Professor Shelagh Malham
Professor in Marine Biology

Affiliations
Contact info
Room: Marine Centre Wales Phone:01248 383252
E-Mail:S.Malham@bangor.ac.uk
I am a Professor in Marine Biology in the School of Ocean Sciences. I completed my BSc (Jt. Hons. Marine Biology and Zoology) and PhD in Octopus immunology at Bangor University. Following a Marie Curie fellowship (on oyster immune function) in Centre National de la Recherche Scientifique (CNRS) station in Roscoff, France and a Return Marie Curie (immunology and genetics of oysters) I was made a Research Lecturer in 2007 and a Senior Research Fellow in 2015. I have been successful in obtaining a number of research council, EU and commercial funding.
My primary research is on environmental impacts on shellfish. This covers four main themes: i) Understanding the current ecological processes and functions which govern shellfish health, ii) Studying the impact of climate change on the abundance, distribution and health of shellfish, iii) Quantifying the terrestrial sources and impacts of pollutants and pathogens on shellfish, iv) As a cross-cutting theme running across these areas of science, my research seeks to understand the cascading effects of these drivers of change on the aquaculture industry, and the wider societal impacts on the ecosystem services that shellfish underpin.
My research is often applied science, driven by industry questions. When combined with novel scientific techniques and taking a holistic, multidisciplinary approach, this produces both cutting-edge science and research impact, with direct benefits to stakeholders as well as the research community.
Research Areas
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Stress and stress-induced neuroendocrine changes increase the susceptibility of juvenile oysters (Crassostrea gigas) to Vibrio splendidus.
Lacoste, A., Jalabert, F., Malham, S. K., Cueff, A. & Poulet, S. A., 1 May 2001, In: Applied and Environmental Microbiology. 67, 5, p. 2304-2309Research output: Contribution to journal › Article › peer-review
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Stress-induced catecholamine changes in the hemolymph of the oyster Crassostrea gigas.
Lacoste, A., Malham, S. K., Cueff, A. & Poulet, S. A., 1 May 2001, In: General and Comparative Endocrinology. 122, 2, p. 181-188Research output: Contribution to journal › Article › peer-review
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Evidence for a form of adrenergic response to stress in the oyster Crassostrea giga.
Lacoste, A., Malham, S. K., Cueff, A., Jalabert, F., Gelebart, F. & Poulet, S. A., 1 Apr 2001, In: Journal of Experimental Biology. 204, 7, p. 1247-1255Research output: Contribution to journal › Article › peer-review
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Noradrenaline modulates hemocyte reactive oxygen species production via beta–adrenergic receptors in the oyster Crassostrea gigas.
Lacoste, A., Malham, S. K., Cueff, A. & Poulet, S. A., 1 May 2001, In: Developmental and Comparative Immunology. 25, 4, p. 285-289Research output: Contribution to journal › Article › peer-review
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Stress-induced immune changes in the oyster Crassostrea gigas.
Lacoste, A., Malham, S. K., Gelebart, F., Cueff, A. & Poulet, S. A., 1 Jan 2002, In: Developmental and Comparative Immunology. 26, 1, p. 1-9Research output: Contribution to journal › Article › peer-review
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Noradrenaline modulates oyster hemocyte phagocytosis via a beta-adrenergic receptor-cAMP signaling pathway
Lacoste, A., Malham, S. K., Cueff, A. & Poulet, S. A., 1 Jun 2001, In: General and Comparative Endocrinology. 122, 3, p. 252-259Research output: Contribution to journal › Article › peer-review
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Predicting potential spawning areas of European bass, Dicentrarchus labrax, in the Irish and Celtic Seas
Lincoln, H., Robins, P., Wilmes, S.-B., Pérez-Mayol, S., Moore, A., Simpson, S., Goward Brown, A., Heney, C., Malham, S., Morales-Nin, B., Hold, N. & McCarthy, I., 1 Feb 2024, In: Fisheries Research. 270, 106884.Research output: Contribution to journal › Article › peer-review
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The health status of mussels, Mytilus spp., in Ireland and Wales with the molecular identification of a previously undescribed haplosporidian
Lynch, S. A., Morgan, E., Carlsson, J., Mackenzie, C., Wooton, E. C., Malham, S. K. & Culloty, S. C., 6 Mar 2014, In: Journal of Invertebrate Pathology. 118, p. 59-65Research output: Contribution to journal › Article › peer-review
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Future oceanic warming and acidification alter immune response and disease status in a commercial shellfish species, Mytilus edulis L.
Mackenzie, C., Lynch, S. A., Culloty, S. C. & Malham, S. K., 13 Jun 2014, In: PLoS ONE. 9, 6Research output: Contribution to journal › Article › peer-review
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Ocean Warming, More than Acidification, Reduces Shell Strength in a Commercial Shellfish Species during Food Limitation
Mackenzie, C. L., Ormondroyd, G. A., Curling, S. F., Ball, R. J., Whiteley, N. M. & Malham, S. K., 28 Jan 2014, In: PLoS ONE. 9, 1, p. e86764Research output: Contribution to journal › Article › peer-review
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Effects of climate change on biomineralization in a commercial shellfish species, Mytilus edulis L.
Mackenzie, C. L., Ormondroyd, G. A., Curling, S. F., Ball, R. J., Whiteley, N. M. & Malham, S. K., 13 Mar 2013.Research output: Contribution to conference › Paper
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Future socio-economic and environmental sustainability of the Irish Sea requires a multi-disciplinary approach with industry and research collaboration, and cross-border partnership
Mackenzie, C. L., Bell, M. C., Birchenough, S. N., Culloty, S. C., Sanderson, W. G., Whiteley, N. M. & Malham, S. K., 1 Dec 2013, In: Ocean and Coastal Management. 85, Part A, p. 1-6Research output: Contribution to journal › Article › peer-review
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Multi-scale influences on Escherichia coli concentrations in shellfish: From catchment to estuary
Malham, S., Taft, H., Farkas, K., Ladd, C., Seymour, M., Robins, P., Jones, D. L., McDonald, J., Le Vay, L. & Jones, L., 1 Feb 2025, In: Environmental Pollution. 125476.Research output: Contribution to journal › Article › peer-review
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Testing the response of oysters exposed to chemicals X, Y, and Z
Malham, S. K., Walton, M. W., Latchford, J. W., King, J. W. & Greenwell, H. C., 1 Jan 2006, 2006 ed. Centre for Applied Marine Sciences.Research output: Book/Report › Commissioned report
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The interaction of human microbial pathogens, particulate material and nutrients in estuarine environments and their impacts on recreational and shellfish waters
Malham, S. K., Rajko-Nenow, P., Howlett, E., Tuson, K. E., Perkins, T. L., Pallett, D. W., Wang, H., Jago, C. F., Jones, D. L. & McDonald, J. E., 7 Jul 2014, In: Environmental Science: Processes and Impacts. 16, p. 2145-2155Research output: Contribution to journal › Article › peer-review
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Seasonal and spatial dynamics of enteric viruses in wastewater and in riverine and estuarine receiving waters
Malham, S., Farkas, K., McDonald, J., Jones, D. L., Cooper, D. & de Rougemont, A., 1 Sept 2018, In: Science of the Total Environment. 634, p. 1174 1183 p.Research output: Contribution to journal › Article › peer-review
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Summer mortality of the Pacific oyster, Crassostrea gigas, in the Irish Sea: The influence of temperature and nutrients on health and survival.
Malham, S., Cotter, E., O'Keeffe, S., Lynch, S., Culloty, S. C., King, J. W., Latchford, J. W. & Beaumont, A., 1 Feb 2009, In: Aquaculture. 287, 1-2, p. 128-138Research output: Contribution to journal › Article › peer-review
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Spatial and temporal heterogeneity of bacteria across an intertidal shellfish bed: Implications for regulatory monitoring of faecal indicator organisms
Malham, S., Clements, K., Quilliam, R. S., Jones, D. L., Wilson, J. & Malham, S. K., 14 Nov 2014, In: Science of the Total Environment. 506, p. 1-9Research output: Contribution to journal › Article › peer-review
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Validation of the flooding dose technique to determine fractional rates of protein synthesis in a model bivalve species, the blue mussel (Mytilus edulis L.)
McCarthy, I. D., Nicholls, R., Malham, S. K. & Whiteley, N. M., 23 Oct 2015, In: Comparative Biochemistry and Physiology Part A: Molecular and Integrative Physiology. 191, p. 166-173Research output: Contribution to journal › Article › peer-review
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Decay rates of faecal indicator bacteria from sewage and ovine faeces in brackish and freshwater microcosms with contrasting suspended particulate matter concentrations
Perkins, T. L., Perrow, K. A., Rajko-Nenow, P., Jago, C. F., Jones, D. L., Malham, S. K. & McDonald, J. E., 1 Dec 2016, In: Science of the Total Environment. 572, p. 1645-1652Research output: Contribution to journal › Article › peer-review
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Sediment Composition Influences Spatial Variation in the Abundance of Human Pathogen Indicator Bacteria within an Estuarine Environment
Perkins, T. L., Clements, K., Baas, J. H., Jago, C. F., Jones, D. L., Malham, S. K. & McDonald, J. E., 14 Nov 2014, In: PLoS ONE. 9, 11Research output: Contribution to journal › Article › peer-review
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Fishing for Cephalopods
Pierce, G., Valavanis, V., Pereira, J., Santurtun, M., Robin, J. P. & Malham, S. K., 1 Jan 2006, In: ICES CIEM Newsletter. 43, p. 13-15Research output: Contribution to journal › Article › peer-review
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Spatial variation of waterborne Escherichia coli - implications for routine water quality monitoring
Quilliam, R. S., Clements, K., Duce, C. E., Cottrill, S. B., Malham, S. K. & Jones, D. L., 1 Dec 2011, In: Journal of Water and Health. 9, 4, p. 734-737Research output: Contribution to journal › Article › peer-review
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Unearthing human pathogens at the agricultural–environment interface: A review of current methods for the detection of Escherichia coli O157 in freshwater ecosystems
Quilliam, R. S., Williams, A. P., Avery, L. M., Malham, S. & Jones, D. L., 1 Mar 2011, In: Agriculture, Ecosystems and Environment. 140, 3-4, p. 354-360Research output: Contribution to journal › Article › peer-review
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Viral dispersal in the coastal zone: A method to quantify water quality risk
Robins, P., Farkas, K., Jones, D. L., Cooper, D. & Malham, S., May 2019, In: Environment International. 126, p. 430-442Research output: Contribution to journal › Article › peer-review
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Physical and biological controls on larval dispersal and connectivity in a highly energetic shelf sea
Robins, P. E., Neill, S. P., Gimenez, L., Jenkins, S. R. & Malham, S. K., 1 Mar 2013, In: Limnology and Oceanography. 58, 2, p. 505-524Research output: Contribution to journal › Article › peer-review
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Future variability of solute transport in a macrotidal estuary
Robins, P. E., Lewis, M. J., Simpson, J. H., Howlett, E. R. & Malham, S. K., 13 Oct 2014, In: Estuarine, Coastal and Shelf Science. 151, p. 88-99Research output: Contribution to journal › Article › peer-review
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The potential impact of climate change on the infectious diseases of commercially important shellfish populations in the Irish Sea—a review
Robins, P. E., Malham, S., Rowley, A. F., Cross, M. E., Culloty, S. C., Lynch, S. A., Mackenzie, C. L., Morgan, E., O'Riordan, R. M., Robbins, P. E., Smith, A. L., Thrupp, T. J., Vogan, C. L., Wootton, E. C. & Malham, S. K., 1 May 2014, In: ICES Journal of Marine Science. 71, 4, p. 741-759Research output: Contribution to journal › Article › peer-review
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Predicting the dispersal of SARS-CoV-2 RNA from the wastewater treatment plant to the coast
Robins, P., Dickson, N., Kevill, J., Malham, S., Singer, A., Quilliam, R. & Jones, D. L., Sept 2022, In: Heliyon. 8, 9, E10547.Research output: Contribution to journal › Article › peer-review
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Impact of climate change on UK estuaries: A review of past trends and potential projections
Robins, P. E., Skov, M. W., Lewis, M. J., Gimenez, L., Davies, A. G., Malham, S. K., Neill, S. P., McDonald, J. E., Whitton, T. A., Jackson, S. E. & Jago, C. F., 17 Dec 2015, In: Estuarine, Coastal and Shelf Science. 169, p. 119-135Research output: Contribution to journal › Article › peer-review
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E. coli Is a Poor End-Product Criterion for Assessing the General Microbial Risk Posed From Consuming Norovirus Contaminated Shellfish
Sharp, J. H., Clements, K., Diggens, M., McDonald, J. E., Malham, S. K. & Jones, D. L., 19 Feb 2021, In: Frontiers in Microbiology. 12, p. 608888Research output: Contribution to journal › Article › peer-review
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Morphological vs. molecular identification of trematode species infecting the edible cockle Cerastoderma edule across Europe
Stout, L., Daffe, G., Chambouvet, A., Correia, S., Culloty, S., Freitas, R., Iglesias, D., Jensen, K. T., Joaquim, S., Lynch, S., Magalhães, L., Mahony, K., Malham, S. K., Matias, D., Rocroy, M., Thieltges, D. W. & de Montaudouin, X., Dec 2024, In: International Journal for Parasitology: Parasites and Wildlife. 25, 101019.Research output: Contribution to journal › Article › peer-review
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Grazing intensity is a poor indicator of waterborne Escherichia coli O157 activity
Thorn, C. E., Quilliam, R., Williams, P., Malham, S., Cooper, D. M., Jones, D. L. & Reynolds, B., 1 Dec 2011, In: Anaerobe. 17, 6Research output: Contribution to journal › Article › peer-review
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A global review of the ecosystem services provided by bivalve aquaculture: Services of bivalve aquaculture
Van Der Schatte Olivier, A., Jones, L., Le Vay, L., Christie, M., Wilson, J. & Malham, S., Feb 2020, In: Reviews in Aquaculture. 12, 1, p. 3-25 23 p., doi: 10.1111/raq.12301.Research output: Contribution to journal › Review article › peer-review
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Genomic survey of edible cockle (Cerastoderma edule) in the Northeast Atlantic: a baseline for sustainable management of its wild resources.
Vera, M., Maroso, F., Wilmes, S.-B., Malham, S., Groves, E., Hermida, M., Blanco, A., Fernandez, C., Bouza, C., Martinez, P. & Robins, P., 24 Feb 2022, In: Evolutionary Applications. 15, 2, p. 262-285 24 p.Research output: Contribution to journal › Article › peer-review
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Heterogeneous microgeographic genetic structure of the common cockle (Cerastoderma edule) in the Northeast Atlantic Ocean: biogeographic barriers and environmental factors
Vera, M., Wilmes, S.-B., Maroso, F., Hermida, M., Blanco, A., Casanova, A., Iglesias, D., Cao, A., Culloty, S. C., Mahony, K., Orvain, F., Bouza, C., Robins, P., Malham, S., Lynch, S., Antonio, V. & Martínez, P., Oct 2023, In: Heredity. 131, 4, p. 292-305Research output: Contribution to journal › Article › peer-review
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Kelp detritus: Unutilized productivity or an unacknowledged trophic resource?
Walton, M., R, B., Griffiths, J., Cartwright, D., Robins, P., Malham, S. & Le Vay, L., 10 May 2022, In: Science of the Total Environment. 820, 153191.Research output: Contribution to journal › Article › peer-review
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Use of Mytilus edulis biosentinels to investigate spatial patterns of norovirus and faecal indicator organism contamination around coastal sewage discharges
Winterbourn, J., Clements, K., Lowther, J. A., Malham, S., McDonald, J. & Jones, D., 15 Nov 2016, In: Water Research. 105, November, p. 241-250Research output: Contribution to journal › Article › peer-review
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Evaluation of spatial contamination patterns for norovirus and faecal indicator bacteria near to a coastal sewage discharge using Mytilus edulis as biosentinels
Winterbourn, J. B., Clements, K., Malham, S., McDonald, J. & Jones, D. L., Jan 2013, 92 McLeod et al (eds.). Proc. 9th Int. Conf. Molluscan Shellfish Safety . p. 89-92Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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Geographical variation in the carbon, nitrogen, and phosphorus content of blue mussels, Mytilus edulis
van der Schatte Olivier, A., Le Vay, L., Malham, S. K., Christie, M., Wilson, J., Allender, S., Schmidlin, S., Brewin, J. M. & Jones, L., Jun 2021, In: Marine pollution bulletin. 167, 112291.Research output: Contribution to journal › Article › peer-review
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Ten priority questions for increasing the consistency and success in hatchery production of the European flat oyster for habitat restoration
zu Ermgassen, S. O. S. E., Albentosa, M., Bakker, N., Blanco, A., Bonacic, K., Carboni, S., Brundu, G., Colsoul, B., Pineiro, N. A., da Costa, F., Dubbeldam, M., Fabra, M., Galley, T., Gowland, D., Jones, N., Hernandez, A., Hernandis, S., Laugen, A. T., Magnesen, T., Malham, S., Pogoda, B., Preston, J., Sas, H., Saurel, C., Barja, J. L. & Kamermans, P., 20 Oct 2023, In: Aquatic Living Resources. 36, 10 p., 29.Research output: Contribution to journal › Article › peer-review