of marine algae in Biosphere II's tropical reef macrocosm
Ecological Engineering
2005
Microbial safety considerations of flooding in primary production of leafy greens: A case study
Food Research International
2015
Economic Feasibility of Polyculture of Tiger Shrimp (Penaeus monodon) with Nile Tilapia (Oreochromis niloticus) in Brackishwater Ponds
Asian Fisheries Science
1991
Deep Vein Thrombosis and the Neurosurgical Patient
Malaysian Journal of Medical Sciences
2019
Africa Sustainable Livestock 2050: Presence and biosecurity practices of youth in poultry value chains
Unknown Venue
2022
Land Ownership, Arizona, 1988
Spatial Data Explorer Repository
1988
Development of aquaculture protocols and gonadal differentiation of green sunfish (Lepomis cyanellus)
Aquaculture
2022
Review of: "The Growth Performance of Nile Tilapia (Oreochromis Niloticus) Fed Low-Cost Fish Feeds Formulated From Fish By-Products, Fishery By-Catch and Pig Blood-Meal"
Unknown Venue
2024
Tilapia health: quo vadis?
Reviews in Aquaculture
2023
Effect of stocking density on growth performance of monosex Nile Tilapia (Oreochromis niloticus) in the aquaponic system integrated with lettuce (Lactuca sativa)
Aquaculture and Fisheries
2022
Pacific white shrimp and tomato production using water effluents and salinity-tolerant grafted plants in an integrated aquaponic production system
Journal of Cleaner Production
2021

Education

University of Arizona

Ph.D., Fisheries / December, 1996

University of West Florida

M.S., Marine Biology / December, 1982

University of Arizona

BS, Ecology and Environmental Biology / December, 1978

Experience

The University of Arizona

Professor / May, 1981 — December, 2027

Western Regional Aquaculture Center

Executive Director / December, 2025 — Present

F3 Competition

Chair and Judge of “F3 Fish-Free Feed Challenge”: Fish Oil and Fish Meal-Free Aquafeed Competition / January, 2015 — Present

I am the developer and chair of a global competition to promote innovation in seafood-free and seafood-reduced aquaculture feeds. Our goal is to promote innovation of alternative ingredients and reward commercialization that reduces the amount of fishmeal and fish oil used in aquaculture feeds. Funded by The World Bank and judged by University of Arizona, Monterey Bay Aquarium and New England Aquarium, our global competition has participants from South Africa, Burma, Indonesia, Pakistan, US, the Netherlands, Belgium, Thailand, and even Trinidad and Tobago. The world’s wild fish stocks are rapidly declining due to over-fishing, in large part due to demand for wild fishmeal and fish oil for feed. The ocean food chain depends critically on these fish, and we are working to encourage solutions. Can you help / get involved? Please email me: kevinfitzf3@gmail.com.

University of Arizona

Professor and Director of International Programs / May, 1981 — Present

Lead research program on arid lands aquaculture, teach courses in phycology, wetland ecology and aquaculture, provide extension support for Arizona farmers interested in aquaculture. As Director for International Programs, I lead research programs abroad, supervise the Peace Corps recruiter on campus, obtain funds and coordination for Borlaug and Fulbright Fellows and provide connections with international alumni, students and visiting delegations and scholars.

Monterey Bay Aquarium

Technical Advisor on Seafood Watch Program / January, 2012 — Present

The Monterey Bay Aquarium Seafood Watch program is the leading list of sustainable seafood for consumers. Have served on the Technical Advisory Board with this Seafood Watch Program.

International Symposia on Tilapia in Aquaculture (ISTA)

Organizer and Chair / January, 1994 — Present

Chairman and organizer of the world conferences focused on farming of tilapia.

GIZ

International Team Leader / January, 2018 — July, 2021

Leading Coastal Team for Myanmar Sustainable Aquaculture Program as consultant on GIZ - European Union supported project

USAID

Director, Sustainable Seafood Development Project for Burma / January, 2014 — December, 2017

Implementing and directing multi-million dollar development project in Myanmar (Burma) working with four universities and in country staff to support capacity building at universities and private sector. Goal is to increase expertise and sustainability in production, processing and marketing of seafood through training, demonstration and provision of advanced technologies that will allow Myanmar to provide high quality seafood for domestic and international markets.

The World Bank Group

Consultant / January, 1994 — December, 1996

Consultant on aquaculture development project for the country of Mexico. Worked at Federal and State levels to develop a national project for Mexico to cover education, academics, commercial and social development, processing and international trade and market expansion.

US National Marine Fisheries Service

Port Sampler - Destin, Florida / January, 1979 — December, 1980

I served as the billfish coordinator collecting catch and biological data on all marlins, sailfish and swordfish that were caught and from those who were fishing for these target species from the ports of Destin and Fort Walton Beach. Also served as one of the officials at billfish tournaments over two fishing seasons.

Links & Social Media

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