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Faculty of Health and Life Sciences

Professor Jamie Stevens

Professor Jamie Stevens

Professor of Molecular Ecology, Deputy Head of Department, and JICAS (Jersey International Centre for Advanced Studies) Lead

 J.R.Stevens@exeter.ac.uk

 3775

 Hatherly C3A

 

Hatherly Building, University of Exeter, Prince of Wales Road, Exeter, EX4 4PS, UK


Overview

I am an evolutionary biologist with wide ranging interests in molecular ecology, population genetics and evolution.

My reseach focuses on questions in the field of population/conservation genetics, with particular emphasis on applying knowledge of population genetic process to the management and conservation of Atlantic salmon and trout, and a variety of marine organisms.

I teach/lead on modules in fish population genetics, marine connectivity and reef ecology. I also teach the entomological component of a forensic science module.

I am the Deputy Head of Biosciences (Streatham).  Further details on all aspects of my research group can be found at: projects.exeter.ac.uk/meeg.

Qualifications

1987-1991 PhD Parasite Systematics, University of Bristol
1986-1987 MSc Biological Computation, University of York
1980-1984 BSc Applied Biology, Liverpool Polytechnic

Career

2007-present Associate Professor of Molecular Systematics, School of Biosciences, University of Exeter
2004-2007 Reader in Molecular Systematics, School of Biosciences, University of Exeter
2001-2004 Lecturer, School of Biological Sciences, University of Exeter
1998-2001 Wellcome Trust Research Fellow (Biodiversity), School of Biological Sciences, University of Exeter
1996-1998 Research Fellow, Department of Genetics, University of Leicester/School of Biological Sciences, University of Bristol
1993-1996 Research Associate, School of Biological Sciences, University of Bristol
1992-1993 Charge de Recherche, Laboratoire Genetique Moleculaire des Parasites et des Vecteurs, UMR CNRS/ORSTOM 9926, Montpellier, France
1987-1991 Research Assistant, MRC Trypanosomiasis Research Group, Department of Veterinary Medicine, University of Bristol

Assessing marine connectivity in temperate waters using pink sea fans

Links

Research group links

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Research

Research interests

The unifying theme of my research is molecular ecology. Within this subject area, two distinct strands of research are being undertaken: (i) fish population genetics, (ii) parasite systematics and evolution.  See our research group (MEEG) web pages for further information.

Much of our current research focuses on the population genetics of salmon and trout in the rivers of England and Wales, for which we employ a range of population-level molecular techniques including: microsatellite, SNPs and mitochondrial DNA analysis. Current projects aim to evaluate the genetic diversity of trout across southern Britain to inform management practices aimed at conserving these fish in rivers under increasing anthropogenic and environmental pressures.  This work is within the broader framework of a multi-partner European Union funded project: Atlantic Aquatic Resource Conservation (AARC).  We also have ongoing projects focusing on temporal stability in Atlantic salmon and patterns of metal tolerance in trout. The findings of all studies have direct relevance to fish conservation and stock management across Britain and Europe, and benefit from substantial EU and Environment Agency funding.  We are also grateful to the following for financial and logistical support:  The Westcountry Rivers Trust, The Game and Wildlife Conservation Trust and the Atlantic Salmon Trust.

We also contribute to a number of previous EU-funded multi-agency projects on salmonids, including the Atlantic Salmon Arc Project (ASAP, INTERREG IIIB projects 040 + 203) and SALSEA-Merge, an FP7 project, both of which have sought to develop a genetic baseline for salmon in their natal rivers, to facilitate identification and tracking of migrating salmon in the marine environment.  These projects are trans-national and aimed to characterise genetic differences between salmon populations across western European, from Norway to northern Spain. This genetic information is now being used to address one of the remaining uncertainties in salmon ecology, namely at-sea mortality. The identification of distinct populations, and assignment of fish caught by marine fisheries to their river of origin will help identify levels of individual stock exploitation and facilitate improved management of this threatened species.

More recently, research within the group has expanded to undertake studies on genetic connectivity in marine invertebrates.  In partnership with Prof Peter Mumby (University of Queensland/University of Exeter) and others, we have recently published an evaluation of patterns of connectivity in the dominant Caribbean reef-building coral, Montastrea annularis; this uses both empirical data and ocean current modelling. The work has been critical in demonstrating how, while marine connectivity (as measured by gene-flow) is correlated with distance, physical barriers, including oceanic currents and river outflows, can play key roles in shaping both macro and micro (local) patterns of marine connectivity. His group is a partner in the EU FP7 project, Future of Reefs in a Changing Environment (FORCE); Exeter is the lead partner in this project and the laboratory is participating in genetic connectivity analysis. The group has also been contracted by Natural England on a 4-year project to analyse marine connectivity in temperate marine octocoral species.  The aim of this work is to provide genetic data on gene flow to supplement existing data on larval dispersal and oceanographic currents. Together these data will be used to inform decisions on the designation of candidate marine protected areas in UK waters.

Parasitological research within the group continues and includes projects on the evolution of trypanosomes, the causative agents of African Sleeping Sickness and Chagas disease, and other protozoa, and on a range of arthropod ectoparasites, including blowflies, screwworm flies and mites. This research has been supported by the NERC and the IAEA.

Research projects

2008–2011: EU Framework 7 project: SALSEA-Merge – Biodiversity of Atlantic salmon using microsatellite markers and SNiPs: calibration of existing multi-institution data sets for mixed stock analysis of marine salmon fisheries samples and allocation to river of origin. See: www.nasco.int/sas/salsea.htm

2008–2012: Natural England – Molecular Ecology Approaches to Exploring Marine Connectivity: Analysis of Keystone Species within the British Isles.  The project assesses genetic connectivity between two octocoral species groups: seafans (Eunicella) and soft corals (Alcyonium). The broader objectives of the research are to provide data for the basis of management plans for MPA designation and planning.

2010–2012: European Union Atlantic Area INTERREG, Atlantic Aquatic Resource Conservation (AARC) project; Exeter lead partner laboratory for genetic typing (microsatellite analysis).  The Stevens laboratory is developing a database of genetic variability in trout (Salmo trutta) to underpin conservation of river-resident trout and to identify sea trout marine migrations.  The findings of this multi-agency project will inform management policy for trout stocks and mixed-stock fisheries in southern England.

2009–2013: EU Framework 7 project (with Prof P. J. Mumby and a 17 laboratory international consortium): FORCE – Future of Reefs in a Changing Environment: an ecosystem approach to managing Caribbean coral reefs in the face of climate change. The aim of the research is to provide solutions to coral reef management problems. See: www.force-project.eu.

Grants/funding

2008: SALSEA-Merge, European Union Framework 7, Project No: 212529; 1/4/2008 – 31/3/2011: €129,067 = £104,088

2008: GWR, South West Regional Development Agency – Sustainability of Atlantic salmon in southwest rivers; PhD studentship 1/10/2008 – 30/9/2011: £ 55,200

2008: Natural England – Marine Connectivity Project; PhD studentship 1/10/2008 – 31/3/2013: £90,100 

2009: Environment Agency – Genetic characterisation of Atlantic salmon in England and Wales (Wales and Southwest populations); 1/4/2009 – 31/7/2014: £50,000

2009: NERC Standard Grant (with Prof. C. R. Tyler) – Population-level consequences of exposure of fish to oestrogenic wastewater treatment works effluents; 1/11/2009 – 31/10/2012: £353,790

2010: European Union Atlantic Area INTERREG, Atlantic Aquatic Resource Conservation (AARC) project; 01/01/2010 – 31/12/13: € 466,000

2010–1014: EU Framework 7 project (with Prof P. J. Mumby): FORCE – Future of Reefs in a Changing Environment: an ecosystem approach to managing Caribbean coral reefs in the face of climate change 1/1/2010 – 31/5/2014.  Stevens budget : € 22,500

2011–2014: PhD Studentship: Effects of changing climate on Atlantic salmon.  Wildlife & Game Conservation Trust (£30,000) and Westcountry Rivers Trust (£15,000); 1/1/2011 – 31/12/13; total £45,000.

2012: Environment Agency (NW Region) Northwest rivers salmon project; 1/3/2012 – 31/7/2014: £85,000

2013: Southwest Water Exmoor Mires project (studentship) 1/7/13 – 30/9/14: £28,125

2013: NERC Standard Grant (with Prof. C. R. Tyler and Dr D.J. Studholme) – Can roach, Rutilus rutilus, adapt to the harmful effects of oestrogen exposure from waste water treatment work effluents? 21/4/2013 – 20/4/2016: £387,022

Research networks

2001-2003 EU COST Action 833: Mange and myiasis of livestock

2002-2007 Scientific Advisor; International Atomic Energy Agency, Vienna - Coordinated Research Programme: Enabling Technologies for the Expansion of SIT for Old and New World Screwworm.

Research grants

  • 2008 European Union
    A Framework 7 project, typing salmon in their natal rivers to provide a genetic baseline facilitating identification and tracking of migrating salmon in the marine environment.

Links


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External Engagement and Impact

Committee/panel activities

May 2012 - present: Fisheries Research Steering Committee, The Game and Wildlife Conservation Trust.

Member of the NERC Peer Review College.

Advisor to North Atlantic Salmon Conservation Organization

Expert Witness for UK Environment Agency


Editorial responsibilities

2001 - present: Editorial Board member for high profile review-style journal Trends in Parasitology (previously Parasitology Today), Elsevier.

2009 - present: Editorial Board for Medical and Veterinary Entomology (Blackwell). 2011 – present: Editorial Board member for journal Forensic Science International, Elsevier.

April 2000 - present: Editorial Board member for journal Infection, Genetics & Evolution, Elsevier

Nov 2011 – present:        Editorial Board member for journal Forensic Science International, Elsevier.

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Teaching

I am Module coordinator for the Coral Reef Field Course (BIO2081) and Evolution of Infectious Diseases (BIO3066); both modules represent an extension of my research interests into my teaching. I am currently Director of Postgraduate taught Programmes, with overall responsibility for the suite of Masters programmes currently offered in Biosciences.

Modules

2023/24


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Supervision / Group

Postdoctoral researchers

  • Patrick Hamilton (NERC) Determining the effects of estrogenic effluent in rivers on effective population sizes and the genetic diversity of roach (Rutilus rutilus) populations; in collaboration with Prof Charles Tyler (PI) and the Exeter Ecotoxicology group
  • Andy King - Population genetics of brown trout and sea trout (Salmo trutta) in southern Britain; funded by the Aquatic Atlantic Resource Conservation (AARC) project, an EU INTERREG project

Postgraduate researchers

  • Tracy Hamston (Whitley Wildlife Conservation Trust) The evolutionary origins and reproductive ecology of the genus Sorbus (Whitebeams and Rowans) in southwest England
  • Lyndsey Holland (Natural England) The molecular ecology of temperate octocoral species: implications for marine connectivity and MPA designation
  • Charles Ikediashi (Atlantic Salmon Trust, the Game and Wildlife Conservation Trust and the Westcountry Rivers Trust) Assessing the sustainability of Atlantic salmon across the southern part of their European range in the light of climate change and human exploitation
  • Tom Jenkins (NERC GW4 PhD studentship, CASE partner: Natural England. Project: Which taxa: a study of genetic connectivity in temperate marine invertebrates)
  • Emma Kennedy (EU FP7 project Future of Reefs in a Changing Environment (FORCE) climate change and reef health
  • Josephine Paris (Environment Agency and the Westcountry Rivers Trust) Elucidating patterns of metal tolerance in brown trout (Salmo trutta L.): a next-generation sequencing approach
  • Krista Sherman Impacts of Nassau Grouper (Epinephelus striatus) Spawning Aggregation Losses on Reproductive Output & Population Abundances within The Bahamas
  • Kirsten Thompson Biodiversity wildcards: The role of molecular genetics in studying cryptic deep ocean megafauna

Alumni

  • Andrew Bowkett Whitley Wildlife Foundation

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