Mechanistic modelling for ecotoxicology and ecology

DEBtox Researc

About Tjalling Jager and DEBtox Research

DEBtox Research is the private company that I run, offering my knowledge of mechanistic modelling, and basically doing good (applied) science.

After studying Biology, I spent 9 years working at RIVM on models and approaches for chemical risk assessment (specifically, EUSES and its predecessors). I specialised on (models for) bioaccumulation, and focussed on earthworms, on which I wrote my PhD thesis (download my thesis from Leanpub). From 2002-2015, I have been working at the VU University in Amsterdam, at the Department of Theoretical Biology on DEBtox and related topics. You are welcome to take a look at the website of the department for more information about DEB and the work we did there (the department ceased to exist in May 2015).

As of 1 March 2015, I have left the VU to continue working on DEBtox, DEBkiss and GUTS as a self-employed researcher under the name DEBtox Research. Even though this is a big change for me in terms of working environment, my activities remain virtually unchanged. I am still associated to the VU University as a guest researcher in the department of Animal Ecology.

I also maintain the website, which contains much more information about DEB-based and GUTS models and their applications to stress ecology (incl. ecotoxicology). This site also contains links to my (free) e-books, lists of relevant publications, and software (incl. the freely-downloadable BYOM package for Matlab).

View Tjalling Jager's profile on LinkedIn

Publication lists

Use my ResearcherID to obtain a list of scientific publications indexed in Web of Science (may not include the most recent publications). Use the link 'citation metrics' to calculate citation scores, if you like.

Or view my Orcid account or profile on Research Gate. Or take a loot at my Google Scholar account. Google Scholar finds many more publications and many more citations. It also includes (citations from) reports, books and online PDFs. The publication output and h-index from Google Scholar should therefore be interpreted in a different way than that of Web of Science. I am trying to keep all these profiles up to date, but my ResearcherID is my primary focus.

My e-books can be found through my Leanpub author page.A full list of my publications can be downloaded here.

About DEBnet

This site, and the associated DEBtox information site, forms a 'node' in an international DEB network comprising experts in a wide range of fields (aquaculture, ecotoxicology, economics, ecology and more).

At this moment, DEBnet activities include the following highlights:
  • The DEB theory portal as starting point for all things DEB.
  • The international DEB course. The course has been running since 2001 (every two years), and includes a tele part and an optional hands-on part linked to the DEB symposium. The 2017 has just finished. More information.
  • The international DEB symposium has been running since 2009. The next event is 31 May-2 June 2017 in Tromsø, Norway. More information.
  • Summerschool on toxicokinetic-toxicodynamic modelling in Denmark. This course has been running since 2012 (every two years), and teaches the basics of TKTD modelling using a simple DEB model (DEBkiss). The next course is scheduled for summer 2018. More information.
  • The add-my-pet collection of DEB parameter values for animals (almost 700 at the moment). More information. See also the multispecies parameter estimation workshops over here.
  • Several useful e-books can be obtained from Leanpub over here (they can be downloaded for free). Supporting material for the DEB book over here.
  • Freely-downloadable software. DEBtool by Bas Kooijman over here, which is also the engine for the add-my-pet calculations. DEBtoxM (aimed at toxicant effects and simplified models) and BYOM (flexible platform to build your own models) for Matlab on the information website over here.
You can read more about ongoing projects and activities taking place at some of the different nodes, collected in the DEB Wiki page.

DEBtox Research,, Chamber of Commerce Utrecht 62405055, email: tjalling (at)