Accessibility statement

Bryce Beukers-Stewart



Bryce is a marine ecologist and fisheries biologist whose work has ranged from temperate estuaries to tropical coral reefs and the deep-sea. The central thread in his research has been to gain an increased understanding of the factors regulating marine populations and communities so as to ensure their sustainable utilisation. His work on deep-sea fishes was among the first to demonstrate their extreme longevity, and on coral reefs he provided new evidence for mechanisms of community regulation of prey fish by predators. More recently his focus has been on how to improve the management of fisheries through the use of predictive recruitment models, marine protected areas and stock enhancement. Bryce has also been especially active in promoting the sale and consumption of sustainable seafood by working with everyone from government ministers to fishermen, restaurants and supermarket chains. Since 2016 he has been particularly involved with assessing the effects of Brexit on UK fisheries and the marine environment, and helping to plan for future reform of management by working with a wide range of stakeholders and the Government.


Lecturer Department of Environment and Geography, University of York, UK
PhD James Cook University, QLD, AUS
BSc University of Melbourne, VIC, AUS

Departmental roles

Deputy Chair of the Department of Environment and Geography, Board of Studies

Exceptional Circumstances Committee, Department of Environment and Geography

Standing Academic Misconduct Panel, Department of Environment and Geography

Co-leader of the Archaeology, Biology, Chemistry and Environment Programme - School of Natural Sciences



Bryce's research is currently focussed on three main themes:


Management of Marine Fisheries and Ecosystems

For the past 15 years Bryce has been conducting research on the biology, impacts and management of scallop fisheries. A particular focus has been on examining the utility of Marine Protected Areas (MPAs) for providing breeding refuges for scallops and mitigating the environmental effects of scallop fishing gear. This work has had considerable influence on fisheries management policies in the United Kingdom. More recently his interest in fisheries management has been expanded to examine the use of MPAs for other species, and how to reduce discards and by-catch in finfish fisheries.

Recent Publicity

** Article in the Marine Conservation Society magazine Reviving the Clyde (PDF , 8,562kb)

** University of York feature "Making waves: the science behind a Scottish fishing revolution"

** Article in the Conversation "Arran reserve reveals marine protection works"

** Documentary about how to better manage fisheries, featuring our research "Troubled Waters"

** Our own short video "Sealing the Deal for Lamlash Bay Marine Reserve"

** Article in the Conversation "Fisheries discard ban can benefit fish and fisheries"


The Effects of Environmental Change on Aquatic Ecosystems

Recent research has revealed that scallop populations are currently being benefited by climate change. However, effects further into the future and on the benthic community in general are likely to be more complicated. Bryce is currently examining long-term datasets in collaboration with his research students to explore these concepts. An interesting angle to consider in the future will be the effect of ocean acidification on marine invertebrate communities. Recently Bryce took his work in a new direction by exploring how climate change is affecting aquatic life in Russia's Lake Baikal, the largest freshwater lake on Earth

** Article in the Ecologist "New dams, warming waters, forest fires - Lake Baikal in peril"


The Effectiveness of the Sustainable Seafood Movement

During his time at the Marine Conservation Society and also as a private consultant, Bryce became extensively involved in the promotion and assessment of “sustainable” seafood. He is now involved in examining awareness of sustainable seafood among consumers, retailers and chefs. He is also exploring evidence for the effects of the sustainable seafood movement on the management of fisheries.

** Check out our report on celebrity chefs and sustainable seafood Celebrity chefs and sustainable seafood (PDF , 873kb)

Research group(s)

Ecosystems and Society Research Cluster, Environment Department, University of York


2015 COAST £2250, BD Stewart Isle of Arran crustacean survey
2014 Pump priming grant, University of York £750, BD Stewart ICES scallop working group 
2014 COAST £2500, BD Stewart Isle of Arran crustacean survey
2014 SIFT £2000, BD Stewart and LM Howarth Ecosystem effects of scallop dredging
2013 Santander £1000, BD Beukers-Stewart International Connections Award (19th International Pectinid Workshop, Florianopolis, Brazil)
2013 - 2014 Flora and Fauna International £16,770, CM Roberts, JP Hawkins and BD Beukers-Stewart Conservation of the Firth of Clyde, Scotland
2012 COAST £5215, BD Beukers-Stewart and LM Howarth Isle of Arran crustacean and scallop survey
2011-2013 Flora and Fauna International £182,000, CM Roberts, JP Hawkins and BD Beukers-Stewart Conservation of the Firth of Clyde, Scotland
2008-2009 NE, CCW & SNH £4100, BD Beukers-Stewart and JS Beukers-Stewart Principles for the management of inshore scallop fisheries around the United Kingdom
2008-2011 NERC PhD Studentship £68,543, BD Beukers-Stewart and RL Brown Untangling the effect of fishing and environmental change on marine benthic communities
2007-2008 Pump priming grant, University of York £900, BD Beukers-Stewart Untangling the effect of fishing and environmental change on marine benthic communities
2006-2007 Department of Fisheries, Forestry and Agriculture, Isle of Man Government, UK £36,000, AR Brand and BD Beukers-Stewart Scallop Fisheries Research
2005-2006 Department of Fisheries, Forestry and Agriculture, Isle of Man Government, UK £120,000, AR Brand and BD Beukers-Stewart Scallop Fisheries Research
2003-2006 Esmée Fairbairn Foundation, UK £149,950 in total with £18,000 awarded to my research group Towards a network of Marine Protected Areas in the British Isles


Current Students 

Past Students

  • Leigh Howarth (PhD) The ecological and fishery effects of Scotland’s first no-take marine reserve (with Dr JP Hawkins)


Beukers-Stewart, Bryce

Contact details

Dr Bryce Beukers-Stewart
Department of Environment and Geography
University of York
YO10 5NG

Tel: 01904 324789
Fax: 01904 322998




1st Year

  • Ecological Principles for the Environment

2nd Year

  • York Based Fieldtrip (Convenor)



  • Ocean and Coastal Science (Convenor)
  • Biodiversity Conservation and Protected Areas (Convenor)
  • Current Research and Communication in Marine Conservation (Convenor)

External activities


  • ICES Scallop Working Group - Member
  • Clyde 2020 Research Advisory Group - Member
  • Project UK Fisheries Improvements (Channel scallops) - Steering Group Member

Editorial duties

  • Manuscript Reviewer - Marine Ecology Progress Series, Marine Biology, ICES Journal of Marine Science, Journal of Fish Biology, Journal of the Marine Biological Association UK, Coral Reefs, Marine Environmental Research, Fish and Fisheries, Journal of Applied Ecology, PLOS One, Hydrobiologia, Environmental Conservation, Estuaries and Coasts, Marine and Freshwater Research, Frontiers in Marine Science.
  • Report Reviewer - Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO).
  • Grant Reviewer - Portuguese Marine Sciences & Technology; Defra, UK; Lizard Island Research Station, Australian Museum.
  • Seafood Sustainability Adviser / Assessor - Blue Ocean Institute, USA; Marine Stewardship Council
  • PhD External Examiner - James Cook University, Australia (twice); Bangor University, Wales; Warwick University, England; University of Ulster, Northern Ireland, Plymouth University, England.

Invited talks and conferences

Shilland R, Dobby H & Stewart BD (2015) Effects of environmental variation on king scallop recruitment & landings in the British Isles. Invited seminar, ICES Scallop Working Group meeting, October 2015, Jersey, British Isles.

Stewart BD (2015) Fishing for solutions: lessons from global best practice on how to improve fisheries management in Lake Baikal. Invited seminar, Leverhulme Trust, July 2015, Davsha, Russia

Stewart BD (2015) Marine Protected Areas: fisheries versus warm fuzzy feelings? Invitied seminar, Yorkshire Wildlife Trust, April 2015, Flamborough, England, UK

Stewart BD (2015) Marine Protected Areas: fisheries versus warm fuzzy feelings? Invited seminar, Sheffield University, February 2015, England, UK

Stewart BD (2015) UK scallop fishery: status, threats and opportunities. Invited seminar, Seafish, February 2015, York, England, UK

Stewart BD (2014) Spatial management of shellfish fisheries: the path to a sustainable future? Invited seminar, Scottish Parliament, November 2014, Edinburgh, Scotland, UK.

Stewart BD (2014) Spatial management of scallop fisheries: the path to a sustainable future? Invited seminar, Defra Shellfish Research Symposium, October 2014, London, England, UK.

Stewart BD and Howarth LM (2014) Effects of the Lamlash Bay No-take Zone on the marine ecosystem: Implications for wider management. Invited seminar, ICES Scallop Working Group meeting, October 2014, Nantes, France.

Stewart BD and Howarth LM (2014) Can we have our fish and eat it? Invited seminar. Community of Arran Seabed Trust, July 2014, Lamlash, Scotland, UK.

Stewart BD (2014) Can we have our fish and eat it? Invited seminar. Scottish Association of Marine Sciences, July 2014, Oban, Scotland, UK.

Stewart BD, Howarth LM, Sciberras M, Yates KL & Hoskin MG (2013) Opening up about using closed areas to manage scallop fisheries. Keynote speaker. 19th International Pectinid Workshop, April 2013, Florianopolis, Brazil Stewart et al (2013) (PDF , 4,720kb)

Stewart BD (2012) Fisheries discards: waste of resources or a necessary evil? Invited panelist. Debate on the Reform of the Common Fisheries Policy. European Parliament, November 2012, Brussels, Belgium.

Beukers-Stewart BD, Lart W, Sinfield C, Brand AR and Jenkins SR (2012) Patterns and mechanisms of damage in a scallop dredge fishery. Invited seminar. World Fisheries Congress, May 2012 Edinburgh, Scotland, UK.

Beukers-Stewart BD (2012) Can we have our fish and eat it?Invited seminar, University of Newcastle, March 2012, Newcastle upon Tyne, UK.

Beukers-Stewart BD (2011) Can we have our fish and eat it? Keynote speaker. Conservation Forum: Annual Conference of the Lincolnshire Wildlife Trust. November 2011, Horncastle, UK.

Beukers-Stewart (2010) Is sustainable seafood just a flash in the pan? Invited seminar. Bangor University, October 2010, Bangor, Wales, UK.

Beukers-Stewart BD, Beukers-Stewart JS, Vause BJ and Brand AR (2009) Can MPAs sustain scallop fisheries? Invited seminar. Seachange: an International Conference on Marine Protected Areas. December 2009, London, UK. Beukers-Stewart et al (2009) (PDF , 1,776kb)

Beukers-Stewart BD and Beukers-Stewart JS (2009) Management of UK scallop fisheries: current status and future opportunities. Invited seminar. Fisheries Research Services, September 2009, Aberdeen, UK.

Beukers-Stewart BD and Beukers-Stewart JS (2007) Monkfish: a cautionary tail. Invited seminar. Catching for the Market Workshop, Seafood Scotland and Seafood Choices Alliance. October 2007, Edinburgh, UK.

Beukers-Stewart BD and Brand AR (2007). Seeking sustainable scallops: do MPAs really work? Invited seminar. Coastal Futures Conference, January 2007, London, UK.

Beukers-Stewart BD (2006). Can we have our fish and eat it? Invited seminar, Defra, Marine and Fisheries Division, June 2006, London, UK.

Beukers-Stewart BD (2005) Closed areas and stock enhancement of scallops: what’s the catch? Invited seminar. Seafish Industry Authority, February 2005, Edinburgh, UK.

Media coverage

The New York Times: "A Scotsman's mission ends in fishing bay restored" Aug 2015

The Scotsman: "Scottish marine reserve boosts scallop population" Feb 2015

Science Daily: "Community-led marine reserve produces benefits for fisheries, conservation" Feb 2015

The Metro: "Celebrity chefs fail food test, but what about the rest of us?" Nov 2013

The Telegraph: "Delia and Nigella panned over endangered fish" Oct 2013

The Times: "Celebrity chefs given a dressing down for choosing wrong fish" Oct 2013

The Financial Times: "Celebrity chefs shun sustainable fishing" Oct 2013

Futurity: "Lack of biodiversity could topple fisheries" May 2013

The Guardian: "EU fishing fleets discarded £2.7bn of cod, claims report" 1st August, 2011

Hugh's Fish Fight: "Discards Ban will boost fisheries says new research" 23rd June, 2011

BBC News: "Marine life flourishing at Lamlash reserve" 22nd April, 2011

MSN News: "Protected marine reserve hailed" 28th April, 2011

Science Daily: "Climate change boosts scallop stocks in UK waters" 13th October, 2009