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.


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)
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)
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)
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)
A general framework for combining ecosystem models
Spence Michael A, Blanchard Julia L, Rossberg Axel G, Heath Michael R, Heymans Johanna J, Mackinson Steven, Serpetti Natalia, Speirs Douglas C, Thorpe Robert B, Blackwell Paul G
Fish and Fisheries Vol 19, pp. 1031–1042 (2018)
Exploring the influence of food and temperature on North Sea sandeels using a new dynamic energy budget model
MacDonald Alan, Speirs Douglas C, Greenstreet Simon P R, Heath Michael R
Frontiers in Marine Science Vol 5 (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
NERC of Canada (External organisation)
NERC (Natural Environment Research Council) (External organisation)
Editorial Board Member for the Journal of Biological Systems
Editorial board member
Ecology (Journal)

more professional activities


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 - 30-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
PhD studentship on modelling Norway lobster and Hematodinium sp. in the Clyde
Speirs, Douglas (Principal Investigator)
01-Jan-2015 - 31-Jan-2019
Modelling the impacts of trawling on the marine ecosystem
Heath, Mike (Principal Investigator) Speirs, Douglas (Co-investigator)
01-Jan-2015 - 31-Jan-2015

more projects


Mathematics and Statistics
Livingstone Tower

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