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Open AccessArticle

The AMERIGO Lander and the Automatic Benthic Chamber (CBA): Two New Instruments to Measure Benthic Fluxes of Dissolved Chemical Species

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Istituto per le Risorse Biologiche e le Biotecnologie Marine (IRBIM), Consiglio Nazionale delle Ricerche (CNR), Ancona 60125, Italy
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Institute for Microelectronics and Microsystems, Consiglio Nazionale delle Ricerche, Bologna 40129, Italy
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Dipartimento Sviluppo sostenibile e Fonti Energetiche, RSE SpA, Milano 20134, Italy
*
Author to whom correspondence should be addressed.
This paper is an extended version of paper published in Spagnoli, F.; Giuliani, G.; Martinotti, V.; Masini, L.; Penna, P. AMERIGO and CBA: A new lander and a new automatic benthic chamber for dissolved benthic flux measurements. In Proceedings of the 2018 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea), Bari, Italy, 8–10 October 2018.
Sensors 2019, 19(11), 2632; https://doi.org/10.3390/s19112632
Received: 28 April 2019 / Revised: 2 June 2019 / Accepted: 5 June 2019 / Published: 10 June 2019
Marine environments are currently subject to strong ecological pressure due to local and global anthropic stressors, such as pollutants and atmospheric inputs, which also cause ocean acidification and warming. These strains can result in biogeochemical cycle variations, environmental pollution, and changes in benthic-pelagic coupling processes. Two new devices, the Amerigo Lander and the Automatic Benthic Chamber (CBA), have been developed to measure the fluxes of dissolved chemical species between sediment and the water column, to assess the biogeochemical cycle and benthic-pelagic coupling alterations due to human activities. The Amerigo Lander can operate in shallow as well as deep water (up to 6000 m), whereas the CBA has been developed for the continental shelf (up to 200 m). The lander can also be used to deploy a range of instruments on the seafloor, to study the benthic ecosystems. The two devices have successfully been tested in a variety of research tasks and environmental impact assessments in shallow and deep waters. Their measured flux data show good agreement and are also consistent with previous data. View Full-Text
Keywords: lander; benthic chambers; benthic fluxes of dissolved chemical species; marine technology; marine instrumentation lander; benthic chambers; benthic fluxes of dissolved chemical species; marine technology; marine instrumentation
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Spagnoli, F.; Penna, P.; Giuliani, G.; Masini, L.; Martinotti, V. The AMERIGO Lander and the Automatic Benthic Chamber (CBA): Two New Instruments to Measure Benthic Fluxes of Dissolved Chemical Species. Sensors 2019, 19, 2632.

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