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Daniel Merrifield![]() Dr Daniel Merrifield - (D L Merrifield)
Role Qualifications & background PhD - Evaluation of selected probiotics and bovine lactoferrin as feed supplements for rainbow trout (Oncorhynchus mykiss Walbaum) for applications in aquaculture. The University of Plymouth Professional membership Roles on external bodies Editorial and referee commitments Editor-in-Chief for the Journal of Aquaculture Research and Development Referee for the Flanders (Fonds Wetenschappelijk Onderzoek - Vlaanderen, FWO) Research Foundation
African Journal of Biotechnology Teaching interests BIOL1405
Research interests UoP Research group membership Centre for Agricultural and Rural Sustainability (CARS)Food, Nutrition and Health Research degrees awarded to supervised students
Current Completions DoS 2nd PhD 4 10 2 ResM 1 3 Masters (MSc/MRes) 3 1 4
Hugo Alexander Jaramillo Torres - PhD student; Probiotics in aquaculture Mark Rawling - PhD student; The effect of novel protein sources from biotechnological, plant and insect origins on carp health and production. Rebin Akoy - Research Masters (ResM) student; Probiotics in poultry (with Dr Jane Beal)
Ayub Anwar - Research Masters (ResM) student; Fish nutrition (with Prof Simon Davies) Ibrahim Ibrahim - Research Masters (ResM) student; Probiotics in aquaculture (with Prof Simon Davies) Rebaz Koy - PhD student; LAB as food preservatives (with Victor Kuri) Grants & contracts
Total: > £1,000,000 (Studentships, grants, scholarships, commissioned work etc) €5,000 MRes studentship, Phytobiotics GmbH, 2008-2009 £45,750 PhD studentship, Ministry of Higher Education and Scientific Research, Iraq 2010-2013 (Ali Abid) £38,000 Knowledge Transfer Partnership (Ktp) in association with ABAgri, 2010-2011 £2,500 Lallemand Inc, commissioned work, 2010 £62,000 Biomin-PU PhD studentship (50% industry/50% PU) 2011-2014 (Benedict Standen) $48,500 Novus International, ResM studentship 2011-2013 £30,500 ResM studentship, Ministry of Higher Education and Scientific Research, Iraq 2011-2013 (Ibrahim Ibrahim) €10,000 Lallemand Inc, commissioned work, 2011 £1,200 Society for Applied Microbiology, 2011 £54,500 PhD studentship, Ministry of Higher Education and Scientific Research, Iraq 2011-2014 (Rebin Akoy) £6,500 MSc studentship, Lallemand Inc., 2011-2012 $7,500 Novus International, commissioned work, 2011 £28,300 ResM studentship, Ministry of Higher Education and Scientific Research, Iraq 2011-2013 (Payam Sabir) £12,500 IRNC-Lallemand Inc. research project, 2011 €80,000 (Plymouth share €37,500) PhD studentship Portuguese Ministry of Science, Technology and Higher Education, 2012-2015 (Ines Guerrero) $100,000 PhD studentship; LASPAU(COLCIENCIAS)-Lallemand Inc., 2012-2016, (Hugo Alexander Jaramillo Torres)
£10,650 Seale-Hayne Educational Trust, 2012-2013 Publications Peer reviewed publications: 35. Güroy, B., Şahin, I., Kayalı, S., Mantoğlu, S., Canan, B., Merrifield, D. L., Davies, S.J. & Güroy, D. (2012) Evaluation of feed utilization and growth performance of juvenile striped catfish Pangasianodon hypophthalmus fed diets with varying inclusion levels of corn gluten meal. Aquaculture Nutrition accepted 27. Kristiansen, M., Merrifield, D.L., Gonzalez Vecino, J.L, Myklebust, R., & Ringø, E. (2011). Evaluation of prebiotic and probiotic effects on the intestinal gut microbiota and histology of Atlantic salmon (Salmo salar L.) Journal of Aquaculture Research and Development, S1:009. doi:10.4172/2155-9546.S1-009
26. Harper, G.M., Monfort, M., Saoud, I.P., Emery, M., Mustafa, S., Rawling, M., Eynon, B., Davies, S.J., & Merrifield, D.L.* (2011) An ex vivo approach to studying the interactions of probiotic Pediococcus acidilactici and Vibrio (Listonella) anguillarum in the anterior intestine of rainbow trout Oncorhynchus mykiss. Journal of Aquaculture Research and Development, S1:004. doi 10.4172/2155-9546.S1-004
25. Gioacchini, G., Lombardo, F., Merrifield, D.L., Silvi, S., Cresci, A., Avella, M.A., & Carnevali, O. (2011) Effects of Probiotics on Zebrafish Reproduction. Journal of Aquaculture Research and Development, S1:002. doi 10.4172/2155-9546.S1-002 24. Pérez-Sánchez, T, Balcázar, J.L., Merrifield, D. L., Carnevali, O., Gioacchini, G.; de Blas, I., & Ruiz-Zarzuela, I. (2011) Expression of immune-related genes in rainbow trout (Oncorhynchus mykiss) induced by probiotic bacteria during Lactococcus garvieae infection. Fish and Shellfish Immunology. 31, 196-201 23. Hoseinifar, S. H., Mirvaghefi, A., & Merrifield, D. L. (2011) The effects of dietary inactive brewer's yeast Saccharomyces cerevisiae var. ellipsoideus on the growth, physiological responses and gut microbiota of juvenile beluga (Huso huso). Aquaculture. 318, 90-94. 22. Pérez-Sánchez, T, Balcázar, J.L., García, Y., Halaihel , N., Vendrell, D. , de Blas, I., Merrifield, D. L. & Ruiz-Zarzuela I. (2011) Identification and characterization of lactic acid bacteria isolated from rainbow trout Oncorhynchus mykiss (Walbaum) with inhibitory activity against Lactococcus garvieae. Journal Fish Diseases. 34, 499-507.
21. Merrifield, D. L.*, Harper, G., Mustafa, S., Carnevali, O., Picchietti, S., Davies, S. J. (2011) Effect of dietary alginic acid on juvenile tilapia (Oreochromis niloticus) intestinal microbial balance, intestinal histology and growth performance. Cell and Tissue Research. 344, 135-146. 18. Güroy, D., Güroy, B., Merrifield, D. L., Ergün, S., Tekinay, A. & Yiğit, M. (2011) Effect of dietary Ulva and Spirulina on weight loss and body composition of rainbow trout, Oncorhynchus mykiss (Walbaum), during starvation period. Journal of Animal Physiology and Animal Nutrition. 95, 320-327. 16. Dimitroglou, A., Merrifield, D. L.*, Carnevali, O., Picchietti, S., Avella, M., Daniels, C. L., Güroy, D., Davies, S. J. (2011) Microbial manipulations to improve fish health and production - a Mediterranean perspective. Fish and Shellfish Immunology, 30, 1-16. 15. Merrifield, D. L.*, Bradley, G., Harper, G., Baker, R. T. M., Munn, C. B. & Davies, S. J. (2011) Assessment of the effects of vegetative and lyophilised Pediococcus acidilactici on growth, feed utilisation, intestinal colonisation and health parameters of rainbow trout (Oncorhynchus mykiss Walbaum). Aquaculture Nutrition, 17, 73-79
14. Daniels, C. L., Merrifield, D. L, Boothroyd, D. P., Davies, S. J., Factor, J. R. & Arnold, K. E. (2010) Effect of dietary Bacillus spp. and mannan oligosaccharides (MOS) on European lobster (Homarus gammarus L.) larvae growth performance, gut morphology and gut microbiota. Aquaculture, 304, 49-57. 13. Merrifield, D. L.*, Dimitroglou, A., Foey, A., Davies, S. J., Baker, R. T. M., Bøgwald, J., Castex, M. & Ringø, E., (2010) The current status and future focus of probiotic and prebiotic applications for salmonids. Aquaculture, 302, 1-18. 12. Ferguson R. M. W., Merrifield, D. L.*, Harper, G. M., Rawling, M. D., Mustafa, S., Picchietti, S., Balcázar, J. L. &. Davies S. J. (2010) The effect of Pediococcus acidilactici on the gut microbiota and immune status of on-growing red tilapia (Oreochromis niloticus). Journal of Applied Microbiology, 109, 851-862. 11. Merrifield, D. L.*, Davies, S. J., Güroy, D., Güroy, B., Emery, M.J., Llewellyn, C. & Skill, S. (2010) Assessment of Chlorogloeopsis as a dietary supplement for red tilapia (Oreochromis niloticus). Aquaculture, 299, 128-133. 10. Dimitroglou, A., Merrifield, D. L., Spring, P., Sweetman, J., Moate, R. & Davies, S. J., (2010) Effects of dietary mannan oligosaccharides (MOS) and soybean meal on growth performance, feed utilisation, intestinal histology and gut microbiota of gilthead sea bream (Sparus aurata). Aquaculture, 300, 182-188 9. Merrifield, D. L.*, Bradley, G., Baker, R. T. M., Dimitroglou, A. & Davies, S. J. (2010) Probiotic applications for rainbow trout (Oncorhynchus mykiss Walbaum) I. Effects on growth performance, feed utilisation, intestinal microbiota and related health criteria. Aquaculture Nutrition, 16, 504-510. 8. Merrifield, D. L.*, Bradley, G., Baker, R. T. M., & Davies, S. J. (2010) Probiotic applications for rainbow trout (Oncorhynchus mykiss Walbaum) II. Effects on growth performance, feed utilisation, intestinal microbiota and related health criteria post antibiotic treatment. Aquaculture Nutrition, 16, 496-503. 7. Merrifield, D. L.*, Harper, G. M., Dimitroglou, A., Ringø, E. & Davies, S. J. (2010) Possible influence of probiotic adhesion to intestinal mucosa on the activity and morphology of rainbow trout (Oncorhynchus mykiss) enterocytes. Aquaculture Research, 41, 1268-1272. 6. Hoseinifar, S. H., Zare, P. & Merrifield, D. L. (2010) The effects of inulin on growth factors and survival of the Indian white shrimp larvae and post-larvae (Fenneropenaeus indicus). Aquaculture Research, 41, e348-e352. 5. Merrifield, D. L.*, Burnard, D., Bradley, G., Davies S. J. & Baker R. T. M. (2009) Microbial community diversity associated with the intestinal mucosa of farmed rainbow trout (Oncoryhnchus mykiss Walbaum). Aquaculture Research 40, 1064-1072. 4. Merrifield, D. L.*, Bradley, G., Baker, R. T. M., Dimitroglou, A. & Davies, S. J. (2009) Soybean meal alters autochthonous microbial populations, microvilli morphology and compromises intestinal enterocyte integrity of rainbow trout (Oncorhynchus mykiss Walbaum). Journal Fish Diseases 32, 755-766. 3. Rawling, M., Merrifield, D. L. & Davies, S. J. (2009) Preliminary assessment of dietary supplementation of Sangrovit® on red tilapia (Oreochromis niloticus) growth performance and health. Aquaculture 294, 118-122. 2. Dimitroglou, A., Merrifield, D. L., Moate, R., Davies, S.J., Spring, P., Sweetman, J., Bradley, G., (2009) Dietary mannan oligosaccharide supplementation modulates intestinal microbial ecology and improves gut morphology of rainbow trout, Oncorhynchus mykiss (Walbaum).Journal of Animal Science 87, 3226-3234 1. Ergün, S., Soyutürk, M., Güroy, B., Güroy, D. & Merrifield, D. L. (2009) Influence of Ulva meal on growth, feed utilization and body composition of juvenile Nile Tilapia (Oreochromis niloticus) at two levels of dietary lipid. Aquaculture International 17, 355-361.
Probiotics, Prebiotics and Gut Health in Aquaculture Nutrition (Eds. Merrifield D. L. & Ringø E.) Wiley-Blackwell, in prep, contractual agreement for publication in early 2012. Merrifield D. L., Olsen R. E., Myklebust, R. & Ringø E. Dietary effect of soybean products on gut histology and microbiota of fish. Chapter 12, In Soybean and Nutrition ISBN 978-953-307-536-5 (Ed. El-Shemy H.). InTech
6. Merrifield, D. L.* Probiotics and Prebiotics In Aquatic Animals. Global Aquaculture Advocate January/February 2012 pp 42-43
5. Rawling, M. D & Merrifield, D. L. Are immunostimulants the future defence against disease? Asian Aquaculture, The Practical. Vol. 2, Issue 7, July-Sept 2011, pp 12-13. 4. Harper G. M., Dimitroglou A., Ringø E. & Merrifield D. L.* Electron microscopy: an important tool to assess the effects of dietary components on the gastrointestinal tract of fish. Asian Aquaculture, The Practical. Vol. 2, Issue 1, Jan-March 2011, pp 22-24. 3. Merrifield, D. L.* & Emery, M. J. The probiotic approach to elevating the health of fish. International Aquafeed. Vol. 13, Issue 4, July-Aug 2010, pp 36-38.
2. Merrifield, D. L.* & Daniels, C. Improving larval mariculture by ensuring microbial control of live feeds. Asian Aquaculture, The Practical. Vol. 1, Issue 3, July-Sept 2010, pp 12-13. 1. Merrifield, D. L.* Probiotics in aquaculture: transferring scientific knowledge to practical applications. Asian Aquaculture, The Practical. Vol. 1, Issue 2, Apr-Jun 2010, pp 20-22.
Conference and meeting contributions: 22. M. D. Rawling, D. L. Merrifield, D. L. Snellgrove, H. Kühlwein, A. Adams and S. J. Davies (2012) Haemato-immunological and growth response of mirror carp (Cyprinus carpio) fed a tropical earthworm meal in experimental diets. Aquaculture America 2012, Feb 28th-March 3rd, Las Vegas, USA
21. Holger Kühlwein, Christyn J Bailey, Catherine Mead, Matthew J Emery, Simon J Davies, Daniel L Merrifield and Theodore Henry (2012) Effects of dietary β-glucan on zebrafish Danio rerio mycobacteriosis. Aquaculture America 2012, Feb 28th-March 3rd, Las Vegas, USA 19. Giorgia Gioacchini, Elisabetta Giorgini, Daniel L. Merrifield, Gary Hardiman, Andrea Borini, Lisa Vaccari, Oliana Carnevali. Probiotics induce oocyte maturational competence in Danio rerio. Aquaculture Europe 2011, October 19th-21st, Rodos, Greece 18. Handy, R.D., Merrifield, D.L., Shaw, B.J., Harper, G.M., Saoud, I.P., Davies, S.J. & Henry, T.B. 2011. Ingestion of food containing metal nanoparticles disrupts endogenous microbiota in zebrafish with potential implications on organism health. 6th International Conference on the Environmental Effects of Nanoparticles and Nanomaterials, Sept 19th-21st, London, UK. 17. Merrifield*, D. L. 2011 - Gut microbes, feed additives and immunostimulants in fish. Immunostimulants workshop, 15th International Conference on Disease and Shellfish, European Association of Fish Pathologists, Sept 12th-16th, Split, Croatia. Invited Immunostimulants workshop speaker 16. Kuhlwein, H., Merrifield, D.L., Rawling, M.D. & Davies, S.J. 2011. B-glucan effects on growth, haematological indices and intestinal integrity of mirror carp (Cyprinus carpio L.). 15th International Conference on Disease of Fish and shellfish, European Association of Fish Pathologists, Sept 12th-16th, Split, Croatia
14. Merrifield*, D.L. & Davies, S.J. 2011 – Yeast and yeast derivatives in aquafeeds. ABAgri-UoP Ktp workshop, August 25th, Peterborough, UK 13. Merrifield*, D. L. 2011 – Probiotics in aquaculture. 1st Biomin Aquadays 2011, July-12th-15th. Tuln, Austria
12. Merrifield*, D. L. 2011 – Gut microbes, probiotics and prebiotics in fish. World Aquaculture 2011, June 6th-10th, Natal, Brazil 11. Omar, S., Merrifield, D.L., Davies, S.J. & Williams, P. 2011 - Efficacy of a bioethanol refinery derived yeast protein concentrate in aquafeeds. Centre for Research in Translational Biomedicine (CRTB) research day, April 5th, The University of Plymouth, Plymouth, UK. 10. Rawling, M. D., Merrifield, D. L. & Davies, S. J. 2011 - Preliminary assessment of dietary supplementation of Sangrovit® on red tilapia (Oreochromis niloticus) growth performance and health. Centre for Research in Translational Biomedicine (CRTB) research day, April 5th, The University of Plymouth, Plymouth, UK. 9. Kühlwein, H., Merrifield, D. L., Rawling, M. D., & Davies S. J. 2011 - Effects of β-glucan on growth and haematological indices of carp (Cyprinus carpio L.). Centre for Research in Translational Biomedicine (CRTB) research day, April 5th, The University of Plymouth, Plymouth, UK. 8. Merrifield, D. L.*, Ferguson, R. M. W., Harper, G. M., Rawling, M. D., Mustafa, S., Picchietti, S., Balcázar J. L. & Davies S. J. 2010 - The effect of dietary Pediococcus acidilactici (Bactocell®) on tilapia (Oreochromis niloticus). Aquaculture Europe 2010, October 5th -8th, Porto, Portugal. 7. Omar, S., Merrifield, D.L., Davies, S.J. & Williams, P. 2010 - Efficacy of a bioethanol refinery derived yeast protein concentrate in aquafeeds. Aquaculture Europe 2010, October 5th -8th, Porto, Portugal.
6. Sweetman, J. & Merrifield, D. L.* 2010 - Microbial dietary supplements for rainbow trout aquaculture. Aquaculture UK 2010, May 19-20th, Aviemore, Scotland 5. Rawling, M. D., Merrifield, D. L. & Davies, S. J. 2010 - Preliminary assessment of dietary supplementation of Sangrovit® on red tilapia (Oreochromis niloticus) growth performance and health. 11th Fish Immunology Workshop April 12th-15th, Wageningen University, Wageningen, The Netherlands
4. Daniels, C. L., Merrifield, D. L., Davies, S. J. & Boothroyd, D. 2010 - Investigating the application of dietary biotic supplements in Homarid lobster culture. Aquaculture 2010, March 1st-5th, 2010, San Diego, CA, USA 3. Sweetman J. W., Dimitroglou, A., Merrifield, D. L., Moate, R., Davies, S. J., Spring, P. & Bradley, G. 2010 - Dietary mannan oligosaccharide supplementation modulates intestinal microbial ecology and improves gut morphology of rainbow trout Oncorhynchus mykiss. Aquaculture 2010, March 1st-5th, 2010, San Diego, CA, USA
2. Merrifield, D. L.*, Burnard, D., Bradley, G. & Davies, S. J. 2007 - A comparison of the gut microbial populations associated with rainbow trout (Oncorhynchus mykiss) at two fish farms. Aquaculture Europe 2007, October 24th -27th, Istanbul, Turkey.
1. Merrifield, D. L.*, Dimitroglou, A., Bradley, G. & Davies, S. J. 2006 - The effect of partial fishmeal replacement with soya bean on rainbow trout gut microflora: XII International Symposium on Fish Nutrition and Feeding, May 28th – June 1st, 2006, Biarritz, France Reports & invited lectures
Gut microbes, feed additives and immunostimulants in fish. Immunostimulants workshop, 15th International Conference on Disease and Shellfish, European Association of Fish Pathologists, Sept 12th-16th, Split, Croatia
Probiotics in aquaculture. 1st Biomin Aquadays 2011, July-12th-15th. Tuln, Austria World Aquaculture 2011 Invited plenary speaker for the probiotic and prebiotic session. WAS, Natal, Brazil 2011 Probiotics in aquaculture, invited lecture Oct 2008, Canakkale Onsekiz Mart University, Department of Aquaculture, Canakkale, Turkey
Additional information Scopus Young Researchers in Biological Sciences: ranked top 5 nationally 2011 Links Fisheries and Aquaculture Journal |
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