Dr Douglas Speirs

Senior Lecturer

Mathematics and Statistics

Personal statement

I joined the faculty staff of the Department of Mathematics and Statistics in 2007 and was appointed senior lecturer in Marine Resource Modelling in 2014.  I am also the departmental Director of Knowledge Exchange, responsible for helping colleagues develop KE activities such as Knowledge Transfer Partnerships, Continuous Professional Development, and consultancy. My research involves developing computationally efficient population models of fish stocks in which physiological structure and spatial structure and combined, and I have strong track record of widely cited peer-reviewed publications (average of 24 citations per article, three papers with >100 citations). My research on spatial modelling of zooplankton, as part of the NERC MarProd programme, established a new to modelling the growth and transport by ocean currents of stage-structured populations (e.g. Speirs et al. 2006, Mar. Ecol. Prog. Ser. 313, 173-192). With partners at Marine Scotland Science I led the development of a new size-structured multispecies model for fish communities (Speirs et al. 2010, Fish. Res. 106, 474-494), now known as FishSUMS (Fish Strathclyde University – Marine Scotland). Motivated by policy-driven concerns about the effects of multi-species fisheries, the model has been used to explore the consequences of a range of fisheries management scenarios. Over the last seven years I have been PI or Co-I in grants totalling over £1.3 million FEC. I am an editor for Ecology and the Journal of Biological Systems, and I sit on steering groups of the Strathclyde Marine Institute and the Centre for Mathematics Applied to the Life Sciences (CMALS).  I am deputy convener of the MASTS Fisheries Forum, a group that has representation from all major fisheries related institutes in Scotland, and covers diverse disciplines including biology, stock assessment, ecosystem modelling, economics, and stakeholder experience.


How is climate change affecting marine life in the Arctic?
Heath Michael R, Benkort Deborah, Brierley Andrew S, Daewel Ute, Hofmeister Richard, Laverick Jack H, Proud Roland, Speirs Douglas C
Frontiers for Young Minds (2020)
The effect of viral plasticity on the persistence of host-virus systems
Choua Melinda, Heath Michael R, Speirs Douglas C, Bonachela Juan A
Journal of Theoretical Biology Vol 498 (2020)
Trends in sandeel growth and abundance off the east coast of Scotland
MacDonald Alan, Speirs Douglas C, Greenstreet Simon P R, Boulcott Philip, Heath Michael R
Frontiers in Marine Science Vol 6 (2019)
Timing of sandeel spawning and hatching off the East Coast of Scotland
MacDonald Alan, Heath Michael R, Greenstreet Simon P R, Speirs Douglas C
Frontiers in Marine Science Vol 6 (2019)
Population density and temperature correlate with long-term trends in somatic growth rates and maturation schedules of herring and sprat
Hunter Aidan, Speirs Douglas C, Heath Michael R
PLOS One Vol 14 (2019)
Modelling the effects of changes in sea-ice extent on Arctic marine food webs
Heath Michael, Benkort Deborah, Brierley Andrew, Daewel Ute, Hofmeister Richard, Proud Roland, Schrum Corinna, Speirs Douglas
MASTS Annual Science Conference (2018)

more publications

Professional activities

5th International Zooplankton Production Symposium in Pucon
Invited speaker
University of Glasgow, DEEB seminar “Cod in a web: modelling multi-species length-structured interactions in a North Sea fish community”, 2nd December 2009.
Invited speaker
Editorial Board Member for the Journal of Biological Systems
Editorial board member
Subject matter editor for Ecology
Ecology (Journal)
Marine Alliance for Science and Technology Scotland (External organisation)

more professional activities


Mission Atlantic. Towards the Sustainable Development of the Atlantic Ocean
Speirs, Douglas (Principal Investigator) Heath, Mike (Co-investigator)
01-Jan-2020 - 31-Jan-2024
Doctoral Training Grant - Scottish Universities Partnership for Environmental Research (SUPER)
Heath, Mike (Principal Investigator) Speirs, Douglas (Co-investigator)
01-Jan-2019 - 30-Jan-2027
MEESO - Ecologically and Economically Sustainable Mesopelagic Fisheries
Speirs, Douglas (Principal Investigator)
01-Jan-2019 - 31-Jan-2023
Microbes to Megafauna Modelling of Arctic Seas (MiMeMo)
Heath, Mike (Principal Investigator) Speirs, Douglas (Co-investigator)
01-Jan-2018 - 30-Jan-2021
Mechanistic understanding of the role of diatoms in the success of the Arctic Calanus complex and implications for a warmer Arctic
Banas, Neil (Principal Investigator) Heath, Mike (Co-investigator) Speirs, Douglas (Co-investigator)
01-Jan-2017 - 02-Jan-2021
Scoping the background information for an Ecosystem Approach to Fisheries
Heath, Mike (Principal Investigator) Speirs, Douglas (Co-investigator)
25-Jan-2016 - 31-Jan-2017

more projects


Mathematics and Statistics
Livingstone Tower

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