Dr Samantha Garrard

Dr Samantha Garrard

Research Fellow

School of Biological and Marine Sciences (Faculty of Science and Engineering)



My current research focuses on understanding how environmentally relevant microplastics will impact on marine organisms, communities and ecosystem functioning.

2020 – 2022 Daphne Jackson Research Fellow, University of Plymouth

2019 – 2020 Research Assistant, Marine Biological Association

2014 – 2019 Career break to look after my children

2013 – 2014 Marine Ecosystem Services Researcher, Plymouth Marine Laboratory


2010 – 2013 PhD in Marine Ecology, Open University based at the Stazione Zoologica Anton Dohrn, Italy

2009 – 2010 MSc Aquatic Resource Management (Distinction), Kings College London, UK

2004 – 2007 BSc (Hons) Marine Biology (1st class), University of Plymouth, UK



Research interests

My interests are primarily focused on understanding the impact of anthropogenic and climate change stressors on marine organisms, their communities, and how these impacts will lead to changes in ecosystem functioning and the ecosystem services that these functions provide.




Scartazza A, Moscatello S, Gavrichkova O, Buia MC, Lauteri M, Battistelli A, Lorenti M, Garrard SL, Calfapietra C, Brugnoli E (2017) Carbon and nitrogen allocation strategy in Posidonia oceanica is altered by seawater acidification. Science of the Total Environment, 607-608: 954-964

Böhnke-Henrichs A, Börger T, Burdon D, Hadjimichael M, Delaney A, Atkins JP, Garrard SL, Austen MC (2015) Integrating methods for ecosystem service assessment and valuation: Mixed methods or mixed messages? Ecological Economics, 120: 126-138

Garrard SL and Beaumont NJ (2014) The effect of ocean acidification on carbon storage and sequestration in seagrass beds; a global and UK context. Marine Pollution Bulletin. 86(1-2): 138-146

Garrard SL, Gambi MC, Scipione MB, Patti FP, Lorenti M, Zupo V, Paterson DM and Buia MC (2014) Indirect effects may buffer negative responses of seagrass invertebrate communities to ocean acidification. Journal of Experimental Marine Biology and Ecology, 461; 31-38.

Porzio L, Garrard SL, Buia MC (2013) The effect of ocean acidification on early algal colonization stages at natural CO2 vents. Marine Biology 160 (8): 2247-2259

Garrard SL, Hunter RC, Frommel AY, Lane AC, Phillips JC, Cooper R, Dineshram R, Cardini U, McCoy SJ, M. A, Rodrigues Alves BG, Annane S, de Orte MR, Kumar A, Aguirre-Martínez GV, Maneja RH, Basallote MD, Ape F, Torstensson A, Bjoerk MM (2012) Biological impacts of ocean acidification: a postgraduate perspective on research priorities. Marine Biology 160 (8): 1789-1805

Unsworth RKF, Garrard SL, Salinas de Leon P, Sloman KA, Smith DJ, Bell JJ (2009) Structuring of Indo-Pacific fish assemblages along the seagrass-mangrove continuum. Aquatic Biology 5: 85-95

Unsworth RKF, Salinas De Leon P, Garrard SL, Jompa J, Smith DJ, Bell JJ, (2008) High connectivity of Indo-Pacific seagrass fish assemblages with mangrove and coral reef habitats. Marine Ecology Progress Series 353: 213–244

Unsworth RKF, Salinas De Leon P, Garrard SL, Smith DJ, Bell JJ (2008) Habitat usage of Lethrinus harak (Forrskål 1775) in an Indo-Pacific coastal seascape. The Open Journal of Marine Biology 2: 59-63


Austen MC, Hattam C & Garrard SL (2014) Chapter 11. Impacts of human activities on ecosystem services. In: Marine ecosystems: human impacts on biodiversity, functioning and services (Crow T, Frid C & Austen MC Eds.) Cambridge University Press. Cambridge, UK.