Overview
Professional memberships
- Fish Health and Nutrition Research Group Leader
- Environmental and Applied Biology Research Group
- Marine Institute
- World Aquaculture Society
- Society for Applied Microbiology
- World Aquaculture Society Publication Committee
- Fellow of the Higher Education Academy (FHEA)
Roles on external bodies
- Aquaculture Research (2010-2022)
- PLoS ONE (2012-present)
- Frontiers in Microbiology (2017-present)
Editor, Functional Aquafeeds special issue, Journal of the World Aquaculture Society (2018)
- Chairperson for:
- The Animal and Veterinary Sciences & Agro-food biotechnology evaluation Panel of the 4th (2021) Edition of the Stimulus of Scientific Employment, Individual Support Call (CEECInd 4th Edition), The Portuguese Foundation for Science and Technology (FCT)
- The Animal and Veterinary Sciences & Agro-food biotechnology evaluation Panel of the 5th (2022) Edition of the Stimulus of Scientific Employment, Individual Support Call (CEECInd 5th Edition), The Portuguese Foundation for Science and Technology (FCT)
- Panel member for:
- Biotechnology and Biological Sciences Research Council (BBSRC) and Natural and Environmental Research Council (NERC) Sustainable and Resilient Aquaculture Systems in Southeast Asia funding call (2024)
- Panel of experts member for ground-breaking research (FRIPRO) for the Research Council of Norway (RCN), Biology panel (2024-2025)
- RCN Researcher Project for Young Talents (FRIPRO), 2023 (Panel 21) and 2025 (Panels 5 and 25)
- RCN Animal Health and Welfare panel (panel AHW1), 2025
- RCN Researcher Project and Young Research Talents panel, 2019
- National Oceanic and Atmospheric Administration (NOAA; USA) National Sea Grant 2022 Early State Propagation Strategies for Aquaculture Species Competition
- The Portuguese Foundation for Science and Technology (FCT) Exploratory Projects in All Scientific Domains 2023; "Animal and Veterinary Sciences and Agro-Food Biotechnology" Evaluation Panel.
- The Portuguese Foundation for Science and Technology (FCT) SR&TD Project Grants call, Agriculture, Forestry and Fisheries Panel, 2020
- FCT Stimulus of Scientific Employment, Individual Support call (CEECInd), Agricultural and Veterinary Sciences Panel of the (2017, 2018, 2019, 2020 & 2023 calls)
- The National Agency for the Evaluation of Universities and Research Institutes (ANVUR), Italy; eValuation of Quality of Research (VQR) (2004-2010 & 2011-2014 rounds)
Supervised research degrees
Recent research projects:
- AQUAWELL
- Functional feed additives for aquafeeds
- Reassembly of external microbiome following husbandry stressors
- Alleviating intestinal inflammation (enteritis)
- Sustainable Aquafeeds
- Microbial solutions to improve shrimp health and production
- Low-cost, high-quality algal biomass for aquaculture feed
- Salmon and sea lice infections
Teaching interests
Programme Leader:
MSc Sustainable Aquaculture and Fisheries
Module leader:
BIO504: Health and Production in Aquaculture
BIOL322/Z: Aquatic Microbial Ecology
PROJ522: MSc Dissertation
PROJ523: MRes Dissertation
Additional information
LinkedIn profile
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 1 No Poverty
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SDG 4 Quality Education
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SDG 9 Industry, Innovation, and Infrastructure
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SDG 12 Responsible Consumption and Production
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SDG 14 Life Below Water
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SDG 15 Life on Land
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SDG 17 Partnerships for the Goals
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Collaborations and top research areas from the last five years
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Autolyzed brewer's yeast enhances growth and intestinal health in early life stages of Nile tilapia (Oreochromis niloticus L.)
Odu-Onikosi, S., Momoh, T., Eynon, B., Pontefract, N., Kuri, V., Kühlwein, H. & Merrifield, D., Feb 2025, In: Journal of the World Aquaculture Society. 56, 1, e13120.Research output: Contribution to journal › Article › peer-review
Open AccessFile49 Downloads (Pure) -
Black soldier fly, Hermetia illucens, larvae meal improves intestinal health and growth performance of Nile tilapia, Oreochromis niloticus, juveniles
Maulu, S., Eynon, B., Abarra, S., Rawling, M. & Merrifield, D., 9 Jun 2025, In: Journal of the World Aquaculture Society. 56, 3, e70035.Research output: Contribution to journal › Article › peer-review
Open AccessFile11 Downloads (Pure) -
Brewers’ Yeast (Saccharomyces cerevisiae) Purified Functional Feed Additives Mitigate Soybean Meal-Induced Enteritis in Atlantic Salmon (Salmo salar) Parr
Momoh, T. A., Odu-Onikosi, S. G., Amulejoye, F. D., Wilson, J., Eynon, B., Kühlwein, H., Kuri, V. & Merrifield, D. L., 10 Apr 2025, In: Aquaculture Nutrition. 2025, 1, 8555658.Research output: Contribution to journal › Article › peer-review
Open AccessFile4 Downloads (Pure) -
Impact of Autolysed Brewer’s Yeast and Soluble Dried Yeast Extract on Growth Performance and Mucosal Health of Atlantic Salmon (Salmo salar) Parr
Merrifield, D. L., Odu-Onikosi, S. G., Momoh, T. A., Abarra, S. T., Wood, N. E., Amulejoye, F. D., Emery, M., Harper, G. M., Eynon, B., Kuri, V. & Kühlwein, H., 23 Jan 2025, In: Animals. 15, 3, 26 p., 323.Research output: Contribution to journal › Article › peer-review
Open AccessFile37 Downloads (Pure) -
In Vitro and In Vivo Evaluation of Autochthonous Probiotics and Their Effects on the Mucosal Health of Nile Tilapia (Oreochromis niloticus)
Abarra, S. T., Maulu, S., Odu-Onikosi, S. G., Momoh, T. A., Eynon, B., Emery, M., Rawling, M. & Merrifield, D. L., 15 Nov 2025, In: Animals. 15, 22, 3296.Research output: Contribution to journal › Article › peer-review
Open AccessFile2 Downloads (Pure)
Theses
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Evaluation of selected probiotics and bovine lactoferrin as feed supplements for rainbow trout (Oncorhynchus mykiss Walbaum) for applications in aquaculture
Merrifield, D. (Author), Davies, S. (Director of Studies (First Supervisor)) & Bradley, G. (Other Supervisor), 2009Student thesis: PhD
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