Consulta: subjectFacets:"Cold seep ecosystems"
Registros recuperados: 2
Data/hora: 16/06/2024 09:25:04

Changes in seabed morphology, mud temperature and free gas venting at the Håkon Mosby mud volcano, offshore northern Norway, over the time period 2003-2006
Provedor de dados: 5
Autores: Foucher, Jean-paul; Dupre, Stephanie; Scalabrin, Carla; Feseker, Tomas; Harmegnies, Francois; Nouze, Herve.
The Håkon Mosby mud volcano is a 1.5-km-diameter geological structure located on the Southwest Barents Sea slope at a water depth of 1,270 m. High-definition seabed mapping of the mud volcano has been carried out in 2003 and 2006. A comparative analysis of the bathymetry and backscatter maps produced from the two surveys shows subtle morphological changes over the entire crater of the mud volcano, interpreted to be the consequence of mud eruption events. Mud temperature measurements point to a persistently warm mud at shallow depth in the crater. This is explained by upward fluid advection, rather than conductive cooling of mud flows. The small-scale spatial variability in the temperature distribution may be related to mud outflows or changes in the fluid...
Tipo: Text
Palavras-chave: Sw barents sea; Cold seep ecosystems; Fluid flow; Methane; Sediment; Onshore; Fluxes; Margin; Water.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00004/11527/10261.pdf

Temporal change in deep-sea benthic ecosystems: a review of the evidence from recent time-series studies
Provedor de dados: 5
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