Professor Sheila JJ Heymans


        Photo of Prof Sheila Heymans in Oban harbour

Executive Director European Marine Board (seconded until 31/12/2021)

I study the impact of fisheries and other anthropogenic factors on the marine ecosystem using tools such as Ecopath.

I have published > 50 peer-reviewed publications and was a lead author on the IPBES chapter on policy support tools for modelling scenarios.

I took up the post of Executive Director of the European Marine Board in 2018

Contact details:

My research interests

I have been involved with environmental impacts of fisheries and ecosystem change for 20 years and have published on a variety of topics ranging from the ecosystem effects of fishing, indicators of ecosystem status, the reasons for species decline, historical reconstructions of ecosystems, to the impact of fishing subsidies on the North Sea ecosystem.

My background is in ecosystem modelling approaches such as Ecopath with Ecosim and Ecological Network Analysis and I have used and taught both techniques extensively since 1993.

Currently my main focus is the social, economic and ecological impacts of fishing in the world’s oceans and the resilience of these ecosystems to fishing and environmental changes.


Current research projects

Marine Ecosystems Research Programme (MERP): Funded by NERC. 2014-18. SAMS PI

Long-lived radionuclides in the surface environment (Lo-Rise): Modelling radioactive C14 through the food web. Funded by NERC. 2013-17

DESSIM: Decision support system for managing Israel's Mediterranean EEZ. Funded by Israel Oceanographic and Limnological Research.


Major past projects

Sustainable Fuels from Marine Biomass (Biomara) project: Funded by EU INTERREG IVA Programme; Scottish Government; Highlands and Islands Enterprise (Scotland); Crown Estate (UK); Department of Enterprise, Trade and Investment (Northern Ireland); and Department of Communications, Energy and Natural Resources (Ireland). 2009-2012

Knowledge-based Sustainable Management for Europe's Seas (KnowSeas) project: Funded by the European Commission's FP7 Programme. 2009-13

Sustainable management of deep-water fisheries and their impact on marine biodiversity (Deepfish) project. Funded by Esmée Fairbairn Foundation. 2006-08

Undergraduate teaching

Marine Science BSc - year 4 / level 10: Marine Modelling module - lecturer

Marine Science BSc - year 3 / level 9: Fisheries module - lecturer


Postgraduate teaching

Ecosystem-based Management of Marine Ecosystems MSc: Advanced Modelling module - module leader, lecturer

Ecosystem-based Management of Marine Ecosystems MSc: Professional Skills module - module leader 2013-16, now lecturer

From 2013-16 I was Programme leader for the Ecosystem-based Management of Marine Ecosystems MSc

IDCORE D.Eng: Ecosystems course

 

List of current research students

Jacob Bentley: Modelling the Irish Sea. PhD 2017-present. UHI

Kieran Tierney: Modelling C14 in the Irish Sea. PhD 2013-17. University of Glasgow

Xavier Corrales: Israel EEZ. PhD 2015-present. CSIC, Spain

Ismet Saygu: Modelling the Gulf of Mersim. PhD 2014-present. Cukurova University, Turkey


List of alumni research students

Kyla Orr: Ecosystem effects of seaweed harvesting for biofuels. PhD 2009-13. UHI

Karen Alexander: Offshore power and marine stakeholders. PhD 2009-12. UHI

Consultancy and industry experience

Heymans JJ. Analysis of the Ecopath with Ecosim models of the Clyde Sea and validity for use in the ecosystem based management of the Clyde Sea ecosystem in Clyde Sea Forum pp. 21, SAMS, Oban.

Howard MR, Heymans JJ. Users and user requirements of the Mooi River for Phase 1 of the Catchment Management Plan of the Situation Analysis of the Mooi River for the Department of Water Affairs and Forestry. South Africa.

Heymans JJ, Howard MR. 1997. Users and user requirements of the Blesbokspruit for Phase 1 of the Catchment Management Plan of the Situation Analysis of the Blesbokspruit for the Department of Water Affairs and Forestry. South Africa.

Pulles W, Heymans JJ. Situation Analysis and Conceptual Model for the Screening Level Risk Assessment of the BTS process for Iscor Heavy Minerals.

Accessing consultancy services from SAMS

SAMS consultancy work is delivered through its wholly owned commercial subsidiary, SAMS Research Services Ltd. (SRSL).

SRSL operates a comprehensive Quality Management System (QMS) that is accredited to ISO9001:2008 standard, guaranteeing that all projects deliver the best possible service to our customers.All SRSL projects are planned by a professional programme manager who oversees a team of dedicated project managers, all of whom are focussed specifically on client delivery, and have scientific experience and technical expertise in fields relevant to their assigned projects.

For further information concerning commercial enterprise opportunities at SAMS, please contact the SRSL team by email (info@srsl.com) or phone +44 (0) 1631 559 470.

Peer-reviewed publications

  1. Caihong FuMorgane Travers-TroletLaure VelezArnaud GrüssAlida BundyLynne J. ShannonElizabeth A. FultonEkin AkogluJennifer E. HouleMarta CollPhilippe VerleyJohanna J. HeymansEmma JohnYunne-Jai Shin
    (2018) Risky business: The combined effects of fishing and changes in primary productivity on fish communities. Ecological Modelling 368: 265-276  https://doi.org/10.1016/j.ecolmodel.2017.12.003
  2. Serpetti, N., Baudron, A.R., Burrows, M.T., Payne, B.L., Helaouët, P., Fernandes, P.G. , Heymans, J.J. 2017. Impact of ocean warming on sustainable fisheries management informs the Ecosystem Approach to Fisheries. Scientific Reports 7(1): 13438, https://doi.org/10.1038/s41598-017-13220-7
  3. Corrales, X., M. Coll, E. Ofir, C. Piroddi, M. Goren, D. Edelist, J. J. Heymans, J. Steenbeek, V. Christensen, and G. Gal. 2017. Hindcasting the dynamics of an Eastern Mediterranean marine ecosystem under the impact of multiple stressors. Marine Ecology Progress Series 580:17-36. DOI: https://doi.org/10.3354/meps12271 
  4. Stelzenmüller, V., M. Coll, A.D. Mazaris, S. Giakoumi, S. Katsanevakis, M.E. Portman, R. Degen, P. Mackelworth, A. Gimpel, P.G. Albano, V. Almpanidou, J. Claudet, F. Essl, T. Evagelopoulos, J.J. Heymans, T. Genov, S. Kark, F. Micheli, M.G. Pennino, G. Rilov, B. Rumes, J. Steenbeek, and H. Ojaveer. 2018. 'A risk-based approach to cumulative effect assessments for marine management.' Science of The Total Environment, 612: 1132-40. https://doi.org/10.1016/j.scitotenv.2017.08.289
  5. Bentley JW, Serpetti N, Heymans JJ. 2017. Investigating the potential impacts of ocean warming on the Norwegian and Barents Seas ecosystem using a time-dynamic food-web model. Ecological Modelling 360: 94-107
  6. Tierney KM, Muir GKP, Cook GT, Heymans JJ, MacKinnon G, Howe JA, Xu S, Brownlow A, Davidson NJ, ten Doeschate M, Deaville R. 2017. Nuclear Reprocessing-Related Radiocarbon (14C) Uptake into UK Marine Mammals. Marine Pollution Bulletin. https://doi.org/10.1016/j.marpolbul.2017.07.002. 
  7. Corrales X, Ofir E, Coll M, Goren M, Edelist D, Heymans JJ, Gal G. 2017. Modeling the role and impact of invasive species and fisheries on the Israeli marine continental shelf ecosystem. Journal of Marine Systems 170: 88-102 doi.org/10.1016/j.jmarsys.2017.02.004
  8. Ofir E, Heymans JJ, Shapiro J, Goren M, Spanier E, Gal G. 2017. Predicting the impact of Lake Biomanipulation based on food-web modeling—Lake Kinneret as a case study. Ecological Modelling 348:14-24.
  9. Murphy EJ, Cavanagh RD, Drinkwater KF, Grant SM, Heymans JJ, Hofmann EE, Hunt Jr GL, Johnston NM. 2016. Understanding the structure and functioning of polar pelagic ecosystems to predict the impacts of change. Proc. R. Soc. B 20161646 in press. http://dx.doi.org/10.1098/rspb.2016.1646
  10. Muir GKP, Tierney KM, Cook GT, MacKinnon G, Howe JA, Heymans JJ, Hughes DH, Xu S. 2017. Ecosystem uptake and transfer of Sellafield-derived radiocarbon (14C). Part 1. The Irish Sea. Marine Pollution Bulletin 114(2):792-804 http://dx.doi.org/10.1016/j.marpolbul.2016.10.072
  11. Tierney, K. M., G. K. P. Muir, G. T. Cook, G. MacKinnon, A. Howe, J. J. Heymans, D. J. Hughes, and S. Xu. 2016. Ecosystem uptake and transfer of Sellafield-derived radiocarbon (14C) part 2: The West of Scotland. Marine Pollution Bulletin in press. 10.1016/j.marpolbul.2016.11.014
  12. Morato T, Lemey E, Menezes G, Pham CK, Brito J, Soxzynski A, Pitcher TJ, Heymans JJ. Food-web and ecosystem structure of the open-ocean and deep sea environments of the Azores, NE Atlantic. In press. Frontiers in Marine Science. doi: 10.3389/fmars.2016.00245
  13. Reed J, Shannon L, Velez L, Akoglu E, Bundy A, Coll M, Fu C, Fulton B, Grüss A, Halouani G, Heymans JJ, Houle J, John E, Lasram FBR, Le Loc'h F , Salihoglu B, Verley P, Shin Y-J. 2016. Ecosystem indicators – accounting for variability in species’ trophic levels. ICES Journal of Marine Science. 74(1): 158-169. doi:10.1093/icesjms/fsw150
  14. Alexander KA, Meyjes SA, Heymans JJ. 2016. Spatial ecosystem modelling of marine renewable energy installations: Gauging the utility of Ecospace. Ecological Modelling 331:115-128.
  15. Heymans JJ, Coll M, Link JS, Mackinson S, Steenbeek J, Walters C, Christensen V. 2016. Best practice in Ecopath with Ecosim food-web models for ecosystem-based management. Ecological Modelling 331:173-185.
  16. Heymans JJ, Tomczak MT. 2016. Regime shifts in the Northern Benguela ecosystem: Challenges for management. Ecological Modelling 331:151-159.
  17. Scott E, Serpetti N, Steenbeek J, Heymans JJ. A stepwise fitting procedure for automated fitting of Ecopath with Ecosim models. SoftwareX doi:10.1016/j.softx.2016.02.002.
  18. Tierney KM, Muir GKP, Cook GT, MacKinnon G, Howe JA, Heymans JJ, Xu S. 2016. Accumulation of Sellafield-derived radiocarbon (14C) in Irish Sea and West of Scotland intertidal shells and sediments, Journal of Environmental Radioactivity. 151(1): 321-327.
  19. Coll M., Shannon LJ, Kleisner KM, Juan-Jordá MJ, Bundy A, Akoglu AG, Banaru D, Boldt JL, Borges MF, Cook A, Diallo I, Fu C, Fox C, Gascuel D, Gurney LJ, Hattab T, Heymans JJ, Jouffre D, Knight BR, Kucukavsar S, Large SI, Lynam C, Machias A, Marshall KN, Masski H, Ojaveer H, Piroddi C, Tam J, Thiao D, Thiaw M, Torres MA, Travers-Trolet M, Tsagarakis K, Tuck I, van der Meeren GI, Yemane D, Zador SG, Shin YJ. 2016. Ecological indicators to capture the effects of fishing on biodiversity and conservation status of marine ecosystems. Ecological Indicators, 60, 947-962. http://dx.doi.org/10.1016/j.ecolind.2015.08.048
  20. Fondo EN, Chaloupka M, Heymans JJ, Skilleter GA. Banning fisheries discards abruptly has a negative impact on population dynamics of charismatic marine megafauna. PlosOne PONE-D-15-34653 10.1371/journal.pone.0144543
  21. Hyder K, Rossberg AG, Allen JI, Austen MC, Barciela RM, Blanchard J, Burrows MT, Defriez E, Dorrington T, Edwards K, Garcia-Carreras B, Heath MR, Hembury DJ, Heymans JJ, Holt J, Houle JE, Jennings S, Mackinson S, McPike R, Mee L, Mills DK, Montgomery C, Pearson D, Pinnegar JK, Pollicino M, Popova EE, Rae L, Rogers SI, Speirs D, Spence M, Thorpe R, Turner RK, van der Molen J, Yool A, Paterson DM. 2015. Making modelling count - increasing the contribution of shelf-seas community and ecosystem models to policy development and management, Marine Policy. 61: 291-302. doi:10.1016/j.marpol.2015.07.015
  22. Coll M, Akoglu E, Arreguín-Sánchez F, Fulton EA, D. Gascuel D, Heymans JJ, Libralato S, Mackinson S, Palomera I, Piroddi C, Shannon LJ, Steenbeek J, Villasante S, Christensen V. 2015. Modelling dynamic ecosystems: venturing beyond boundaries with the Ecopath approach. Reviews in Fish Biology and Fisheries 25: 413-424. http://link.springer.com/article/10.1007/s11160-015-9386-x
  23. Kleisner K, Coll M, Lynam CP, Bundy A, Shannon L, Shin YJ, Boldt J, Borges MF, Diallo I, Fox C, Gascuel D, Heymans JJ, Jordá MJJ, Jouffre D, Large SI, Marshall KN, Ojaveer H, Piroddi C, Tam J, Torres MA, Travers-Trolet M, Tsagarakis K, van der Meeren GI, Zador S. 2015. Identifying community changes across marine ecosystems based on the biomass of exploited species. Ecosystem Services. 16: 413-429. 1016/j.ecoser.2015.02.002
  24. Alexander KA, Kershaw P, Cooper P, Gilbert AJ, Hall-Spencer JM, Heymans JJ, Kannen A, Los HJ, O'Higgins T, O'Mahony C, Tett P, Troost T, Van Beusekom J. 2015. Challenges of achieving Good Environmental Status in the Northeast Atlantic. Ecology and Society 20 (1): 49. http://www.ecologyandsociety.org/vol20/iss1/art49/
  25. Blenckner T, Kannen A, Barausse A, Fischer C, Heymans JJ, Luisetti T, Todorova V, Valman M, Mee L. Past and future challenges in managing European seas. Ecology and Society 20 (1): 40. http://www.ecologyandsociety.org/vol20/iss1/art40/
  26. Alexander K, Heymans JJ, Magill S, Tomczak M, Holmes S, Wilding TA. 2015. Investigating the recent decline in gadoid stocks in the west of Scotland shelf ecosystem using a food-web model. ICES Journal of Marine Science 72(2): 436-449. Doi: 10.1093/icesjms/fsu149
  27. Sardà F, Coll M, Heymans JJ, Konstantinos SI. 2015. Overlooked impacts and challenges of the new European discard ban. Fish and Fisheries, 16(1): 175-180 doi:10.1111/faf.12060. (Online 30/9/2013)
  28. Maclean IMD, Inger R, Benson D, Booth CG, Embling CB, Grecian WJ, Heymans JJ, Plummer K, Shackshaft M, Sparling C, Wilson B, Wright LJ, Bradbury G, Christen N, Godley BJ, Jackson AC, McCluskie A, Nichols-Lee R, Bearhop S. 2014. Resolving issues with environmental impact assessment of marine renewable energy installations. Frontiers in Marine Science 1 in press. http://journal.frontiersin.org/Journal/10.3389/fmars.2014.00075/abstract
  29. Shannon LJ, Coll M, Bundy A, Gascuel D, Heymans JJ, Kleisner K, Lynam CP, Piroddi C, Tam J, Travers-Trolet M, Shin Y. 2014. Trophic level-based indicators to track fishing impacts across marine ecosystems. Marine Ecology Progress Series 512: 115-140. doi: 10.3354/meps10821
  30. Levin N, Coll M, Francheti S, Gal G, Giakoumi S, Göke C, Heymans JJ, Katsanevakis S, Mazor T, Őztürk B, Rivol G, Gajewski J, Steenbeek J, Kark S. 2014. Review of the biodiversity data requirements for systematic conservation planning in the Mediterranean Sea. Marine Ecology Progress Series. 508:201-281.
  31. Heymans JJ, Coll M, Libralato S, Morissette L, Christensen V. 2014. Global patterns in ecological indicators of marine food webs: a modelling approach. PLoS ONE 1371/journal.pone.0095845
  32. Orr KK, Horstmeyer L, Weigl S, Wilding TA, Heymans JJ. 2014. Detached macroalgae: its importance to sandy beach fauna. Estuarine Coastal and Shelf Science 150: 125-135 http://dx.doi.org/10.1016/j.ecss.2013.12.011
  33. Tomczak MT, Heymans JJ, Yletyinen J, Niiranen S, Otto SA, Blenckner T. 2013. Ecological network indicators of ecosystem status and change in the Baltic Sea. PLoS ONE 8:e75439. doi:10.1371/journal.pone.0075439
  34. Torres MA, Coll M, Heymans JJ, Christensen V, Sobrino I. 2013. Food-web structure of and fishing impacts on the Gulf of Cadiz ecosystem (South-western Spain). Ecol. Model. 265: 26-44.
  35. Alexander KA, Wilding TA, Heymans JJ. Attitudes of Scottish fishers towards marine renewable energy. Marine Policy 37: 239-244. http://dx.doi.org/10.1016/j.marpol.2012.05.005
  36. Hughes AD, Black KD, Campbell I, Heymans JJ, Orr KK, Stanley MS, Kelly MS. Comments on ‘Prospects for the use of macroalgae for fuel in Ireland and the UK: An overview of marine management issues’. Marine Policy 38:554-556. doi.org/10.1016/j.marpol.2012.08.001
  37. Shin YJ, Bundy A, Shannon LJ, Blanchard JL, Chuenpagdee R, et al. 2012. Global in scope and regionally rich: an IndiSeas workshop helps shape the future of marine ecosystem indicators. Reviews in Fish Biology and Fisheries, DOI 10.1007/s11160-012-9252-z: 1-11.
  38. Heymans JJ, Mackinson S, Sumaila UR, Dyck A, Little A. 2011. The impact of subsidies on the ecological sustainability and future profits from North Sea fisheries. PLOS One 6(5): 10.1371/journal.pone.0020239
  39. Heymans JJ, Howell KL, Ayers M, Gordon JDM, Jones E, Neat F. 2011. Do we have enough information to apply the ecosystem approach to management of deep sea fisheries? An example from the West of Scotland. ICES Journal of Marine Science 68: 265-280, doi:10.1093/icesjms/fsq065.
  40. Shin Y-J, Shannon LJ, Bundy A, Coll M, Aydin K, Bez N, Blanchard JL, Borges Mde F, Diallo I, Diaz E, Heymans JJ, Hill L, Johannesen E, Jouffre D, Kifani S, Labrosse P, Link JS, Mackinson S, Masski H, Möllmann C, Neira S, Ojaveer H, Abdllihi KOM, Perry I, Thiao D, Yemane D, Cury PM. 2010. Using indicators for evaluating, comparing and communicating the ecological status of exploited marine ecosystems. 2: Setting the scene, ICES Journal of Marine Science 67: 692-716. doi:10.1093/icesjms/fsp294
  41. Shin Y-J, Bundy A, Shannon LJ, Simier M, Coll M, Fulton EA, Link JS, Jouffre D, Ojaveer H, Mackinson S, Heymans JJ, Raid T. 2010. Can simple be useful and reliable? Using ecological indicators to represent and compare the states of marine ecosystems, ICES Journal of Marine Science, 67: 717-731. doi:10.1093/icesjms/fsp287
  42. Coll M, Shannon LJ, Yemane D, Link JS, Ojaveer H, Neira S, Jouffre D, Labrosse P, Heymans JJ, Fulton EA, Shin Y-J. 2010. Ranking the ecological relative status of exploited marine ecosystems, ICES Journal of Marine Science, 67: 769-786. doi:10.1093/icesjms/fsp261
  43. Heymans JJ, Sumaila UR, Christensen V. 2009. Policy options for the northern Benguela ecosystem using a multispecies, multifleet ecosystem model. Progress in Oceanography, 83: 417-425.
  44. Bundy A, Heymans JJ, Morisette L, Savenkoff C. 2009. Seals, cod and forage fish: A comparative exploration of variations in the theme of stock collapse and ecosystem change in Northwest Atlantic ecosystems. Progress in Oceanography, 81: 188-206 doi:10.1016/j.pocean.2009.04.010
  45. Mackinson S, Daskalov G, Heymans JJ, Neira S, Arancibia H, Zetina-Rejón M, Jiang H, Cheng HQ, Coll M,  Arreguin-Sanchez F, Keeble K, Shannon L. 2009. Which forcing factors fit? Using ecosystem models to investigate the relative influence of fishing and changes in primary productivity on the dynamics of marine ecosystems. Ecological Modelling, 220:2972-2987, doi:10.1016/j.ecolmodel.2008.10.021.
  46. Ainsworth C, Pitcher TJ, Heymans JJ, Vasconcellos M. 2008. Reconstructing historical marine ecosystems using food web models: Northern British Columbia from Pre-European contact to present. Ecological Modelling 216: 354-368.
  47. Palomares MLD, Heymans JJ, Pauly D. Historical ecology of the Raja Ampat Archipelago, Papua Province, Indonesia. History and Philosophy of the Life Sciences 29: 33-56.
  48. Heymans JJ, Guénette S, Christensen V. 2007. Evaluating network analysis indicators of ecosystem status in the Gulf of Alaska. Ecosystems 10(3): 488-502.
  49. Guénette S, Heymans SJJ, Christensen V, Trites AW. 2006. Ecosystem models show combined effects of fishing, predation, competition, and ocean productivity on Steller sea lions (Eumetopias jubatus) in Alaska. Canadian Journal of Fisheries and Aquatic Sciences 63: 2495-2517.
  50. Heymans JJ, Shannon LJ, Jarre A. 2004. Changes in the northern Benguela ecosystem over three decades: 1970s, 1980s and 1990s. Ecological Modelling 172(2-4): 175-195.
  51. Christensen V, Guénette S, Heymans JJ, Walters CJ, Watson R, Zeller D, Pauly D. 2003. Hundred-year decline of North Atlantic predatory fishes. Fish and Fisheries 4: 1-24.
  52. Heymans JJ, Ulanowicz RE, Bondavalli C. 2002. Network analysis of the South Florida Everglades graminoid marshes and comparison with nearby cypress ecosystems. Ecological Modelling, 49: 5-23.
  53. Heymans JJ. ECOTOX: Ecological Modelling and Ecotoxicology, Edited by LA Jorgensen, SE Jorgensen, SN Nielsen, Elsevier Science, Amsterdam, 2000. CD-ROM. ISBN 0-444-50240-8; NLG 1,200 or USD 609. Ecological Modelling 144: 97-98.
  54. Heymans JJ, Baird D. 2000. Network analysis of the northern Benguela ecosystem by means of NETWRK and ECOPATH. Ecological Modelling 131 (2/3): 97-119.
  55. Heymans JJ, Baird D. 2000. A carbon flow model and network analysis of the northern Benguela upwelling system, Namibia. Ecological Modelling 126: 9-32.
  56. Baird D, Heymans JJ. Assessment of ecosystem changes in response to fresh water inflow of the Kromme River Estuary, St. Francis Bay, South Africa: A Network Analysis approach. Water SA 22(4): 307-318.
  57. Heymans JJ, McLachlan A. 1996. Carbon budget and energy flow in a high-energy beach ecosystem. Estuarine, Coastal and Shelf Science. 43: 485-505.
  58. Heymans JJ, Baird D. 1995. Energy flow of the Kromme estuarine ecosystem, St. Francis Bay, South Africa. Estuarine, Coastal and Shelf Science 41: 39-59.

Refereed non-ISI

  1. Acosta LA, Wintle BA, Benedek Z, Chhetri PB, Heymans SJ, Onur AC, Painter RL, Razafimpahanana A, Shoyama K. 2016: Using scenarios and models to inform decision making in policy design and implementation. In IPBES, 2016: Methodological assessment of scenarios and models of biodiversity and ecosystem services, Eds: S. Ferrier, K. N. Ninan, P. Leadley, R. Alkemade, L.A. Acosta, H.R. Akçakaya, L. Brotons, W.W.L. Cheung, V. Christensen, K. A. Harhash, J. Kabubo-Mariara, C. Lundquist, M. Obersteiner, H. Pereira, G. Peterson, R. Pichs-Madruga, N. Ravindranath, C. Rondinini and B.A. Wintle, Secretariat of the Intergovernmental Platform for Biodiversity and Ecosystem Services, Bonn, Germany http://www.ipbes.net/sites/default/files/downloads/pdf/Chapters_scenarios_3c_FINAL_20160831.pdf
  2. Heymans JJ, Coll M, Libralato S, Christensen V. 2012. Chapter 9.06: Ecopath theory, modelling and application to coastal ecosystems, pp. 93-113 in: Wolanski E, McLusky D (Ed) Treatise on Estuarine and Coastal Science, Elsevier.
  3. Bailey N, Bailey DM, Bellini LC, Fernandes PG, Fox C, Heymans S, Holmes S, Howe J, Hughes S, Magill S, McIntyre F, McKee D, Ryan MR, Smith IP, Tyldesley G, Watret R, Turrell WR. 2011. The west coast of Scotland Marine ecosystem: A review of scientific knowledge. Marine Scotland Science Report 09/11. 288 pp.
  4. Dulvy NK, Hyde K, Heymans SJJ, Chassot E, Platt T, Sherman K. 2009. Climate change, ecosystem variability and fisheries productivity. Chapter 2 in: Forget M-H, Stuart V, Platt T. Remote Sensing in Fisheries and Aquaculture, Dartmouth, Canada, IOCCG report No. 8: 11-28.
  5. Le Quesne WJF, Arreguín-Sánchez F, Heymans SJJ. INCOFISH Ecosystem Models: Transiting from Ecopath to Ecospace. Fisheries Centre Research Reports 15(6) 188 pp.
  6. Heymans SJJ, Sumaila UR. 2007. Updated ecosystem model for the Northern Benguela ecosystem, Namibia. In: Le Quesne, WJF, Arreguín-Sánchez F, Heymans SJJ. (Eds.) INCOFISH Ecosystem Models: Transiting from Ecopath to Ecospace. Fisheries Centre Research Reports 15(6):25-70.
  7. Guénette S, Heymans SJJ, Christensen V, and Trites AW, 2007. Ecosystem models of the Aleutian Islands and southeast Alaska show that Steller sea lions are impacted by Killer Whale predation when sea lion numbers are low, in Piatt, J.F., and Gende, S.M., eds., Proceedings of the Fourth Glacier Bay Science Symposium, October 26–28, 2004: U.S. Geological Survey Scientific Investigations Report 2007-5047, p. 150–154.
  8. Haggan N, Ainsworth C, Pitcher T, Sumaila UR, Heymans JJ. Life in the fast food chain: Oú sont Les Poissons d’Qntan? In: Parrish CC, Turner NJ, Solberg SM. (Eds.) Resetting the kitchen table: Food security, culture, health and resilience in coastal communities. Nova Science Publishers, Inc. pp. 51-74.
  9. Christensen V, Amorim PA, Diallo I, Diouf T, Guénette S, Heymans JJ, Mendy AN, Ould Taleb Ould Sidi MM, Palomares, M.L.D., Samb, B., Stobberup, K.A., Vakily, J.M., Vasconcellos, M., Watson, R. and Pauly, D. 2005. Trends in fish biomass off Northwest Africa, 1960-2000, pp 377-386 in: Chavance P, Bâ M, Gascuel D, Vakily JM, Pauly D. (eds.) Pêcheries maritimes, Êcolsystèmes & sociétés en Afrique de L’Ouest: Un demi-sièle de changement. Actes du symposium international, Dakar – Sénégal – 24-28 Juin 2002. Bruxelles, IRD, Commission Europeene.
  10. Pitcher TJ, Heymans SJJ, Ainsworth C, Buchary EA, Sumaila UR, and Christensen V. 2004. Opening The Lost Valley: Implementing A 'Back To Future' Restoration Policy For Marine Ecosystems and Their Fisheries. In Knudsen EE, MacDonald DD, Muirhead JK (eds) Sustainable Management of North American Fisheries. American Fisheries Society, Bethesda, MD. 43: 165-193.
  11. Heymans JJ. The effects of internal and external control on the northern Benguela ecosystem. p. 29-52 In: UR Sumaila, SI Steinshamn, M Skog and D Boyer (eds.) Ecological, economic and social aspects of Namibian fisheries. Eburon, Netherlands.

Non-refereed

  1. Bentley, J. W., Serpetti, N., Fox, C., Reid, D., Heymans, J. J. (2018) Modelling the food web in the Irish Sea in the context of a depleted commercial fish community. Part 1: Ecopath Technical Report. Scottish Association for Marine Science, Oban. U.K. Report no. 294, p.147 https://doi.org/10.6084/m9.figshare.63
  2. Corrales X, Ofir E, Coll M, Menachem G, Dor E, Heymans S, Gal G. 2016. Modelling the structure and functioning of the Israeli Marine Continental Shelf Ecosystem: Insights of the impacts of invasive species and fisheries. CIESM Congress Abstract. Rapp. Comm. int. Mer Médit. 41: 409.
  3. Corrales X, Coll M, Ofir E, Gorem M, Edelist D, Heymans S, Gal G. 2016. Hindcasting the dynamics of the Eastern Mediterranean marine ecosystem under the impacts of multiple stressors: A baseline for future management simulations.. CIESM Congress Abstract. Rapp. Comm. int. Mer Médit. 41: 543.
  4. Villasante S, Arreguín-Sánchez F, Heymans JJ, Libralato S, Piroddi C, Christensen V, Coll M. 2016. Modelling marine ecosystem using the Ecopath with Ecosim food web approach: new insights to address complex dynamics after 30 years of development. Ecological Modelling 331:1-4.
  5. Steenbeek J, Piroddi C, Coll M, Heymans JJ, Villasante S, Christensen V. 2014. Ecopath 30 Years Conference Proceedings: Extended Abstracts in Fisheries Centre Research Reports 22(3) 221
  6. Hidalgo M, Coll M, Hinz H, Catalán IC, Claudet J, Demestre M, Giannoulaki M, Heymans JJ, Le Loch F, Lindegren M, Möllmann C, Muntadas A, Navarro J, Olivar P, Otero J, Palomera I, Piroddi C, Steenbeek J, Tsagarakis K, WG COMEDA participants, 2014. The ICES Working Group on Comparative Analyses between European Atlantic and Mediterranean marine ecosystems – a new effort towards developing Ecosystem-based Fisheries Management (WG-COMEDA). ICES CM 2014/N:17.
  7. IW:Science. 2012. Large Marine Ecosystems and the Open Ocean: A global Analysis of Large Marine Ecosystems and Open Ocean science and transoundary management. ISBN 92-808-6027-5, Global Environment Facility, United Nations Environment Programme, United Nations University Institute for Water, Environment and Health, Scottish Association for Marine Science., Ontario, Canada.
  8. IW:Science. 2012. Large Marine Ecosystems and the Open Ocean: A global Synopsis of Large Marine Ecosystems and Open Ocean science and transboundary management. ISBN 92-808-6026-7, Global Environment Facility, United Nations Environment Programme, United Nations University Institute for Water, Environment and Health, Scottish Association for Marine Science., Ontario, Canada.
  9. Heymans JJ, Mackinson S, Sumaila R, Dyck A, Little A. 2010. The impact of subsidies on ecological sustainability and future profits from the North Sea fisheries. SAMS Report No. 266. Oak Foundation 23 pp.
  10. Heymans JJ. Book review: Ecosystem based management for the Oceans, edited by Karen McLeod and Heather Leslie, Island Press (2009). 368 pp. Biological Conservation, 143:1822. doi:10.1016/j.biocon.2010.02.018
  11. ICES. 2010. Report of the working group on large marine ecosystem program best practices (WGLMEBP), 6-7 July 2010, Paris, France. ICES CM 2010/SSGRSP:07. 25 pp.
  12. ICES. 2010. Report of the working group on holistic assessments of regional marine ecosystems (WGHAME), 12-16 October 2009, ICES Headquaters, Copenhagen. ICES CM 2009/RMC:13. 76 pp.
  13. Heymans JJ, Tomczak MT, Bleckner T, Niiranen S. 2009. Comparing indicators of ecosystem change using ecological network analysis. In: Ecopath 25 Years Conference Proceedings: Extended Abstracts Ed. By Palomares MLD, Morisette, L, Cisneros-Montemayor A, Varkey D, Coll M, Piroddi C. Fisheries Centre Research Reports 17(3): 64-66
  14. Tomczak MT, Heymans JJ, Blenckner T, Niiranen S., 2009. Ecological network analysis, indicators of food-web changes in the Baltic Sea. ICES CM 2009/P:04, 1-26.
  15. Howell K, Heymans JJ, Gordon JDM, Ayers M, Jones E. 2009. DEEPFISH Project: Applying an ecosystem approach to the sustainable management of deep-water fisheries. Part 1: Development of an Ecopath with Ecosim model. SAMS report 259a 259a. 116 pp, Scottish Association for Marine Science, Oban.
  16. Howell K, Heymans JJ, Gordon JDM, Ayers M, Jones E. 2009. DEEPFISH Project: Applying an ecosystem approach to the sustainable management of deep-water fisheries. Part 2: A new approach to managing deep-water fisheries. SAMS report 259b 259b. 28 pp, Scottish Association for Marine Science, Oban.
  17. Coll M, Shannon LJ, Yemane D, Link JS, Ojaveer H, Neira S, Jouffre D, Labrosse P, Heymans JJ, Fulton EA, Shin Y-J. 2009. Ranking ecological relative status of exploited marine ecosystems using multiple indicators. Poster at 3rd GLOBEC Open Science Meeting, Victoria BC, 22-26 June 2009.
  18. Heymans S. 2008. INCOFISH – Give fish a chance. Integrated multiple demands on coastal zones with emphasis on aquatic ecosystems and fisheries. MEDIN, marine environmental data & information Issue 31.
  19. Le Quesne WJF, Arreguín-Sánchez F, Albañez-Lucerno M, Cheng H-Q, Cruz Escalona VH. Daskalov G, Ding H, González Rodríguez E, Heymans JJ, Jaing H, Lercari D, López-Rocha JA, Mackinson S, Pinnegar JK, Polunin NVC, Wu J, Xu H-G, Zetina-Rejón MJ. 2008. Analysing ecosystem effect of selected marine protected areas with Ecospace spatial ecosystem models. Fisheries Centre Research Reports 16(2):1-67.
  20. Bundy A, Heymans SJJ, Morissette L. and Savenkoff C. 2007. Seals, cod and forage fish: a comparative exploration of variations in the theme of stock collapse and ecosystem change in NW Atlantic ecosystems. ICES CM 2007/D:15.
  21. Heymans JJ, Chuenpagdee R, Sumaila UR. 2006. Policy exploration in the Gulf of Thailand. pp. 69-74, In: Sumaila UR, Chuenpagdee R, Alexander PS, Armstrong C, Falk-Petersen J, Heymans JJ, Isaacs M, Stephanus K, Trinidad AC. Ecosystem values. Incofish project report, Deliverable 8.2. Integrating multiple demands on coastal zones with emphasis on aquatic ecosystems and fisheries.
  22. Heymans JJ, Sumaila UR, Stephanus K, Alexander PS. 2006. Ecosystem model of the northern Benguela ecosystem, Namibia. pp. 75-130 In: Sumaila UR, Chuenpagdee R, Alexander PS, Armstrong C, Falk-Petersen J, Heymans JJ, Isaacs M, Stephanus K, Trinidad AC. Ecosystem values. Incofish project report, Deliverable 8.2. Integrating multiple demands on coastal zones with emphasis on aquatic ecosystems and fisheries.
  23. Palomares MLD, Heymans JJ. Historical ecology of the Raja Ampat archipelago, Papua Province, Indonesia. Fisheries Centre Research Reports 14(7), 64 pp.
  24. Heymans JJ, Guenette S, Christensen V, Trites A. 2005. Changes in the Gulf of Alaska ecosystems due to ocean climate change and fishing. ICES CM 2005/M:22
  25. Heymans JJ. Ecosystem models of the Western and Central Aleutian Islands in 1963, 1979 and 1991. In: Guénette S, Christensen V. (Eds.) Food web models and data for studying fisheries and environmental impacts on Eastern Pacific ecosystems. Fisheries Centre Research Reports 13(1): 8-82.
  26. Heymans JJ. Ecosystem models of the eastern Aleutians and central Gulf of Alaska 1963. In: Guénette S, Christensen V. (Eds.) Food web models and data for studying fisheries and environmental impacts on Eastern Pacific ecosystems. Fisheries Centre Research Reports 13(1): 83-105.
  27. Cauffopé G, Heymans JJ. Energy contents and conversion factors for sea lion’s prey. In: Guénette S, Christensen V. (Eds.) Food web models and data for studying fisheries and environmental impacts on Eastern Pacific ecosystems. Fisheries Centre Research Reports 13(1): 225-237.
  28. Heymans JJ, Pitcher TJ. 2004. Synoptic Methods for Constructing Models of the Past. In Pitcher TJ. (ed.) Back to the Future: Advances in Methodology for Modelling and Evaluating Past Ecosystems as Future Policy Goals. Fisheries Centre Research Reports 12(1): 11-17.
  29. Christensen V, Amorim P, Diallo I, Diouf T, Guénette S, Heymans JJ, Mendy AN, Mahfoudh Sidi T, Palomares MLD, Samb B, Stobberup K, Vakily JM, Vasconcellos M, Watson R, Pauly D. 2004. Trends in fish biomass off Northwest Africa, 1960-2000, p. 215-220. In: Palomares, M.L.D., Pauly, D. (eds.) West African marine ecosystems: models and fisheries impacts. Proceedings of the International Symposium on Marine fisheries, ecosystems, and societies in West Africa: half a century of change, Dakar, Senegal, 24 – 28 June 2002.
  30. Heymans JJ. Evaluating the Ecological Effects on Exploited Ecosystems using Information Theory. Pitcher, T.J. (ed.) Back to the Future: Advances in Methodology for Modelling and Evaluating Past Ecosystems as Future Policy Goals. Fisheries Centre Research Reports 12(1): 87-90.
  31. Heymans JJ, Vakily J M. 2004. Structure and dynamics of the marine ecosystem off Sierra Leone for three time periods: 1964, 1978, 1990. In West African marine ecosystems: models and fisheries impacts: Fisheries Center Research Reports 12(7), pp. 160-169. Ed. M. L. Palomares and D. Pauly. UBC Fisheries Centre, Vancouver, BC.
  32. Heymans JJ. (Editor) Ecosystem Models of Newfoundland and Southeastern Labrador: Addition information and analyses for ‘Back to the Future’. Fisheries Centre Research Report 11(5): 79 pp.
  33. Heymans JJ. 2003. First Nations Impact On the Newfoundland Ecosystem During Pre-Contact Times. In Heymans JJ. (Ed.) Ecosystem Models of Newfoundland and Southeastern Labrador: Addition information and analyses for ‘Back to the Future’. Fisheries Centre Research Report 11(5): 4-12.
  34. Heymans JJ. Revised models for Newfoundland for the time periods 1985-87 and 1995-97. in Heymans JJ. (Ed.) Ecosystem Models of Newfoundland and Southeastern Labrador: Addition information and analyses for ‘Back to the Future’. Fisheries Centre Research Report 11(5): 40-61.
  35. Heymans JJ. Comparing the Newfoundland marine ecosystem models using Information Theory. in Heymans JJ. (Ed.) Ecosystem Models of Newfoundland and Southeastern Labrador: Addition information and analyses for ‘Back to the Future’. Fisheries Centre Research Report 11(5): 62-71.
  36. Heymans JJ. Fitting the Newfoundland model to time series data. In Heymans JJ. (Ed.) Ecosystem Models of Newfoundland and Southeastern Labrador: Addition information and analyses for ‘Back to the Future’. Fisheries Centre Research Report 11(5): 72-79.
  37. Heymans JJ, Vakily JM. 2002. Ecosystem structure and dynamics of the marine system of Sierra Leone for three time periods: 1964, 1978 and 1990. In Pauly D, Palomares MLD, Vakily JN. (Eds.) Mass-balance trophic models of Northwest African marine ecosystems. SIAP Tech. Doc. (SIAP/EP/DT/03) No. 3, pp. 146.
  38. Heymans JJ, Pitcher TJ. 2002. A model of the marine ecosystem of Newfoundland and Southern Labrador (2J3KLNO) in the time periods 1985-87 and 1995-97. In Pitcher TJ, Heymans JJ, Vasconcellos M. (Eds.) Ecosystem models of Newfoundland for the time periods 1995, 1985, 1900 and 1450. Fisheries Centre Research Report 10(5):5-43.
  39. Heymans JJ, Pitcher TJ. 2002. A Picasso-esque view of the marine ecosystem of Newfoundland and Southern Labrador: Models for the time periods 1450 and 1900. in Pitcher TJ, Heymans JJ, Vasconcellos M. (Eds.) Ecosystem models of Newfoundland for the time periods 1995, 1985, 1900 and 1450. Fisheries Centre Research Report 10(5):44-73.
  40. Ainsworth C, Heymans JJ, Pitcher TJ, Vasconcellos M. 2002. Ecosystem models of Northern British Columbia for the time periods 2000, 1950, 1900 and 1750. Fisheries Centre Research Report 10(4), 41 pp.
  41. Vasconcellos M, Heymans S. 2002. Historical Reference Points for Models of Past Ecosystems in Newfoundland, In: Pitcher T, Vasconcellos M, Heymans S, Brignall C, Haggan N. (Eds), Information supporting Past and Present Ecosystem Models of Northern British Columbia and the Newfoundland Shelf. Fisheries Centre Research Reports Volume 10(1): 7-13.
  42. Vasconcellos M, Heymans S. 2002. System boundaries for East Coast Ecosystem Models, In: P Pitcher T, Vasconcellos M, Heymans S, Brignall C, Haggan N. (Eds), Information supporting Past and Present Ecosystem Models of Northern British Columbia and the Newfoundland Shelf. Fisheries Centre Research Reports 10(1): 7
  43. Pitcher T, Vasconcellos M, Heymans S, Brignall C, Haggan N. (Eds), 2002. Information supporting Past and Present Ecosystem Models of Northern British Columbia and the Newfoundland Shelf. Fisheries Centre Research Reports Volume 10, No. 1, 116 pp.
  44. Vasconcellos M, Heymans J, Bundy A. 2002. The use of Ecosim to Investigate Multispecies Harvesting Strategies for Capture Fisheries of the Newfoundland-Labrador Shelf. In: T Pitcher, K Cochrane (eds.) The use of ecosystem models to investigate multispecies management strategies for capture fisheries. Fisheries Centre Report 10(2): 68-72.
  45. Christensen V, Guénette S, Heymans JJ, Walters CJ, Watson R, Zeller D, Pauly D. 2001. Estimating fish abundance of the North Atlantic, 1950 to 1999, in Guénette S, Christensen V, Pauly D. (Eds.), Fisheries Impacts on North Atlantic ecosystems: models and analyses. Fisheries Centre Report 9(4): 1-26.
  46. Heymans JJ. 2001. The Gulf Of Maine, 1977-1986. in Guénette S, Christensen V, Pauly D. (Eds.), Fisheries Impacts on North Atlantic ecosystems: models and analyses. Fisheries Centre Report 9(4): 129-152.

Other research outputs

Scott E, Serpetti N, Steenbeek J, Heymans JJ. A stepwise fitting procedure for automated fitting of Ecopath with Ecosim models. SoftwareX doi:10.1016/j.softx.2016.02.002. 

Professional memberships

Fellow of the Royal Society of Biology 2013-

Executive Board Member of the Ecopath Consortium Advisory Board


Expert advice to regulators / government

Advisor to the NERC funded ESPA project SPACES led by UEA: Participatory Modelling Frameworks to Understand Wellbeing Trade-offs in Coastal Ecosystem Services (since 2011) and the EU FP7 – MAREFRAME (since 2014)

 

Employment history

2006-present SAMS

2003-2006 Research Associate. Fisheries Centre. University of British Columbia (Canada)

2000-2003 PostDoctoral Fellow. Fisheries Centre. University of British Columbia (Canada)

1999-2000 PostDoctoral Fellow. Chesapeake Biological Laboratory. University of Maryland (USA)

1997-1998 Environmental Consultant. Pulles, Howard and De Lange Inc (South Africa)

1997 Fisheries Biologist. Ministry of Fisheries and Marine Resources (Namibia)


Education

1997 PhD Zoology. University of Port Elizabeth (South Africa)

1993 MSc Zoology. University of Port Elizabeth (South Africa)

1991 BSc (Hons) Zoology. University of Port Elizabeth (South Africa)

1990 BSc Zoology, Mathematics. University of Port Elizabeth (South Africa)