TRAMPER - An autonomous crawler for long-term benthic oxygen flux studies in 
remote deep sea ecosystems

Wenzhöfer, F.; Lemburg, J.; Hofbauer, M.; Lehmenhecker, S.; Färber, P.

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TRAMPER - An autonomous crawler for long-term benthic oxygen flux studies in remote deep sea ecosystems

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Wenzhöfer, F.
HGF MPG Joint Research Group for Deep Sea Ecology & Technology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Färber, P.
Max Planck Institute for Marine Microbiology, Max Planck Society;

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Citation

Wenzhöfer, F., Lemburg, J., Hofbauer, M., Lehmenhecker, S., & Färber, P. (2016). TRAMPER - An autonomous crawler for long-term benthic oxygen flux studies in remote deep sea ecosystems. In OCEANS 2016 (pp. 1-6).

Cite as: https://hdl.handle.net/21.11116/0000-0001-C281-1

Abstract

TRAMPER is an autonomous benthic crawler equipped with oxygen sensors to perform long-term flux time series measurements at abyssal depth. The crawler is developed within the HGF-Alliance ROBEX. TRAMPER has five main subsystems: the titanium frame with the flotation, the caterpillar drive system, recovery and communication systems, energy and electronics and a multi-optode profiler as the scientific payload. A lithium-ion battery pack provides the energy to run an oxygen profiling system performing consecutive measurements (>52 cycles) along its transecting moving on the seafloor. This new generation of optode-based oxygen monitoring system allows using 18 oxygen optodes and is able to perform in situ calibrations. A video-guided launching system is used to deploy the crawler at the seafloor. At the seafloor the pre-programmed mission scenario is performed consisting of consecutive sleeping, moving and measurement cycles. The aim is to cover a seasonal cycle of settling organic matter on the seafloor and to resolve the impact on the benthic community respiration activity.