Bachelor- or Master-thesis: Effects of
vor 2 Monaten
The Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) is a member of the Helmholtz Association (HGF) and funded by federal and state government. AWI focuses on polar and marine research in a variety of disciplines such as biology, oceanography, geology, geochemistry and geophysics thus allowing multidisciplinary approaches to scientific goals.
- Bachelor
- or Master-Thesis: Effects of anthropogenic underwater noise on marine invertebrate life cycle and larval development
**Background**
The ever-increasing human activities at sea (e.g. cargo shipping, oil exploitation, offshore windfarm construction and operation) are progressively changing the marine acoustic environment by the introduction of anthropogenic underwater noise (AUN). While the effect of AUN on marine mammals has been studied for years, little is known on how marine invertebrates are affected by AUN. Recent studies showed that boat noise or seismic survey have the possibility to interfere with invertebrate live cycles and larval development, possibly causing long lasting alterations in the ecosystem. As in coastal seas ever larger areas are covered by offshore windfarms it is crucial to understand whether the continuous low frequency noise emitted by them, has the potential to interfere with the live cycles and larval development of the invertebrate communities of these seas.
The thesis is part of the international project ORCHESTRA (ecOsystem Responses to Constant offsHorE Sound specTRA), funded within the framework of the JPI-Oceans joint action on Underwater Noise in the Marine Environment
**Tasks**
This study aims to experimentally investigate the effects of AUN on the live-cycle and larval development on common marine invertebrates (such as the sea urchin
_Psammechinus miliaris_) from the North Sea. Specifically it will be investigated how low frequency noise affects fertilization success, larval development, larval morphology, larval settlement, larval feeding and juvenile fitness (i.e. growth and respiration).
Specific tasks will be
- Carrying out literature surveys on the effects of
noise on aquatic invertebrates
- Carrying out experiments investigating sound effects on selected benthic invertebrates and their planktonic larvae.
- Taking part in the international project meetings, offering the opportunity to work with an international team.
**Requirements**:
- You look for an interesting topic for your bachelor or master thesis.
- You are interested in environmental sciences and environmental protection.
**Further Information**
The place of employment will be
**Bremerhaven, 27570.**
Start: as soon as possible
**You are interested?**
For further information please contact Dr. Wrede also.
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