Ocean Circulation over North Atlantic underwater features in the path of the Mediterranean Outflow Water: Ormonde and Formigas seamounts, and the Gazul mud volcano
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AuthorsMosquera-Giménez, A. (Ángela); Vélez-Belchí, P. (Pedro); Rivera, J. (Jesús); Piñeiro, S. (Safo); Fajar, N. (Noelia); Caínzos, V. (Verónica); Santiago, R. (Rocío); Balbín, R. (Rosa); Jiménez-Aparicio, J.A. (Juan Antonio); Domínguez-Carrió, C. (Carlos); Blasco-Ferre, J. (Jordi); Carreiro-Silva, M. (Marina); Morato, T. (Telmo); Puerta, P. (Patricia); Orejas, C. (Covadonga)
Mediterranean Outflow Water
Seamounts constitute an obstacle to the ocean circulation, modifying it. As a result, a variety of hydrodynamical processes and phenomena may take place over seamounts, among others, flow intensification, current deflection, upwelling, Taylor caps, and internal waves. These oceanographic effects may turn seamounts into very productive ecosystems with high species diversity, and in some cases, are densely populated by benthic organisms, such corals, gorgonians, and sponges. In this study, we describe the oceanographic conditions over seamounts and other underwater features in the path of the Mediterranean Outflow Water (MOW), where populations of benthic suspensions feeders have been observed. Using CTD, LADPC and biochemical measurements carried out in the Ormonde and Formigas seamounts and the Gazul mud volcano (Northeast Atlantic), we show that Taylor caps were not observed in any of the sampled features. However, we point out that the relatively high values of the Brunt–V ...
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