This project will investigate the resilience of the European flat oyster, Ostrea edulis, by studying the impact of geophysical drivers that operate at different time scales (photoperiodic, tidal, and lunar cycles) and on important life-cycle traits (e.g. valve behaviour, growth, maturation) and are mediated by an endogenous clock mechanism.

We will implement our objectives by performing seasonal in situ investigations of behavioural, growth, and maturation rhythmicity in O. edulis as well as of molecular clockwork oscillations at different geophysical time scales. The field work will take place on the island of Helgoland, the experimental lab work in Arcachon.

The goals are (i) to explore how natural environmental changes caused by geophysical cycles on different time scales (photoperiod, tidal, and lunar cycles) are transduced via molecular clocks into coordinated changes in physiological processes and (ii) to investigate clock control of selected traits such as valve behaviour, growth, and maturity development.
Tasks
 Characterisation of the circadian core clock genes and clock-associated genes
 In situ investigation of behavioural, growth, and maturity rhythmicity
 In situ investigation of molecular clockwork oscillations at daily, tidal, seasonal, and annual scales
Requirements
 Master’s degree in biology or ecology by the time of employment, earliest start date is July 2022
 Experience in molecular or genetic analysis
 Experience in conducting experiments with live animals
 Excellent spoken and written English
 Knowledge of chronobiology


Further Information
For further information, please contact Prof. Dr. Bettina Meyer (Bettina.Meyer@awi.de; +49(471)4831-1378).


The position is limited to 3 years. The salary will be paid in accordance with the Collective Agreement for the Public Service of the Federation (Tarifvertrag des öffentlichen Dienstes, TVöD Bund), up to salary level 13 (66%). The place of employment will be Bremerhaven. All doctoral candidates will be members of AWI’s postgraduate program POLMAR or another graduate school and thus benefit from a comprehensive training program and extensive support measures.


The AWI is characterised by
 our scientific success – excellent research.
 collaboration and cooperation – intra-institute, national and international, interdisciplinary.
 opportunities to develop – on the job, aiming at other positions and beyond AWI.
 a culture of reconciling work and family – an audited and well-supported aspect of our operation
 our outstanding research infrastructure – ships, stations, aircraft, laboratories and more.
 an international environment – everyday contacts with people from all over the world.
 having an influence – fundamental research with social and political relevance
 flat hierarchies – facilitating freedom and responsibility
 exciting science topics, with opportunities also in technology, administration and infrastructure
Equal opportunities are an integral part of our personnel policy.

The AWI aims to increase the number of female employees and therefore strongly encourages qualified women to apply.
Disabled applicants will be given preference when equal qualifications are present. The AWI fosters the compatibility of work and family in various ways and has received a number of awards as a result of this engagement.


We look forward to your application!
Please submit your application, including (1) a letter of motivation, (2) a CV and copies of relevant certificates (master’s degree; training) and (3) two letters of recommendation or the contact information of two references, by February 21st, 2022. Electronic applications only. Interviews of selected candidates are planned between April 25 and 29, 2022 (unless otherwise specified) and expected to be online. Reference number 22/9/G/INSPIRES-b

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