Samuel Nietzer

Tel.: +49-(0)4421-944-218
Fax: +49-(0)4421-944-140

E-Mail: samuel.nietzer(ayit)uni-olhqlxdedknburrfsjg.deshgi (

ICBM Terramare
Schleusenstraße 1
26382 Wilhelmshaven

Samuel Nietzer, PhD candidate

PhD Project

The focus  of my PhD project lies on the adaptability of juvenile scleractinian corals and corallimorpharians to a changing environment, e.g. rising sea surface temperatures.

It has been suggested that juvenile scleractinians – similar to other juvenile organisms – have a larger physiological plasticity than adults. In contrast, the closely related corallimorphs are known to be very adaptive even as adult polyps.

Since coral reefs are threatened by a variety of mainly anthropogenic stressors it is crucial to understand the severity of these threats. Only by examining their consequences to coral communities, the limited resources available to reef conservation can be channeled into the most effective way.

In laboratory experiments in both Guam and Germany I conduct a variety of experiments with different coral species to determine the consequences of rising water for scleractinians and corallimorpharians.


Since 2014: PhD Scholar of the German National Academic Foundation (Studienstiftung d. dt. Volkes e.V.)

Since: 2013: PhD Candidate in Marine Environmental Science, Carl-von-Ossietzky-University Oldenburg, Curator of the Aquarium Facilities at the ICBM Terramare

2011-2013: Study of Marine Environmental Science, Master Sc., Carl-von-Ossietzky-University Oldenburg

2007-2010: Study of Biology, Bachelor Sc., Julius-Maximilians-University Würzburg

Experience as research assistant

2012-2015: Various positions at the AG Planktology, AG Marine Microbiology, AG Mar. Environmental Biochemistry

2010-2011: Marine Laboratory, University of Guam, USA

2008-2011: Various positions as research assistant at the Dpt. Zoology, Dpt. Botany I & II. University of Würzburg

2007-2011: Division of Molecular Psychiatry, University Clinic Würzburg



Bogdanov, A., Hertzer, C., Kehraus, S., Nietzer, S., Rohde, S., Schupp, P.J., Wägele, H., König, G.M. 2015. Defensive Diterpene from Aeolidoidean Phyllodesmium longicirrum. Journal of natural Products, DOI: 10.1021/acs.jnatprod.5b00860

Rohde, S., Nietzer, S., Schupp, P.J. 2015. Prevalence and Mechanisms of Dynamic Chemical Defenses in Tropical Sponges. PLoS ONE 10, 7: e0132236


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