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Temporal and spatial variation in the Nazaré canyon (Western Iberian margin): I...
Ramalho, Sofia; Adão, Helena; Kiriakoulakis, K.; Wolff, G.A.; Vanreusel, A.; Ingels, J.The Nazaré canyon on the Portuguese Margin (NE Atlantic) was sampled during spring-summer for three consecutive years (2005 - 2007), permitting the first inter-annual study of the meiofaunal communities at the Iberian Margin at two abyssal depths (~3500 m and ~4400 m). Using new and already published data, the meiofauna standing stocks (abundance and biomass) and nematode structural and functional diversity we...
Biodiversity of Cold Seep Ecosystems Along the European Margins
Vanreusel, A; Andersen, AC; Boetius, A; Connelly, D; Cunha, MR; Decker, C; Hilario, A; Kormas, KA; Maignien, L; Olu, K; Pachiadaki, M; Ritt, BDuring the European Commission's Framework Six Programme, HERMES, we investigated three main areas along the European margin, each characterized by the presence of seep-related structures exhibiting different intensity of activity and biological diversity. These areas are: (1) the Nordic margin with the Hakon Mosby mud volcano and many pockmarks, (2) the Gulf of Cadiz, and (3) the eastern Mediterranean with its...
Europe's Grand Canyon Nazaré Submarine Canyon
Tyler, P; Amaro, T; Arzola, R; Cunha, MR; de Stigter, H; Gooday, A; Huvenne, V; Ingels, J; Kiriakoulakis, K; Lastras, G; Masson, D; Oliveira, AThe Nazare submarine canyon extends similar to 210 km westward from the coast of Portugal, down to a water depth of > 4300 m. The considerable habitat heterogeneity found throughout the canyon is affected by strong currents and high turbidity, especially in the upper parts of the canyon. The canyon morphology comprises steep slopes, scarps, terraces, and overhangs, and a deeply incised thalweg is found in the l...
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