Dr Tammy Horton

Ocean Biogeochemistry and Ecosystems

I have been employed as a researcher on a variety of deep-sea biodiversity projects at the National Oceanography Centre, Southampton, since 2001. I am also the manager of the Discovery Collections at NOCs – a unique collection of deep-sea samples. My research focus is the taxonomy, biogeography and biodiversity of deep-sea amphipods. As a part of this work I am revising some of the problem genera and species within the Lysianassoidea. As a taxonomist I have a keen interest in the advances in modern methods of taxonomic databasing, interactive web-based keys and digital illustration. I also retain more than a passing interest in fish parasitology and in particular studies of Cymothoid isopods following my PHD, studying the taxonomy, ecology and pathology of cymothoid isopods in both wild and farmed fish.

Committee and Board Memberships: 

I sit on the Steering Committee for the World Register of Marine Species (WoRMS), I am an editor for the Amphipoda and Isopoda (ERMS) and also for the World Register of Deep-Sea Species.

I referee for numerous journals including Deep-Sea Researc



Hejnol, Andreas; Vandepitte, Leen; Vanhoorne, Bart; Decock, Wim; Vranken, Sofie; Lanssens, Thomas; Dekeyzer, Stefanie; Verfaille, Kevin; Horton, Tammy; Kroh, Andreas; Hernandez, Francisco; Mees, Jan. 2018 A decade of the World Register of Marine Species – General insights and experiences from the Data Management Team: Where are we, what have we learned and how can we continue? PLOS ONE, 13 (4). e0194599.https://doi.org/10.1371/journal.pone.0194599
Horton, Tammy; Gofas, Serge; Kroh, Andreas; Poore, Gary C.B.; Read, Geoffrey; Rosenberg, Gary; Stöhr, Sabine; Bailly, Nicolas; Boury-Esnault, Nicole; Brandão, Simone N.; Costello, Mark J.; Decock, Wim; Dekeyzer, Stefanie; Hernandez, Francisco; Mees, Jan; Paulay, Gustav; Vandepitte, Leen; Vanhoorne, Bart; Vranken, Sofie. 2017 Improving nomenclatural consistency: a decade of experience in the World Register of Marine Species. European Journal of Taxonomy (389). 1-24.https://doi.org/10.5852/ejt.2017.389
Amon, Diva J.; Copley, Jonathan T.; Dahlgren, Thomas G.; Horton, Tammy; Kemp, Kirsty M.; Rogers, Alex D.; Glover, Adrian G.. 2017 Observations of fauna attending wood and bone deployments from two seamounts on the Southwest Indian Ridge. Deep Sea Research Part II: Topical Studies in Oceanography, 136. 122-132.10.1016/j.dsr2.2015.07.003
Duffy, Grant A.; Gutteridge, Zoe R.S.; Thurston, Michael H.; Horton, Tammy. 2016 A comparative analysis of canyon and non-canyon populations of the deep-sea scavenging amphipod Paralicella caperesca. Journal of the Marine Biological Association of the United Kingdom, 96 (8). 1687-1699.10.1017/S0025315415002064
McClain, Craig R.; Barry, James P.; Eernisse, Douglas; Horton, Tammy; Judge, Jenna; Kakui, Keiichi; Mah, Christopher L.; Warén, Anders. 2016 Multiple processes generate productivity–diversity relationships in experimental wood-fall communities. Ecology, 97 (4). 885-898.10.1890/15-1669.1
Durden, Jennifer M.; Bett, Brian J.; Horton, Tammy; Serpell-Stevens, Amanda; Morris, Kirsty J.; Billett, David S.M.; Ruhl, Henry A.. 2016 Improving the estimation of deep-sea megabenthos biomass: dimension to wet weight conversions for abyssal invertebrates. Marine Ecology Progress Series, 552. 71-79.10.3354/meps11769
Horton, Tammy; Blazewicz-Paszkowycz, Magdelena; Staples, David A.; Bird, Graham J.. 2015 A collection of taxonomic studies commemorating Roger N. Bamber 1949-2015). Foreword. Zootaxa, 3995 (1). 5-19.10.11646/zootaxa.3995.1.3
Bellini, Nicola; Cox, Martin J.; Harper, Danielle J.; Stott, Sebastian R.; Ashok, Praveen C.; Dholakia, Kishan; Kawaguchi, So; King, Robert; Horton, Tammy; Brown, Christian T. A.. 2014 The Application of Optical Coherence Tomography to Image Subsurface Tissue Structure of Antarctic Krill Euphausia superba. PLoS ONE, 9 (10). e110367.10.1371/journal.pone.0110367
Corrigan, Laura J.; Horton, Tammy; Fotherby, Heather; White, Thomas A.; Hoelzel, A. Rus. 2014 Adaptive Evolution of Deep-Sea Amphipods from the Superfamily Lysiassanoidea in the North Atlantic. Evolutionary Biology, 41 (1). 154-165.10.1007/s11692-013-9255-2
Horton, Tammy; Thurston, Michael. 2013 Hirondellea namarensis (Crustacea: Amphipoda: Lysianassoidea: Hirondelleidae), a new deep-water scavenger species from the Mid-Atlantic Ridge [in special issue: Benthos of the Sub-Polar Front Area on the Mid-Atlantic Ridge: Results of the ECOMAR Project] Marine Biology Research, 9 (5-6). 554-562.10.1080/17451000.2012.749994
Priede, Imants G.; Bergstad, Odd Aksel; Miller, Peter I.; Vecchione, Michael; Gebruk, Andrey; Falkenhaug, Tone; Billett, David S.M.; Craig, Jessica; Dale, Andrew C.; Shields, Mark A.; Tilstone, Gavin H.; Sutton, Tracey T.; Gooday, Andrew J.; Inall, Mark E.; Jones, Daniel O.B.; Martinez-Vicente, Victor; Menezes, Gui M.; Niedzielski, Tomasz; Sigurðsson, Þorsteinn; Rothe, Nina; Rogacheva, Antonina; Alt, Claudia H. S.; Brand, Timothy; Abell, Richard; Brierley, Andrew S.; Cousins, Nicola J.; Crockard, Deborah; Hoelzel, A. Rus; Høines, Åge; Letessier, Tom B.; Read, Jane F.; Shimmield, Tracy; Cox, Martin J.; Galbraith, John K.; Gordon, John D. M.; Horton, Tammy; Neat, Francis; Lorance, Pascal. 2013 Does Presence of a Mid-Ocean Ridge Enhance Biomass and Biodiversity? PLoS ONE, 8 (5). e61550.10.1371/journal.pone.0061550
Horton, Tammy; Thurston, Michael H.; Duffy, Grant A.. 2013 Community composition of scavenging amphipods at bathyal depths on the Mid-Atlantic Ridge. Deep Sea Research Part II: Topical Studies in Oceanography, 98. 352-359.10.1016/j.dsr2.2013.01.032
Duffy, Grant A.; Horton, Tammy; Sheader, Martin; Thurston, Michael H.. 2013 Population structure of Abyssorchomene abyssorum () (Amphipoda: Lysianassoidea), a scavenging amphipod from the Mid-Atlantic Ridge in the vicinity of the Charlie-Gibbs Fracture Zone. Deep Sea Research Part II: Topical Studies in Oceanography, 98. 360-369.10.1016/j.dsr2.2013.02.004
Duffy, G.A.; Horton, T.; Billett, D.S.M.. 2012 Deep-sea scavenging amphipod assemblages from the submarine canyons of the Western Iberian Peninsula. Biogeosciences, 9. 4861-4869.10.5194/bg-9-4861-2012 (Unpublished)
Jamieson, A.J.; Kilgallen, N.M.; Rowden, A.A.; Fujii, T.; Horton, T.; Lörz, A.-N.; Kitazawa, K.; Priede, I.G.. 2011 Bait-attending fauna of the Kermadec Trench, SW Pacific Ocean: Evidence for an ecotone across the abyssal–hadal transition zone. Deep Sea Research Part I: Oceanographic Research Papers, 58 (1). 49-62.10.1016/j.dsr.2010.11.003
Horton, Tammy. 2008 Amphipoda from marine caves of Hong Kong Island. Journal of Natural History, 42 (9). 825-854.10.1080/00222930701860124
Ketmaier, V.; Joyce, D.A.; Horton, T.; Mariani, S.. 2008 A molecular phylogenetic framework for the evolution of parasitic strategies in cymothoid isopods (Crustacea). Journal of Zoological Systematics and Evolutionary Research, 46 (1). 19-23.10.1111/j.1439-0469.2007.00423.x
Beaumont, N.J.; Austen, M.C.; Atkins, J.P.; Burdon, D.; Degraer, S.; Dentinho, T.P.; Derous, S.; Holm, P.; Horton, T.; Van Ierland, E.; Marboe, A.H.; Starkey, D.J.; Townsend, M.; Zarzycki, T.. 2007 Identification, definition and quantification of goods and services provided by marine biodiversity: Implications for the ecosystem approach. Marine Pollution Bulletin, 54 (3). 253-265.10.1016/j.marpolbul.2006.12.003
Horton, T.; Baker, M.. 2007 The Deep Sea on your doorstep. Marine Conservation, 7 (7). 17-20.
Horton, T.; Bett, B.; Baker, M.. 2006 UK Deep-Sea Research from History to Modern Day. Porcupine Marine Natural History Society Newsletter (21). 23-28.
Horton, T.; Diamant, A.; Galil, B.S.. 2004 Ceratothoa steindachneri (Isopoda, Cymothoidae): an unusual record from the Mediterranean. Crustaceana, 77 (9). 1145-1148.10.1163/1568540042900231
Horton, T.; Okamura, B.. 2002 The distribution of Ceratothoa steindachneri (Crustacea: Isopoda: Cymothoidae) parasitic in Echiichthys vipera in the north-east Atlantic. Journal of the Marine Biological Association of the United Kingdom, 82 (3). 415-417.
Horton, T.. 2000 Ceratothoa steindachneri (Isopoda: Cymothoidae) new to British waters with a key to north-east Atlantic and Mediterranean Ceratothoa. Journal of the Marine Biological Association of the United Kingdom, 80. 1041-1052.


Horton, Tammy. 2013 BP Sample Voucher Collections: Guidance for Consultants. London, BP, 18pp. (UNSPECIFIED) (Unpublished)

Book section

Baker, M.; Bett, B.; Horton, T.. 2006 DC-UK: deep-sea conservation for the UK. In: Charlesworth, M.E., (ed.)Marine and coastal photographs and videos : their availability, uses and curation: report for the Marine Environmental Data Action Group of the Inter-Agency Committee on Marine Science and Technology (IACMST). Southampton, Inter-Agency Committee on Marine Science and Technology (IACMST), p37, 43pp. (IACMST Information Document 13).


Horton, T.. 2001 Genus Ceratothoa in wild and farmed fish: Taxonomy, Ecology and Pathology. University of Reading, School of Animal Microbial Sciences, PhD Thesis, 161pp.

Electronic output

Horton, Tammy; Glover, Adrian; Higgs, Nicolas. Deep-sea ID app. https://itunes.apple.com/us/app/deep-sea-id/id615240268 [Output (Electronic)]
Horton, Tammy; Lowry, Jim; De Broyer, Claude. World Amphipoda Database. http://www.marinespecies.org/amphipoda/ [Output (Electronic)]
Horton, Tammy; Glover, Adrian; Higgs, Nicolas. World Register of Deep-Sea Species. http://www.marinespecies.org/deepsea/ [Output (Electronic)]