Dr Johanna Gammal

Johanna Gammal

Postdoctoral Fellow

Qualifications: PhD, University of Helsinki, Finland

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Research Interests

My research focus on benthic biodiversity-ecosystem function relationships. I am especially interested in the role of the benthic macrofauna communities for ecosystem functioning in varying coastal habitats. The coastal zones are very important because they provide us with numerous ecosystem services and maintain a range of vital ecosystem processes. These ecosystems are however often impacted by one or multiple stressors, such as eutrophication, hypoxia, sedimentation and pollution. In my current research I am investigating cumulative effects of multiple stressors on benthic macrofauna communities and ecosystem functioning in intertidal habitats.

Recent Publications

  • Douglas, E. J., Gammal, J., Needham, H. R., Stephenson, F., Townsend, M., Pilditch, C. A., & Lohrer, A. M. (2022). Combining techniques to conceptualise denitrification hot spots and hot moments in estuaries. Ecosystems. doi:10.1007/s10021-021-00732-7

  • Norkko, J., Pilditch, C. A., Gammal, J., Rosenberg, R., Enemar, A., Magnusson, M., . . . Norkko, A. (2019). Ecosystem functioning along gradients of increasing hypoxia and changing soft-sediment community types. Journal of Sea Research, 153. doi:10.1016/j.seares.2019.101781

  • Gammal, J., Norkko, J., Pilditch, C. A., & Norkko, A. (2016). Coastal hypoxia and the importance of benthic macrofauna communities for ecosystem functioning. Estuaries and Coasts, 12 pages. doi:10.1007/s12237-016-0152-7

Find more research publications by Johanna Gammal


Biology; Coastal Sciences; Ecology; Marine

Contact Details

Email: [email protected]
Room: R.2.18
Phone: +64 7 838 4466 ext 9411