In the 41st episode of the AtlantECO podcast, we discover Nautilos, a Horizon 2020 funded project that aims to fill the gap in marine observations and improve monitoring capacities and resources. The coordinator, Gabriele Pieri explains that the project's main objective is to monitor the oceans' environmental status, spanning from chemical and biological information from deep ocean physics to surface models for forecasting. Nautilos uses a new generation of cost-effective sensors and samplers that are integrated into existing and new observing platforms such as moored buoys, animal tags and underwater vehicles. The project performs long-term deployments in large scale demonstrations across various European seas, including the Atlantic, South Atlantic, North Atlantic, Baltic, and Mediterranean. One of the project’s demonstrators is animal borne instruments, and two of the guests explain what this entails. First, Jorge Fontes presents the tools, designed to be non-invasive, which combines multiple sensors. The most complex tag includes high-resolution accelerometery, which allows for the measurement of fine details of animal movement and behaviour. It also includes a satellite positioning system and video camera with lights for deep-diving animals. Another sensor measures dissolved oxygen in the water, which is a critical variable for animals that extract their oxygen from the water. This additional sensor will allow researchers to understand how the availability or unavailability of oxygen will potentially determine how animals use their three-dimensional habitats. Understanding these changes can help predict how they will affect top predators, such as sharks, that control the food chain and have a reverberating impact on the whole ecosystem. Christophe Guinet then presents their latest development with a mini echo sounder, which is attached to elephant seals and can detect particles in the water as they dive. The team hopes to use the information gathered to assess the biological component of the oceans and to understand the ecological consequences of global warming. The team also plans to develop a micro camera triggered by the acoustic detection of the mini echo sounder to provide a visual identification of the particles detected. The system has the potential to provide valuable in-situ measurements of the biological component of the oceans that are currently lacking. We further discuss tagging of animals for research purposes. Our guests explain how they aim to move away from invasive tagging techniques towards non-invasive methods such as deploying a harness or necklace on sharks and manta rays by free diving.
The NAUTILOS project:
Nautilos website: Nautilos
Nautilos social media handles:
LinkedIn: Nautilos | LinkedIn
Twitter: NAUTILOS (@NAUTILOS_H2020) / Twitter
YouTube: NAUTILOS H2020 Project - YouTube
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The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.