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Cutting the Umbilical: New Technological Perspectives in Benthic Deep-Sea Research ArchiMer
Brandt, Angelika; Gutt, Julian; Hildebrandt, Marc; Pawlowski, Jan; Schwendner, Jakob; Soltwedel, Thomas; Thomsen, Laurenz.
Many countries are very active in marine research and operate their own research fleets. In this decade, a number of research vessels have been renewed and equipped with the most modern navigation systems and tools. However, much of the research gear used for biological sampling, especially in the deep-sea, is outdated and dependent on wired operations. The deployment of gear can be very time consuming and, thus, expensive. The present paper reviews wire-dependent, as well as autonomous research gear for biological sampling at the deep seafloor. We describe the requirements that new gear could fulfil, including the improvement of spatial and temporal sampling resolution, increased autonomy, more efficient sample conservation methodologies for morphological...
Tipo: Text Palavras-chave: Deep-sea; Autonomous sampling devices; Sampling efficiency; Benthic research; Wire times; Robotics.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00335/44589/44306.pdf
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Deep-sea benthic ecosystem collapse and recovery after an intense Dense Shelf Water Cascading event ArchiMer
Pusceddu, Antonio; Mea, M.; Canals, Miquel; Heussner, Serge; Durrieu De Madron, Xavier; Sanchez-vidal, A.; Bianchelli, S.; Corinaldesi, Cinzia; Dell'Anno, A.; Thomsen, Laurenz; Danovaro, Roberto.
Submarine canyons of several regions of the world are preferential conduits for Dense Shelf Water Cascading (DSWC), which quickly modify physical and chemical conditions while transporting large amounts of material towards the adjacent deep margin. Observations conducted during the last 15 yr in the Cap de Creus Canyon (Gulf of Lion, NW Mediterranean Sea) reported several intense events of DSWC. Their effects on the deep-sea biodiversity and ecosystem functioning are almost unknown. To investigate the effects of these episodic events we analysed changes in the meiofaunal biodiversity inside and outside the canyon. Sediment samples were collected at depths varying from ca. 1000 to > 2100 m in May 2004 (before a major event), April 2005 (during a major...
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Ano: 2012 URL: http://archimer.ifremer.fr/doc/00129/24026/21982.pdf
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Societal need for improved understanding of climate change, anthropogenic impacts, and geo-hazard warning drive development of ocean observatories in European Seas ArchiMer
Ruhl, Henry A.; Andre, Michel; Beranzoli, Laura; Cagatay, M. Namik; Colaco, Ana; Cannat, Mathilde; Danobeitia, Juanjo J.; Favali, Paolo; Geli, Louis; Gillooly, Michael; Greinert, Jens; Hall, Per O. J.; Huber, Robert; Karstensen, Johannes; Lampitt, Richard S.; Larkin, Kate E.; Lykousis, Vasilios; Mienert, Jurgen; Miguel Miranda, J.; Person, Roland; Priede, Imants G.; Puillat, Ingrid; Thomsen, Laurenz; Waldmann, Christoph.
Society's needs for a network of in situ ocean observing systems cross many areas of earth and marine science. Here we review the science themes that benefit from data supplied from ocean observatories. Understanding from existing studies is fragmented to the extent that it lacks the coherent long-term monitoring needed to address questions at the scales essential to understand climate change and improve geo-hazard early warning. Data sets from the deep sea are particularly rare with long-term data available from only a few locations worldwide. These science areas have impacts on societal health and well-being and our awareness of ocean function in a shifting climate. Substantial efforts are underway to realise a network of open-ocean observatories around...
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Ano: 2011 URL: http://archimer.ifremer.fr/doc/00044/15557/15923.pdf
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