Consulta: creatorFacets:"Soltwedel, T."
Registros recuperados: 4
Data/hora: 09/06/2024 10:38:13

Anomalies of oxygen measurements performed with Aanderaa optodes
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Lo Bue, N.; Vangriesheim, Annick; Khripounoff, Alexis; Soltwedel, T.
Four sets of measurements performed between 2005 and 2010 in the deep central Atlantic, the deep north-western Mediterranean Sea, and in the Arctic Ocean revealed strange anomalies in the performance of the Aanderaa optode 3830 sensors mounted on RCMI I current meters in low current regimes (current speeds &gt; 10 cm s(-1)). All oxygen datasets collected during these deployments showed significant drops of oxygen (50-100 mu mol) affecting the data stability of the optode sensors in low hydrodynamic conditions. High correlations between all acquired parameters (temperature, turbidity, speed and direction of currents) verified that no unusual event occurred in the mooring areas during the periods of acquisition, although natural events responsible for such...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00045/15584/14489.pdf

Temporal change in deep-sea benthic ecosystems: a review of the evidence from recent time-series studies
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Glover, A. G.; Gooday, A. J.; Bailey, D. M.; Billett, D. S. M.; Chevaldonne, P.; Colaco, Ana; Copley, J.; Cuvelier, Daphne; Desbruyeres, Daniel; Kalogeropoulou, V.; Klages, M.; Lampadariou, N.; Lejeusne, C.; Mestre, Nelia; Paterson, G. L. J.; Perez, T.; Ruhl, H.; Sarrazin, Jozee; Soltwedel, T.; Soto, E. H.; Thatje, S.; Tselepides, A.; Van Gaever, S.; Vanreusel, A.
Societal concerns over the potential impacts of recent global change have prompted renewed interest in the long term ecological monitoring of large ecosystems The deep sea is the largest ecosystem on the planet the least accessible and perhaps the least understood Nevertheless deep sea data collected over the last few decades are now being synthesised with a view to both measuring global change and predicting the future impacts of further rises in atmospheric carbon dioxide concentrations For many years it was assumed by many that the deep sea is a stable habitat buffered from short term changes in the atmosphere or upper ocean However recent studies suggest that deep seafloor ecosystems may respond relatively quickly to seasonal inter annual and decadal...
Tipo: Text
Palavras-chave: Mid atlantic ridge; East pacific rise; Gulf of Mexico; Hydrothermal vent communities; Long term change; Portuguese continental margin; Abyssal northeast pacific; Azores triple junction; Cold seep ecosystems; Dark submarine caves.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00030/14120/12727.pdf

Benthic Biology Time-Series in the Deep Sea: Indicators of Change
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Larkin, K.e.; Rhul, H.a.; Bagley, P.; Benn, A.; Bett, B.j.; Billett, D.s.m.; Boetius, A.; Chevaldonné, P.; Colaco, A.; Copley, J.; Danovaro, R.; Escobar-briones, E.; Glover, A.; Gooday, A.j.; Hugues, J.a.; Kalogeropoulou, V.; Kelly-gerreyn, B.a.; Kitazato, H.; Klages, M.; Lampadariou, N.; Lejeusne, C.; Perez, T.; Priede, I.g.; Rogers, A.; Sarradin, Pierre-marie; Sarrazin, Jozee; Soltwedel, T.; Soto, E.h.; Thatje, S.; Tselepides, A.; Tyler, P.a.; Van Den Hove, S.; Vanreusel, A.; Wenzhofer, F.
The responsiveness of benthic biological communities to climatic drivers and shifts makes them powerful indicators of biogeochemical and other environmental change in the oceans. In addition, benthic ecosystems have an economic value and are considered a vital marine resource. However deep-sea faunal dynamics and ecosystem functioning is not well defined. This has placed a higher priority in recent years on developing and sustaining long-term, time-series studies of benthic biodiversity, rate processes, and ecosystem change in deep-sea and extreme habitats. A few key long-term time-series sites exist across the global Ocean. Many of these sites are reviewed in this paper. However, much of the existing research is uncoordinated and the data collected are...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00280/39112/37665.pdf

Sampler bias in the quantitative study of deep-sea meiobenthos
Provedor de dados: Open Marine Archive
Autores: Bett, B.; Vanreusel, A.; Vincx, M.; Soltwedel, T.; Pfannkuche, O.; Lambshead, P.J.D.; Gooday, A.J.; Ferrero, T.; Dinet, A.
The  influence  of  sampler  type  on  quantitative  estimates  of  deep-sea  meiobenthos  is  examined  by  an  indirect  statistical  comparison  of  box  corer  and  multiple  corer  samples  collected  throughout  the  northeast  Atlantic,  and  by  a direct comparison  of  contemporaneously  collected  multiple  corer  and  box  corer  samples  from  a single abyssal location.  The  data  strongly  support the suggestion  that  the greater  down-wash/bow  wave  associated  with  box  corers results  in  displacement  of  surface  sediments  and  any  superficial  detritus  layer  together  with  their  associated  fauna.  Total  metazoan  meiobenthos  density  estimates  from  box  corer  samples  are  about  half  those  from  corresponding  multiple...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/273316.pdf